Abstract
The pioneering work on TRH [1–4] inspired the staff of the Institute for Biomedical Research of the University of Texas at Austin to isolate concentrates of LHRH from tissue and conduct chemical and enzymic inactivation experiments toward determining certain amino acids in LHRH. These studies [5] resulted in the crucial conclusion that LHRH is a decapeptide rather than a nonapeptide [6]. These inactivation experiments not only provided accurate structural information, but were the basis for the synthesis of <Glu-Tyr-Arg-Trp-NH2 [7]. the first reported synthetic LHRH agonist. These early successes on TRH and LliRH were the basis for K. Folkers and C. Bowers to join in the transition to antagonists of LHRH.
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References
Folkers, K., Enzmann, F. and Boler, J. Discovery of modification of the synthetic tripeptide-sequence of the thyrotropin releasing hormone having activity. Biochem. Biophys. Res. Commun., 37, 123 (1969).
Enzmann, F., Boler, J., Folkers, K., Bowers, C.Y., and Schally, A.V. Structure and synthesis of the thyrotropin releasing hormone. J. Med. Chem., 14, 469 (1971).
Boler, J., Enzmann, F. and Folkers, K., Bowers, C.Y. and Schally, A.V. The identity of chemical and hormonal properties of the thyrotropin releasing hormone and pyroglutamyl-histidyl-proline amide. Biochem. Biophys. Res. Commun., 37, 705 (1969).
Boler, J. Chang, J.-K., Enzmann, F. and Folkers, K. Synthesis of the thyrotropin releasing hormone. J. Med. Chem., 14, 475 (1971).
Bogentoft, C., Currie, B.L., Sievertsson, H., Chang, J.-K., Folkers, K. and Bowers, C.Y. On the structure of the hypothalamic luteinizing releasing hormone. Evidence for the presence of arginine, tyrosine, and tryptophan by inactivation. Biochem. Biophys. Res. Commun., 44, 403 (1971).
Schally, A.V., Baba, Y., Arimura, A., Rodding, T.W. and White, W.F. Evidence for peptide nature of LH and FSH-releasing hormones. Biochem. Biophys. Res. Commun., 42, 50 (1971).
Chang, J.-K., Sievertsson, H., Bogentoft, C., Currie, B.L. and Folkers, K. Discovery of a new synthetic tetrapeptide having luteinizing releasing hormone (LRH) activity. Biochem. Biophys. Res. Commun., 44, 409 (1971).
Vale, W., Grant, G., Rivier, J., Monahan, M., Amoss, M., Blackwell, R., Burgus, R. and Guillemin, R. Synthetic polypeptide antagonists of the hypothalamic luteinizing hormone releasing factor. Science, 176, 933 (1972).
Humphries, J., Fisher, G., Wan, Y.P., Folkers, K. and Bowers, C.Y. Analogs of the luteinizing hormone-releasing hormone to study conformational aspects of the aromatic amino acid moieties and inhibition. J. Med. Chem., 17, 569 (1974).
Wan, Y.P., Humphries, J., Fisher, G., Folkers, K. and Bowers, C.Y. Inhibitors of the luteinizing hormone-releasing hormone based upon modifications in the 2, 3 and 6 positions. J. Med. Chem., 19 199 (1976).
Baker, B.R., “Design of active-site-directed irreversible enzyme inhibitors,” John Wiley and Sons, Inc., New York, 1967.
Bowers, C.Y., Wan, Y.P., Humphries, J. and Folkers, K. Studies on inhibition of the luteinizing hormone-releasing hormone by an irreversible inhibitor at the receptor site. Biochem. Biophys. Res. Commun., 61, 698 (1974).
Bowers, C.Y., Humphries, J., Wan, Y.P. and Folkers, K. LHRH analog antagonists. Fed. Proc. Abstracts, 34, 240 (1975).
Humphries, J., Wan, Y.P., Folkers, K. and Bowers, C.Y. Presence of proline in position 3 for potent inhibition of the activity of the luteinizing hormone releasing hormone and of ovulation. Biochem. Biophys. Res. Commun., 72, 939 (1976).
Bowers, C.Y. and Folkers, K. Contraception and inhibition of ovulation by minipump infusion of the luteinizing hormone releasing hormone, active analogs and antagonists. Biochem. Biophys. Res. Commun., 72, 1003 (1976).
Humphries, J., Wasiak, T., Wan, Y.P., Folkers, K. and Bowers, C.Y. An antiovulatory decapeptide of higher potency which has an L-amino acid (Ac-Pro) in position 1. Biochem. Biophys. Res. Commun., 85, 709 (1978).
