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Volumn 26, Issue 7, 2016, Pages 1803-1808

Structure-based design and development of (benz)imidazole pyridones as JAK1-selective kinase inhibitors

Author keywords

JAK1 kinase inhibitor; Janus Kinase; Structure based design

Indexed keywords

BENZIMIDAZOLE; JANUS KINASE 1; JANUS KINASE INHIBITOR; PYRIDONE DERIVATIVE; RIBOSE; RUXOLITINIB; TOFACITINIB; BENZIMIDAZOLE DERIVATIVE; JAK1 PROTEIN, HUMAN; PROTEIN KINASE INHIBITOR;

EID: 84979072426     PISSN: 0960894X     EISSN: 14643405     Source Type: Journal    
DOI: 10.1016/j.bmcl.2016.02.035     Document Type: Article
Times cited : (19)

References (29)
  • 11
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    • Compounds were tested in two cell-based assays for their ability to inhibit cytokine induced signaling, including (a) IL-6 stimulation related to JAK1/2-pSTAT3 pathway signaling and (b) EPO stimulation related to JAK2-pSTAT5 pathway signaling. In general, we have observed good correlation between the enzymatic JAK2/JAK1 ratio and the cell EPO/IL-6 ratio. See the Supporting information for more details.
    • 5 Compounds were tested in two cell-based assays for their ability to inhibit cytokine induced signaling, including (a) IL-6 stimulation related to JAK1/2-pSTAT3 pathway signaling and (b) EPO stimulation related to JAK2-pSTAT5 pathway signaling. In general, we have observed good correlation between the enzymatic JAK2/JAK1 ratio and the cell EPO/IL-6 ratio. See the Supporting information for more details.
  • 15
    • 85043094880 scopus 로고    scopus 로고
    • Prior to our work, pyridone benzimidazoles had been described in the literature as tyrosine kinase inhibitors having anti-cancer activity. See: Wittman, M. D.; Balasubramanian, N.; Velaparthi, U.; Zimmermann, K.; Saulnier, M. G.; Liu, P.; Sang, X.; Frennesson, D.; Stoffan, K. M.; Tarrant, J. G. WO 2002/079192, A1.
    • 7(a) Prior to our work, pyridone benzimidazoles had been described in the literature as tyrosine kinase inhibitors having anti-cancer activity. See: Wittman, M. D.; Balasubramanian, N.; Velaparthi, U.; Zimmermann, K.; Saulnier, M. G.; Liu, P.; Sang, X.; Frennesson, D.; Stoffan, K. M.; Tarrant, J. G. WO 2002/079192, A1.
  • 17
    • 77953631827 scopus 로고    scopus 로고
    • Ultimately, the goal was to achieve EPO/IL-6 pathway selectivity of 15-fold or higher in the cell-based pathway reporter gene assays in order to differentiate our compounds from the currently marketed pan-selective JAK inhibitors. For a discussion on previously reported strategies to displace or engage a conserved water molecule in medicinal chemistry, see:
    • 8(a) Ultimately, the goal was to achieve EPO/IL-6 pathway selectivity of 15-fold or higher in the cell-based pathway reporter gene assays in order to differentiate our compounds from the currently marketed pan-selective JAK inhibitors. For a discussion on previously reported strategies to displace or engage a conserved water molecule in medicinal chemistry, see:Stahl, M., Kuhn, B., Bissantz, C., J. Med. Chem. (Perspective), 53, 2010, 5061.
    • (2010) J. Med. Chem. (Perspective) , vol.53 , pp. 5061
    • Stahl, M.1    Kuhn, B.2    Bissantz, C.3
  • 18
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    • 8(b) Dunitz, D.J., Science, 264, 1994, 670.
    • (1994) Science , vol.264 , pp. 670
    • Dunitz, D.J.1
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    • Calculations were performed at the B3LYP/6-31+G(d) level of theory by using the G09 program in implicit solvent model (iefpcm).
    • 10 Calculations were performed at the B3LYP/6-31+G(d) level of theory by using the G09 program in implicit solvent model (iefpcm).
  • 22
    • 85043125696 scopus 로고    scopus 로고
    • Functional selectivity for IL-6 signaling versus EPO signaling was performed by measuring the inhibition of EPO driven proliferation of human CD34+ hematopoietic stem cells and IL-6 driven secretion of MCP1 from human PBMCs.
    • 12 Functional selectivity for IL-6 signaling versus EPO signaling was performed by measuring the inhibition of EPO driven proliferation of human CD34+ hematopoietic stem cells and IL-6 driven secretion of MCP1 from human PBMCs.
  • 23
    • 85043130955 scopus 로고    scopus 로고
    • IL-7 signaling in human and/or rat whole blood was measured by stimulating with IL-7 and measuring pSTAT5 in the CD3+ CD4+ cell subset by flow cytometry.
    • 13 IL-7 signaling in human and/or rat whole blood was measured by stimulating with IL-7 and measuring pSTAT5 in the CD3+ CD4+ cell subset by flow cytometry.
  • 24
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    • Tested at Invitrogen using SelectScreen™ Kinase Profiling
    • 14 Tested at Invitrogen using SelectScreen™ Kinase Profiling (www.thermofisher.com).
  • 27
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    • 50activity relative to JAK1 was NUAK1. NUAK1 is a member of the AMPK (AMP-activated protein kinase) family of protein kinases that are activated by the LKB1 tumor suppressor kinase and plays an important role in regulating key biological processes, such as tumorigenesis, senescence, cell adhesion and neuronal polarity. There is some evidence suggesting that NUAK1 participates in induction of tumor survival, however, for the most part, its detailed biological functions remain unclear. See:
    • 16(a) The only measured non-JAK kinase that showed <100-fold IC50activity relative to JAK1 was NUAK1. NUAK1 is a member of the AMPK (AMP-activated protein kinase) family of protein kinases that are activated by the LKB1 tumor suppressor kinase and plays an important role in regulating key biological processes, such as tumorigenesis, senescence, cell adhesion and neuronal polarity. There is some evidence suggesting that NUAK1 participates in induction of tumor survival, however, for the most part, its detailed biological functions remain unclear. See:Hou, X., Liu, J.E., Liu, W., Liu, C.Y., Liu, Z.Y., Sun, Z.Y., Oncogene, 30, 2011, 2933.
    • (2011) Oncogene , vol.30 , pp. 2933
    • Hou, X.1    Liu, J.E.2    Liu, W.3    Liu, C.Y.4    Liu, Z.Y.5    Sun, Z.Y.6


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.