United States Patent B-Alanine Dose Dependence Of
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US007056685B1 (12) United States Patent (10) Patent No.: US 7,056,685 B1 Chen et al. (45) Date of Patent: Jun. 6, 2006 (54) RECEPTOR LIGANDS AND METHODS OF 6,448,230 B1 9/2002 Ruben et al. MODULATING RECEPTORS 6,555,339 B1 4/2003 Liaw et al. 6,680,373 B1 1/2004 Conley et al. (75) Inventors: Jin-Long Chen, San Mateo, CA (US); 29:92. A. 29: R al 1 Lei Ling, Foster City, CA (US); Hui CCCK ( a. Tian, Foster City, CA (US) 2004, OO19109 A1 1/2004 Owman et al. FOREIGN PATENT DOCUMENTS (73) Assignee: Amgen Inc., Thousands Oaks, CA (US) DE 10046970 A1 4/2002 (*) Notice: Subject to any disclaimer, the term of this EP 853126 A2 7, 1998 EP 859053 A1 8, 1998 patent is extended or adjusted under 35 EP 1094.076 A1 4, 2001 U.S.C. 154(b) by 0 days. EP 1178053 A2 2?2002 GB 2365O12 A 2, 2002 (21) Appl. No.: 10/703,145 GB 2369364. A 5, 2002 GB 1219638 A2 T 2002 (22) Filed: Nov. 5, 2003 JP 10304887 11, 1998 WO WO 95,24411 A1 9, 1995 Related U.S. Application Data WO WO 97/20045 A2 6, 1997 WO WO 97.24929 A1 7/1997 (60) Provisional application No. 60/424,093, filed on Nov. WO WO 98.40483 A2 9, 1998 5, 2002. WO WO 99/15858 A2 4f1999 WO WOOO 14229 A1 3, 2000 (51) Int. Cl. WO WOOO,22129 A1 4, 2000 GOIN 33/53 (2006.01) GOIN 33/00 (2006.01) (Continued) CI2P 2/06 (2006.01) OTHER PUBLICATIONS C07K I4/00 (2006.01) (52) U.S. Cl. ..................... 435/7.1; 435/7.93; 435/69.1; see Bowie et. al., Science 247: 1306-1310, 1990.* 530/350; 436/129 (Continued) (58) Field of Classification Search ................ 530/350, 530/300; 435/6, 7.1, 7.93, 7.95: 436/129; Primary Examiner Eileen B. O'Hara 35/69.1 (74) Attorney, Agent, or Firm Banner & Witcoff, Ltd. See application file for complete search history. (57) ABSTRACT (56) References Cited U.S. PATENT DOCUMENTS The invention provides natural ligands of various receptors and methods of identifying modulators of various receptors 5,436,128 A 7/1995 Harpold et al. using the ligands. Methods of using the modulators to treat 5,714,566 A 2f1998 Lubowtiz et al. 5,871,963 A 2/1999 Conley et al. diseases or disorder associated with dysfunction of the 5,910,430 A 6/1999 Bergsma et al. receptor are also provided. 6,008.322 A 12/1999 Kuestner et al. 6,063,582 A 5/2000 Conley et al. 5 Claims, 10 Drawing Sheets B-Alanine Dose Dependence of TGR2 in CHO Cells EC50 9.106e-006 -6 -5 -4 Concentration (log,M) US 7,056,685 B1 Page 2 FOREIGN PATENT DOCUMENTS Baldwin et al.; Baillieres Clin. Endocrinol. Metab. 1994; WO WOOO,221.31 A2 4/2000 8(1):185-214. 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WO WO O3,068959 A1 8, 2003 Murray, Ian et al.: “Acylation-stimulating protein (ASP): OTHER PUBLICATIONS structure-function determinants of cell Surface binding and triacylglycerol synthetic activity”; Biochem. J., 1999; Wells, Biochemistry 29:8509-8517, 1990.