1
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Manning MC, Chou DK, Murphy BM, Payne RW, Katayama DS. Stability of protein pharmaceuticals: an update. Pharm Res 2010; 27:544-75. [PMID: 20143256 DOI: 10.1007/s11095-009-0045-6] [Citation(s) in RCA: 737] [Impact Index Per Article: 52.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2009] [Accepted: 12/27/2009] [Indexed: 12/16/2022]
Abstract
In 1989, Manning, Patel, and Borchardt wrote a review of protein stability (Manning et al., Pharm. Res. 6:903-918, 1989), which has been widely referenced ever since. At the time, recombinant protein therapy was still in its infancy. This review summarizes the advances that have been made since then regarding protein stabilization and formulation. In addition to a discussion of the current understanding of chemical and physical instability, sections are included on stabilization in aqueous solution and the dried state, the use of chemical modification and mutagenesis to improve stability, and the interrelationship between chemical and physical instability.
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2
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Josan JS, Morse DL, Xu L, Trissal M, Baggett B, Davis P, Vagner J, Gillies RJ, Hruby VJ. Solid-phase synthetic strategy and bioevaluation of a labeled delta-opioid receptor ligand Dmt-Tic-Lys for in vivo imaging. Org Lett 2009; 11:2479-82. [PMID: 19445485 DOI: 10.1021/ol900200k] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A general solid-phase synthetic strategy is developed to prepare fluorescent and/or lanthanide-labeled derivatives of the delta-opioid receptor (deltaOR) ligand H-Dmt-Tic-Lys(R)-OH. The high delta-OR affinity (K(i) = 3 nM) and desirable in vivo characteristics of the Cy5 derivative 1 suggest its usefulness for structure-function studies and receptor localization and as a high-contrast noninvasive molecular marker for live imaging ex vivo or in vivo.
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Affiliation(s)
- Jatinder S Josan
- Department of Chemistry, BIO5 Institute, The University of Arizona, Tucson, Arizona 85721, USA
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3
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Sunel V, Popa M, Desbrières J, Profire L, Otilia P, Catalina L. New di-(beta-chloroethyl)-alpha-amides on N-(meta-acylamino-benzoyl)- D,L-aminoacid supports with antitumoral activity. Molecules 2008; 13:177-89. [PMID: 18259140 PMCID: PMC6245399 DOI: 10.3390/molecules13010177] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2007] [Revised: 01/23/2007] [Accepted: 01/23/2007] [Indexed: 11/25/2022] Open
Abstract
In order to obtain new compounds with antitumoural action the N-(meta-acylaminobenzoyl)-alpha-acylaminobenzoyl)-alpha-aminoacids 4-9 were prepared. These compounds were subsequently converted into the corresponding Delta(2)-oxazolin-5-ones 10-15, which in turn were submitted to a ring opening reaction with di-(beta-chloroethyl)amine to afford the peptide supported N-mustards 16-21, which showed low toxicity and cytostatic activity similar to that of sarcolisine against the Ehrlich ascite and Walker 253 carcinosarcoma.
