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Bansal R, Suryan A. A Comprehensive Review on Steroidal Bioconjugates as Promising Leads in Drug Discovery. ACS BIO & MED CHEM AU 2022; 2:340-369. [PMID: 37102169 PMCID: PMC10125316 DOI: 10.1021/acsbiomedchemau.1c00071] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ever increasing unmet medical requirements of the human race and the continuous fight for survival against variety of diseases give birth to novel molecules through research. As diseases evolve, different strategies are employed to counter the new challenges and to discover safer, more effective, and target-specific therapeutic agents. Among several novel approaches, bioconjugation, in which two chemical moieties are joined together to achieve noticeable results, has emerged as a simple and convenient technique for a medicinal chemist to obtain potent molecules. The steroid system has been extensively used as a privileged scaffold gifted with significantly diversified medicinal properties in the drug discovery and development process. Steroidal molecules are preferred for their rigidness and good ability to penetrate biological membranes. Slight alteration in the basic ring structure results in the formation of steroidal derivatives with a wide range of therapeutic activities. Steroids are not only active as such, conjugating them with various biologically active moieties results in increased lipophilicity, stability, and target specificity with decreased adverse effects. Thus, the steroid nucleus prominently behaves as a biological carrier for small molecules. The steroid bioconjugates offer several advantages such as synergistic activity with fewer side effects due to reduced dose and selective therapy. The steroidal bioconjugates have been widely explored for their usefulness against various disorders and have shown significant utility as anticancer, anti-inflammatory, anticoagulant, antimicrobial, insecticidal/pesticidal, antioxidant, and antiviral agents along with several other miscellaneous activities. This work provides a comprehensive review on the therapeutic progression of steroidal bioconjugates as medicinally active molecules. The review covers potential biological applications of steroidal bioconjugates and would benefit the wider scientific community in their drug discovery endeavors.
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Affiliation(s)
- Ranju Bansal
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
| | - Amruta Suryan
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
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2
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Sharma R, Vijay A, Mukherjee A, Talukdar P. Bis(cholyl)-based chloride channels with oxalamide and hydrazide selectivity filters. Org Biomol Chem 2022; 20:2054-2058. [DOI: 10.1039/d1ob02028e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the development of supramolecular bis(cholyl) ion channels by using oxalamide and hydrazide as selectivity filters. The hydrazide system displayed superior chloride transport activity than oxalamide via the formation...
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Malla JA, Roy A, Talukdar P. Anion Selective Ion Channel Constructed from a Self-Assembly of Bis(cholate)-Substituted Fumaramide. Org Lett 2018; 20:5991-5994. [DOI: 10.1021/acs.orglett.8b02115] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Javid Ahmad Malla
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Pune, 411008, India
| | - Arundhati Roy
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Pune, 411008, India
| | - Pinaki Talukdar
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Pune, 411008, India
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Özdemir Z, Bildziukevich U, Šaman D, Havlíček L, Rárová L, Navrátilová L, Wimmer Z. Amphiphilic derivatives of (3β,17β)-3-hydroxyandrost-5-ene-17-carboxylic acid. Steroids 2017; 128:58-67. [PMID: 29100780 DOI: 10.1016/j.steroids.2017.10.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 10/26/2017] [Indexed: 01/09/2023]
Abstract
A series of amphiphilic derivatives of (3β,17β)-3-hydroxyandrost-5-ene-17-carboxylic acid (1) with the polyamine spermine and three other diamines, 1,2-diaminoethane, piperazine and cadaverine, were synthesized and their antimicrobial activity and cytotoxicity were investigated. Among the target compounds, several ones showed antimicrobial activity on Gram positive and Gram negative microorganisms. The most active compounds were 20 (Streptococcus mutans CCM 7409, 3.125 µM), 16 (Streptococcus mutans CCM 7409, 12.5 µM) and 10d (Escherichia coli CCM 3954, 12.5 µM). In addition, compounds 5d, 10d, 13 and 20 displayed cytotoxicity on CEM (12.1 ± 2.1 µM, 7.6 ± 1.0 µM, 19.0 ± 0.4 µM and 5.9 ± 0.7 µM, respectively). Two additional compounds displayed medium cytotoxicity on CEM, 5a (34.6 ± 5.2 µM) and 5c (37.7 ± 5.9 µM). The compound 13 and 20 displayed high toxicity also on normal fibroblasts.
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Affiliation(s)
- Zülal Özdemir
- University of Chemistry and Technology, Prague, Department of Chemistry of Natural Compounds, Technická 5, 16628 Prague 6, Czech Republic; Institute of Experimental Botany AS CR, v.v.i., Isotope Laboratory, Vídeňská 1083, 14220 Prague 4, Czech Republic
| | - Uladzimir Bildziukevich
- University of Chemistry and Technology, Prague, Department of Chemistry of Natural Compounds, Technická 5, 16628 Prague 6, Czech Republic; Institute of Experimental Botany AS CR, v.v.i., Isotope Laboratory, Vídeňská 1083, 14220 Prague 4, Czech Republic
| | - David Šaman
- Institute of Organic Chemistry and Biochemistry AS CR, v.v.i., Flemingovo náměstí 2, 16610 Prague 6, Czech Republic
| | - Libor Havlíček
- Institute of Experimental Botany AS CR, v.v.i., Isotope Laboratory, Vídeňská 1083, 14220 Prague 4, Czech Republic
| | - Lucie Rárová
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Lucie Navrátilová
- Department of Microbiology, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 77515 Olomouc, Czech Republic
| | - Zdeněk Wimmer
- University of Chemistry and Technology, Prague, Department of Chemistry of Natural Compounds, Technická 5, 16628 Prague 6, Czech Republic; Institute of Experimental Botany AS CR, v.v.i., Isotope Laboratory, Vídeňská 1083, 14220 Prague 4, Czech Republic.