* 342:41-48. Altenhofen, W. et al.: “Control of ligand specificity in cyclic Offermanns, Stefan & Melvin I. Simon: “GOs and Glo. nucleotide-gated channels from rod photoreceptors and Couple a Wide Variety of Receptors to Phospholipase C': olfactory epitheilum: Proc. Natl. Acad. Sci. USA; Nov. The Journal of Biological Chemistry; 1995: 270(25):15175 1991; 88: 9868-9872. 1518O. An, Songzhu et al., “Identification and characterization of a melanin-concentrating hormone receptor. Proc. Natl. Acad. Wilkie, Thomas M. et al.: “Characterization of G-protein C. Sci. USA; Jun. 19, 2001: 98(13):7578-7581. subunits in the G class: Expression in murine tissues and in Baldo, Allain et al.: “ The Adipsin-Acylation Stimulating stromal and hematopoietic cell lines’; Proc. Natl. Acad. Sci. Protein System and Regulation of Intracellular Triglyceride USA; Nov. 1991; 88: 10049-10053. Synthesis”; J. Clin. Invest. 1993; 92:1543-1547. * cited by examiner U.S. Patent Jun. 6, 2006 Sheet 1 of 10 US 7,056,685 B1 FIGURE 1. B-Alanine Dose Dependence of TGR2 in CHO Cells 5000 E- 4000 1. B. ?t 3000 is: ... 2000 EC50 9.106e-006 } : 1000 O -7 -6 -5 -4 Concentration (log,M) U.S. Patent Jun. 6, 2006 Sheet 2 of 10 US 7,056,685 B1 Figure 2 GPR43-Aequorin-Short chain FAS 20OOOOO 15OOOOO EC50 I acetic 140 uM 1OOOOOO A propionic 125 uM v isobutyric 840 M 50OOOO O -6 -5 -4 -3 -2 -1 U.S. Patent Jun. 6, 2006 Sheet 3 of 10 US 7,056,685 B1 Figure 3 EC50 /N/ COOH butyric acid >1000 uM / N/N/ COOH hexanoic acid 834 uM / N/N/N/ COOH octanoic acid 17 uM / N/N/N/N/ COOH decanoic acid 78 uM /N/N/N/N/N/ COOH dodecanoic acid 43 uM /N/N/N/N/N/N/ COOH tetradecanoic acid -40 uM /N/N/N/N/N/N/N/ COOH hexadecanoic acid ~40 uM /N/N/N/N/N/N/N/N/ COO octadecanoic acid N/D /N/N/N/N/N/N/N/N/N/ COOH Arachidic acid >1000 uM U.S. Patent Jun. 6, 2006 Sheet 4 of 10 US 7,056,685 B1 Figure 4 EC50 C COOH Docosatetraaenoic acid 8.1 uM rea pro- N/N/ COOH COO Docosapentaenoic acid 6.0 uM COOH Docosahexaenoic acid 4.0 uM Eicosatetraenoic acid (arachidonic) 23.1 uM Eicosapentaenoic acid 13.8 uM U.S. Patent US 7,056,685 B1 000009?. 000000|| 000009 u J On be U.S. Patent Jun. 6, 2006 Sheet 7 of 10 US 7,056,685 B1 FLIPR (293.TGR18 stable cells) EC50 (uM) I Succinic acid 27 a maleic acid 284. y succinyl anhydride 30 • methylmalonic acid 134 o fumaric acid o T984 6.7 Figure 6B U.S. Patent Jun. 6, 2006 Sheet 8 of 10 US 7,056,685 B1 O OH 4. OH HO HO O O Succinic acid fumaric acid O OH HO OH O O O Oxalacetic acid methylmalonic acid itaConic acid N O OO O H Succinic anhydride Succinimide O HO--- succinic acid semialdehyde Figure 6C U.S. Patent Jun. 6, 2006 Sheet 9 of 10 US 7,056,685 B1 CHO cells transiently transfected with TGR164 (aequorin assay on Lumat) 1 OOOOO g-Ketoglutaric acid 246 9. v Succinic acid 59 75000 o ItaConic acid 94 9. o, Glutaric acid 363 50000 o Fumaric acid f 25000 9.