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Affiliation(s)
- Valeriu Sunel
- Department of Organic Chemistry and Biochemistry, Faculty of Chemistry, Al. I. Cuza University, Iasi, 11 B-dul Carol I, 700506, Romania; e-mails: (for Sunel), (for Otilia)
| | - Marcel Popa
- Department of Natural and Synthetic Polymers, Faculty of Chemical Engineering and Environmental Protection, Gh. Asachi Technical University, 71A B-dul Mangeron, Iasi, 700050, Romania; e-mail:
| | - Jacques Desbrières
- Institut Pluridisciplinaire de Recherche sur l’Environnement et les Matériaux – Equipe de Physique et Chimie des Polymèrs (IPREM/EPCP), UMR 5254 CNRS – Pau et Pays de l’Adour University, Hélioparc Pau Pyrénées 2, av. President Angout, 64053 Pau Cedex 09, France
| | - Lenuta Profire
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gr. T. Popa Medicine and Pharmacy University, 16 Universitatii Street, 700115, Romania
| | - Pintilie Otilia
- Department of Organic Chemistry and Biochemistry, Faculty of Chemistry, Al. I. Cuza University, Iasi, 11 B-dul Carol I, 700506, Romania; e-mails: (for Sunel), (for Otilia)
| | - Lionte Catalina
- Medical Clinic, Emergency Clinic Hospital, Faculty of Medicine, Gr. T. Popa Medicine and Pharmacy University, 16 Universitatii Street, 700115, Romania
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4
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Vergura R, Valenti E, Hebbes CP, Gavioli EC, Spagnolo B, McDonald J, Lambert DG, Balboni G, Salvadori S, Regoli D, Calo' G. Dmt-Tic-NH-CH2-Bid (UFP-502), a potent DOP receptor agonist: in vitro and in vivo studies. Peptides 2006; 27:3322-30. [PMID: 16963157 DOI: 10.1016/j.peptides.2006.07.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2006] [Revised: 07/24/2006] [Accepted: 07/24/2006] [Indexed: 11/16/2022]
Abstract
Knockout and pharmacological studies demonstrated that the activation of delta opioid peptide (DOP) receptors produces antidepressant-like effects in rodents. Here we report the results obtained with the novel DOP ligand H-Dmt-Tic-NH-CH(2)-Bid (UFP-502). UFP-502 bound with high affinity (pK(i) 9.43) to recombinant DOP receptors displaying moderate selectivity over MOP and KOP. In CHO(hDOP) [(35)S]GTPgammaS binding and mouse vas deferens experiments, UFP-502 behaved as a potent (pEC(50) 10.09 and 10.70, respectively) full agonist. In these preparations, naloxone, naltrindole and N,N(CH(3))(2)Dmt-Tic-OH showed similar pA(2) values against UFP-502 and DPDPE and the same rank order of potency. In vivo in mice, UFP-502 mimicked DPDPE actions, producing a significant reduction of immobility time after intracerebroventricular administration in the forced swimming test and a clear antinociceptive effect after intrathecal injection in the tail withdrawal assay. However, while the effects of DPDPE were fully prevented by naltrindole those evoked by UFP-502 were unaffected (tail withdrawal assay) or only partially reversed (forced swimming test). In conclusion, UFP-502 represents a novel and useful chemical template for the design of selective agonists for the DOP receptor.
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Affiliation(s)
- Raffaella Vergura
- Department of Experimental and Clinical Medicine, Section of Pharmacology, and Neuroscience Centre, University of Ferrara, via Fossato di Mortara 19, 44100 Ferrara, Italy
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5
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Tourwé D, Salvadori S, Bryant SD, Jinsmaa Y, Lazarus LH, Negri L, Giannini E, Lattanzi R, Balboni G. New 2',6'-dimethyl-L-tyrosine (Dmt) opioid peptidomimetics based on the Aba-Gly scaffold. Development of unique mu-opioid receptor ligands. J Med Chem 2006; 49:3990-3. [PMID: 16789756 PMCID: PMC2983084 DOI: 10.1021/jm0603264] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The Aba-Gly scaffold, incorporated into Dmt-Tic ligands (H-Dmt-Tic-Gly-NH-CH2-Ph, H-Dmt-Tic-Gly-NH-Ph, H-Dmt-Tic-NH-CH2-Bid), exhibited mixed micro/delta or delta opioid receptor activities with micro agonism. Substitution of Tic by Aba-Gly coupled to -NH-CH2-Ph (1), -NH-Ph (2), or -Bid (Bid=1H-benzimidazole-2-yl) (3) shifted affinity (Ki(micro)=0.46, 1.48, and 19.9 nM, respectively), selectivity, and bioactivity to micro-opioid receptors. These compounds represent templates for a new class of lead opioid agonists that are easily synthesized and suitable for therapeutic pain relief.