Wasiak, T., Humphries, J., Folkers, K. and Bowers, C.Y. A new category of ovulation inhibitors. Linear LHRH analogues having more than ten amino acids. Biochem. Biophys. Res. Commun., 86, 843 (1979).
Folkers, K., Bowers, C.Y., Lutz, W., Friebel, K., Kubiak, T., Schircks, B. and Rampold, G. Synthesis and bioassay of antagonists of the luteinizing hormone releasing hormone having the Azagly10 moiety. Z. Naturforsch., 37b, 1075 (1982).
Folkers, K., Bowers, C.Y., Momany, F., Friebel, K., Kubiak, T. and Maher, J. Antiovulatory potency and conformation of an antagonist of the luteinizing hormone-releasing hormone having six D-amino acids. Z. Naturforsch., 37b, 872 (1982).
Folkers, K., Bowers, C.Y., Stepinski, J., Pluchinski, T., Sakagami, M. and Kubiak, T. Analogs of the luteinizing hormone releasing hormone having the Azagly10 moiety with antiovulatory activity. Z. Naturforsch., 39b, 528 (1984).
Folkers, K., Bowers, C.Y., Kubiak, T. and Stepinski, J. Synthesis and antiovulatory activities in rats of analogs of the luteinizing hormone releasing hormone having a moiety of 13-(3-quinolyl) -D-α-alanine in position 3 and 6. Z. Naturforsch., 38b, 1253 (1983).
Nestor, J.J. Jr., Ho, T., Simpson, R.A., Horner, B.L., Jones, G.H., McRae, G.I. and Vickery, B.H. Synthesis and biological activity of some very hydrophobic superagonist analogues of luteinizing hormone-releasing hormone. J. Med. Chem., 25, 795 (1982).
Folkers, K., Bowers, C.Y., Kubiak, T. and Stepinski, J. Antagonists of the luteinizing hormone releasing hormone with pyridyl-alanines which completely inhibit ovulation at nanogram dosage. Biochem. Biophys. Res. Commun., 111, 1089 (1983).
Folkers, K., Bowers, C.Y., Shieh, H--M, Liu, Y-Z, Xiao, S-B, Tang, L. and Chu, J-Y. Antagonist of the luteinizing hormone releasing hormone (LHRH) with emphasis on the Trp1 of the salmon and chicken II LHRH’s. Biochem. Biophys. Res. Commun., 123, 1221 (1984).
Folkers, K., Bowers, C.Y., Tang, P-F. L., Kubota, J., Xiao, S.-B., Bender, W. and Liu, Y.-Z. Relative potencies of antagonists of the luteinizing hormone releasing hormone with Lys8 and Arg8 and substitutions in positions 3, 5, 6, 7 and 8. Z. Naturforsch., in press (1986).
Folkers, K., Bowers, C.Y., Xiao, S-B, Tang, P-F.L. and Kubota, M. Increased potency of antagonists of the luteinizing hormone releasing hormone which have D-Pal(3) in position 6. Biochem. Biophys. Res. Commun., 137, 709 (1986).
Schmidt, F., Sundaram, K., Thau, R.B. and Bardin, C.W. [Ac-D-Nal(2)1, 4-FD-Phe2, D-Trp3, D-Arg6]-LHRH, a potent antagonist of LHRH, produces transient edema and behavioral changes in rats. Contraception, 29, 283 (1984).
Karten, M.J. and Rivier, J.E. Gonadotropin-releasing hormone analog design. Structure-function studies toward the development of agonists and antagonists: rationale and perspectives. Endocr. Rev., 7, 44 (1986).
Folkers, K., Bowers, C.Y., Xiao, S-B, Tang, P-F.L., Kubota, J., Stepinski, J. and Kubiak, T. Activities of antagonists of the luteinizing hormone releasing hormone with emphasis on positions 1, 5 and 6 and on positions 1, 2 and 3. Z. Naturforsch., in press (1986).
Katayama, Y. and North, R.A. Nature, 274, 387 (1978).
Roeske, R.W., Chaturvedi, N.C., Rivier, J., Vale, W., Porter, J. and Perrin, M. Substitution of Arg5 for Tyr5 in GnRH antagonists. In “Peptides: Structure and Function” Proceedings of the Ninth American Peptide Symposium. C.M. Deber, V.J. Hruby, and K.D. Kopple (Eds.), Pierce Chemical Co., Rockford, IL, 1985, p. 561.
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Folkers, K. et al. (1987). Specificity of Design to Achieve Antagonists of LHRH of Increasing Effectiveness in Therapeutic Activity. In: Vickery, B.H., Nestor, J.J. (eds) LHRH and Its Analogs. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3229-6_3
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DOI: https://doi.org/10.1007/978-94-009-3229-6_3
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