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Selivanova OM, Grishin SY, Glyakina AV, Sadgyan AS, Ushakova NI, Galzitskaya OV. Analysis of Insulin Analogs and the Strategy of Their Further Development. BIOCHEMISTRY (MOSCOW) 2018; 83:S146-S162. [DOI: 10.1134/s0006297918140122] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 07/09/2017] [Indexed: 08/30/2023]
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Žáková L, Kazdová L, Hančlová I, Protivínská E, Šanda M, Buděšínský M, Jiráček J. Insulin Analogues with Modifications at Position B26. Divergence of Binding Affinity and Biological Activity. Biochemistry 2008; 47:5858-68. [DOI: 10.1021/bi702086w] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lenka Žáková
- Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Praha 6, Czech Republic, and Institute for Clinical and Experimental Medicine, Vídeňská 1958/9, 140 21 Praha 4, Czech Republic
| | - Ludmila Kazdová
- Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Praha 6, Czech Republic, and Institute for Clinical and Experimental Medicine, Vídeňská 1958/9, 140 21 Praha 4, Czech Republic
| | - Ivona Hančlová
- Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Praha 6, Czech Republic, and Institute for Clinical and Experimental Medicine, Vídeňská 1958/9, 140 21 Praha 4, Czech Republic
| | - Eva Protivínská
- Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Praha 6, Czech Republic, and Institute for Clinical and Experimental Medicine, Vídeňská 1958/9, 140 21 Praha 4, Czech Republic
| | - Miloslav Šanda
- Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Praha 6, Czech Republic, and Institute for Clinical and Experimental Medicine, Vídeňská 1958/9, 140 21 Praha 4, Czech Republic
| | - Miloš Buděšínský
- Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Praha 6, Czech Republic, and Institute for Clinical and Experimental Medicine, Vídeňská 1958/9, 140 21 Praha 4, Czech Republic
| | - Jiří Jiráček
- Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Praha 6, Czech Republic, and Institute for Clinical and Experimental Medicine, Vídeňská 1958/9, 140 21 Praha 4, Czech Republic
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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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