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MESH Headings
- Analgesics, Opioid/chemical synthesis
- Analgesics, Opioid/chemistry
- Analgesics, Opioid/pharmacology
- Animals
- Benzazepines/chemical synthesis
- Benzazepines/pharmacology
- Glycine/analogs & derivatives
- Glycine/chemical synthesis
- Glycine/pharmacology
- Guinea Pigs
- In Vitro Techniques
- Ligands
- Molecular Mimicry
- Muscle Contraction/drug effects
- Muscle, Smooth/drug effects
- Muscle, Smooth/innervation
- Muscle, Smooth/physiology
- Myenteric Plexus/physiology
- Peptides/chemistry
- Rats
- Rats, Sprague-Dawley
- Receptors, Opioid, delta/metabolism
- Receptors, Opioid, mu/agonists
- Structure-Activity Relationship
- Synaptosomes/drug effects
- Synaptosomes/metabolism
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Affiliation(s)
- Dirk Tourwé
- Department of Organic Chemistry, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Severo Salvadori
- Department of Pharmaceutical Sciences and Biotechnology Center, University of Ferrara, I-44100 Ferrara, Italy
| | - Sharon D. Bryant
- Medicinal Chemistry Group, Laboratory of Pharmacology and Chemistry, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Yunden Jinsmaa
- Medicinal Chemistry Group, Laboratory of Pharmacology and Chemistry, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Lawrence H. Lazarus
- Medicinal Chemistry Group, Laboratory of Pharmacology and Chemistry, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Lucia Negri
- Department of Human Physiology and Pharmacology “Vittorio Erspamer,” University La Sapienza, I-00185 Rome, Italy
| | - Elisa Giannini
- Department of Human Physiology and Pharmacology “Vittorio Erspamer,” University La Sapienza, I-00185 Rome, Italy
| | - Roberta Lattanzi
- Department of Human Physiology and Pharmacology “Vittorio Erspamer,” University La Sapienza, I-00185 Rome, Italy
| | - Gianfranco Balboni
- Department of Pharmaceutical Sciences and Biotechnology Center, University of Ferrara, I-44100 Ferrara, Italy
- Department of Toxicology, University of Cagliari, I-09124, Cagliari, Italy
- To whom Correspondence should be addressed. Tel.: +39-532-291-275; Fax: +39-532-291-296; E-mail: ;
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6
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Li T, Shiotani K, Miyazaki A, Fujita Y, Tsuda Y, Ambo A, Sasaki Y, Jinsmaa Y, Marczak E, Bryant SD, Lazarus LH, Okada Y. New series of potent delta-opioid antagonists containing the H-Dmt-Tic-NH-hexyl-NH-R motif. Bioorg Med Chem Lett 2005; 15:5517-20. [PMID: 16183273 DOI: 10.1016/j.bmcl.2005.08.073] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2005] [Revised: 08/20/2005] [Accepted: 08/26/2005] [Indexed: 11/20/2022]
Abstract
Heterodimeric compounds H-Dmt-Tic-NH-hexyl-NH-R (R=Dmt, Tic, and Phe) exhibited high affinity to delta- (K(i)delta=0.13-0.89nM) and mu-opioid receptors (K(i)mu=0.38-2.81nM) with extraordinary potent delta antagonism (pA(2)=10.2-10.4). These compounds represent the prototype for a new class of structural homologues lacking mu-opioid receptor-associated agonism (IC(50)=1.6-5.8muM) based on the framework of bis-[H-Dmt-NH]-alkyl (Okada, Y.; Tsuda, Y.; Fujita, Y.; Yokoi, T.; Sasaki, Y.; Ambo, A.; Konishi, R.; Nagata, M.; Salvadori, S.; Jinsmaa, Y.; Bryant, S. D.; Lazarus, L. H. J. Med. Chem.2003, 46, 3201), which exhibited both high mu affinity and bioactivity.
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Affiliation(s)
- Tingyou Li
- The Graduate School of Food and Medicinal Sciences, Kobe Gakuin University, Nishi-ku, Kobe 651-2180, Japan
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7
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Balboni G, Salvadori S, Guerrini R, Negri L, Giannini E, Bryant SD, Jinsmaa Y, Lazarus LH. Synthesis and opioid activity of N,N-dimethyl-Dmt-Tic-NH-CH(R)-R' analogues: acquisition of potent delta antagonism. Bioorg Med Chem 2004; 11:5435-41. [PMID: 14642588 DOI: 10.1016/j.bmc.2003.09.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
N,N-Dimethylation of the H-Dmt-Tic-NH-CH(R)-R' series of compounds produced no significant affect on the high delta-opioid receptor affinity (K(i)=0.035-0.454 nM), but dramatically decreased that for the micro-opioid receptor. The effect of N-methylation was independent of the length of the linker (R); however, the bioactivities were affected by the chemical composition of the third aromatic group (R'): phenyl (Ph) (5'-8') elicited a greater reduction in micro-affinity (40-70-fold) compared to analogues containing 1H-benzimidazole-2-yl (Bid) (9-fold). The major consequences of N,N-dimethylation on in vitro bioactivity were: (i). a loss of delta-agonism coupled with the appearance of potent delta antagonism (4'-7') (pA(2)=8.14-9.47), while 1 exhibited only a 160-fold decreased delta agonism (1') and the delta antagonism of 8 enhanced >10-fold (pA(2)=10.62, 8'); and (ii). a consistent loss of micro-affinity resulted in enhanced delta-opioid receptor selectivity. With the exception of compound 1', the change in the hydrophobic environment at the N-terminus and formation of a tertiary amine by N,N-dimethylation in analogues of the Dmt-Tic pharmacophore produced potent delta-selective antagonists.
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Affiliation(s)
- Gianfranco Balboni
- Department of Toxicology, University of Cagliary, I-09126, Cagliary, Italy
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8
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Lovekamp T, Cooper PS, Hardison J, Bryant SD, Guerrini R, Balboni G, Salvadori S, Lazarus LH. Inhibition of human multidrug resistance P-glycoprotein 1 by analogues of a potent δ-opioid antagonist. Brain Res 2001; 902:131-4. [PMID: 11376603 DOI: 10.1016/s0006-8993(01)02363-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Analogues Dmt-Tic (2',6'-dimethyl-L-tyrosine-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid) pharmacophore, a potent delta-opioid receptor antagonist, inhibited hMDR1 P-GP expressed in a G-185 fibroblast cell line in a manner similar to verapamil. N,N(Me)2-Dmt-Tic-NH-1-adamantane, H-Dmt-Tic-NH-1-adamantane, H-Dmt-Tic-Ala-NH-1-adamantane and N,N(Me)2-Dmt-Tic-NH-tBut were highly effective inhibitors. Weaker inhibition was observed with N,N(Et)2-Dmt-Tic-OH, H-Dmt-Tic-Ala-NH-tert-butyl amide and cyclo(Dmt-Tic). Results demonstrate that N- and C-terminal hydrophobic/lipophilic analogues of the Dmt-Tic pharmacophore inhibit hMDR1 and point to a potential role as chemosensitizing agents in chemotherapy for cancers containing hMDR1.
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Affiliation(s)
- T Lovekamp
- Peptide Neurochemistry Group, LCBRA, National Institute of Environmental Health Sciences, P.O. Box 12233, Research Triangle Park, NC 27709, USA
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9
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Kertész I, Balboni G, Salvadori S, Lazarus LH, Tóth G. Synthesis of 2′,6′-dimethyltyrosine containing tritiated delta opioid-receptor selective antagonist dipeptide ligands with extraordinary affinity. J Labelled Comp Radiopharm 1999. [DOI: 10.1002/(sici)1099-1344(199812)41:12<1083::aid-jlcr155>3.0.co;2-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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Szatmári I, Tóth G, Kertész I, Schiller PW, Borsodi A. Synthesis and binding characteristics of [3H] H-Tyr-Ticpsi[CH2-NH] Cha-Phe-OH, a highly specific and stable delta-opioid antagonist. Peptides 1999; 20:1079-83. [PMID: 10499425 DOI: 10.1016/s0196-9781(99)00101-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Substitution of the Phe3 aromatic ring in H-Tyr-Ticpsi[CH2-NH]Phe-Phe-OH with cyclohexylalanine (Cha) has been reported to result in a compound, H-Tyr-Ticpsi[CH2-NH]Cha-Phe-OH (TICP[psi]), showing substantially increased delta-opioid antagonist potency and high delta selectivity. TICP[psi] was radiolabeled by catalytic tritiation of its precursor Tyr(3',5'-I2)1TICP[psi]. Binding characteristics of the new tritiated pseudopeptide were determined using the radioligand binding assay in rat brain membranes. On the basis of the results of saturation binding studies performed at 25 degrees C, an equilibrium dissociation constant (Kd) of 0.35 nM and a receptor density (Bmax) of 112 fmol/mg protein were calculated. This new tritiated ligand exhibits high affinity for delta-opioid receptors, whereas its binding to mu and kappa receptors is weak. A study of [H3]TICP[psi] binding displacement by various receptor-selective opioids showed the following rank order of potency: delta > kappa = mu. These receptor binding characteristics of the ligand, together with its high specific radioactivity (41.3 Ci/mmol) and stability, makes it a useful tool for labeling delta-opioid receptors, both in vitro and in vivo.
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Affiliation(s)
- I Szatmári
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged
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11
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Lazarus LH, Bryant SD, Cooper PS, Guerrini R, Balboni G, Salvadori S. Design of δ-opioid peptide antagonists for emerging drug applications. Drug Discov Today 1998. [DOI: 10.1016/s1359-6446(98)01187-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Bryant SD, Salvadori S, Cooper PS, Lazarus LH. New delta-opioid antagonists as pharmacological probes. Trends Pharmacol Sci 1998; 19:42-6. [PMID: 9550939 DOI: 10.1016/s0165-6147(97)01156-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- S D Bryant
- National Institute of Environmental Health Sciences, Research Triangle Park, NC 22709, USA
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13
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Capasso S, Mazzarella L. Activation of diketopiperazine formation by alkylammonium carboxylate salts and aprotic dipolar protophobic solvents. Peptides 1998; 19:389-91. [PMID: 9493873 DOI: 10.1016/s0196-9781(97)00325-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Diketopiperazine formation from the N-terminal residues of a peptide chain is accelerated by aprotic dipolar protophobic solvents and catalyzed in organic solvents by alkylammonium carboxylate salts. The t1/2 for the first-order reaction of H-Ala-Pro-NH2 x TFA falls from 20 d in methanol to 3.6 min in acetonitrile containing 0.02 mol dm(-3) triethylammonium acetate; for H-Ala-Ala-NH2 x TFA in the same reaction media t1/2 falls from an unmeasurably long time to 1.3 d.
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Affiliation(s)
- S Capasso
- Centro di Studio di Biocristallografia, C.N.R., Napoli, Italy.
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14
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Balboni G, Guerrini R, Salvadori S, Tomatis R, Bryant SD, Bianchi C, Attila M, Lazarus LH. Opioid diketopiperazines: synthesis and activity of a prototypic class of opioid antagonists. Biol Chem 1997; 378:19-29. [PMID: 9049061 DOI: 10.1515/bchm.1997.378.1.19] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Discovery of high affinity and ultraselective delta opioid dipeptide antagonists composed of 2',6'-dimethyl-L-tyrosyl (Dmt) and 1,2,3,4-tetrahydroisoquinoline-3-carboxylic (Tic) served as the basis for the conformationally restricted diketopiperazine cyclo(Dmt-Tic) and related open chain analogues. These peptides primarily bind to delta opioid receptors: c(Dmt-Tic) displayed 30- to 50-fold higher delta affinity (Ki delta) than its diastereo-isomeric analogues and more than 4000-fold greater than its Tyr cognate; all of the c(Tyr-Tic) analogues were essentially inactive; c[(N-methyl)Dmt-Tic] lost 5-fold in Ki delta, while Ki mu increased 10-fold to yield a nonselective peptide; and the c(Dmt-Phe) series exhibited considerably reduced binding which indicated a synergism between Dmt and Tic in the binding mechanism. Whereas acetyl-Dmt-Tic linear peptides weakly interacted with opioid receptors, Ac-Dmt-Tic-NH2, exhibited better delta antagonist activity than c(Dmt-Tic) and greater delta receptor selectivity (Ki mu/Ki delta = 570). A three point attachment hypothesis for the interaction between c(Dmt-Tic) and the delta receptor was proposed: hydrophobicity imparted by the aromatic rings and the methyl groups of Dmt, hydrogen bonding through the tyramine hydroxyl group, and cation-pi interactions were suggested as contributing factors in binding the diketopiperazine in the receptor pocket. Although c(Dmt-Tic) exhibited a weak antagonist activity with mouse vas deferens, this diketopiperazine may provide a scaffolding for the formation of more potent antagonists for potential therapeutic applications.
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Affiliation(s)
- G Balboni
- Department of Pharmaceutical Sciences, University of Ferrara, Italy
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