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Choi BS, Choi J, Bak S, Koo S. Regioselective Synthesis of 1,3- and 1,2-Tocopheryl Glyceride Ethers of Carboxylic Acids. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403267] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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6
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Brown JRD, Pintre IC, Webb SJ. Fructose controlled ionophoric activity of a cholate-boronic acid. Org Biomol Chem 2014; 12:2576-83. [PMID: 24615337 DOI: 10.1039/c4ob00165f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Wulff-type boronic acids have been shown to act as ionophores at pH 8.2 by transporting Na(+) through phospholipid bilayers. A cholate-boronic acid conjugate was synthesised and shown to be an ionophore, although the hydroxyl-lined face of the cholate moiety did not enhance ion transport. Mechanistic studies suggested a carrier mechanism for Na(+) transport. The addition of fructose (>5 mM) strongly inhibited ionophoric activity of the cholate-boronic acid conjugate, mirrored by a strong decrease in the ability of this compound to partition into an organic phase. Modelling of the partitioning and ion transport data, using a fructose/boronic acid binding constant measured at pH 8.2, showed a good correlation with the extent of fructose/boronic acid complexation and suggested high polarity fructose/boronic acid complexes are poor ionophores. The sensitivity of ion transport to fructose implies that boronic acid-based antibiotic ionophores with activity modulated by polysaccharides in the surrounding environment may be accessible.
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Affiliation(s)
- James R D Brown
- Manchester Institute of Biotechnology (MIB) and School of Chemistry, University of Manchester, 131 Princess St., Manchester M1 7DN, UK.
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Cui H, He G, Wang H, Sun X, Liu T, Ding L, Fang Y. Fabrication of a novel cholic acid modified OPE-based fluorescent film and its sensing performances to inorganic acids in acetone. ACS APPLIED MATERIALS & INTERFACES 2012; 4:6935-6941. [PMID: 23148745 DOI: 10.1021/am302069p] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A self-assembled monolayer (SAM)-based fluorescent film was designed and prepared by chemical immobilization of a novel oligo(p-phenylene- ethynylene) (OPE) with cholic acid moieties at the ends of its side chains (Film 1). As a control, a similar film, Film 2, of which OPE brings no side chains, was also prepared. The structures of the films were characterized by contact angle, XPS, ATR-IR and fluorescence measurements. Fluorescence studies revealed that the emission of Film 1 is sensitive to the presence of trace amount of some inorganic acids in acetone, such as HCl, H(2)SO(4), HNO(3), and H(3)PO(4), etc., whereas the acids as studied showed little effect on the emission of Film 2. The difference in the sensing performances of the two films have been rationalized by considering presence or absence of a possible cavity, a substructure appearing above the OPE adlayer which is something like a dimer of cholic acid (CholA) formed at specific environment.
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Affiliation(s)
- Hong Cui
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, PR China
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Lang KL, Silva IT, Zimmermann LA, Lhullier C, Mañalich Arana MV, Palermo JA, Falkenberg M, Simões CMO, Schenkel EP, Durán FJ. Cytotoxic activity of semi-synthetic derivatives of elatol and isoobtusol. Mar Drugs 2012; 10:2254-2264. [PMID: 23170082 PMCID: PMC3497021 DOI: 10.3390/md10102254] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 09/12/2012] [Accepted: 10/01/2012] [Indexed: 11/09/2022] Open
Abstract
In the present study, the in vitro cytotoxic effects of six semi-synthetic derivatives of elatol (1) and isoobtusol (2) were investigated. Chemical modifications were performed on the hydroxyl groups aiming to get derivatives of different polarity, namely the hemisuccinate, carbamate and sulfamate. The structural elucidation of the new derivatives was based on detailed NMR and MS spectroscopic analyses. The in vitro cytotoxicity of compounds 1 to 8 was evaluated against A459 and RD tumor cell lines with CC50 values ranging from 4.93 to 41.53 µM. These results suggest that the structural modifications performed on both compounds could be considered a good strategy to obtain more active derivatives.
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Affiliation(s)
- Karen L. Lang
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil; (I.T.S.); (L.A.Z.); (C.L.); (M.F.); (C.M.O.S.); (E.P.S.)
- Author to whom correspondence should be addressed; ; Tel.: +55-48-37215076; Fax: +55-48-37219350
| | - Izabella T. Silva
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil; (I.T.S.); (L.A.Z.); (C.L.); (M.F.); (C.M.O.S.); (E.P.S.)
| | - Lara A. Zimmermann
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil; (I.T.S.); (L.A.Z.); (C.L.); (M.F.); (C.M.O.S.); (E.P.S.)
| | - Cíntia Lhullier
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil; (I.T.S.); (L.A.Z.); (C.L.); (M.F.); (C.M.O.S.); (E.P.S.)
| | - Maria V. Mañalich Arana
- Department of Organic Chemistry, University of Buenos Aires, Buenos Aires, C1428EGA, Argentina; (M.V.M.A.); (J.A.P.); (F.J.D.)
| | - Jorge A. Palermo
- Department of Organic Chemistry, University of Buenos Aires, Buenos Aires, C1428EGA, Argentina; (M.V.M.A.); (J.A.P.); (F.J.D.)
| | - Miriam Falkenberg
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil; (I.T.S.); (L.A.Z.); (C.L.); (M.F.); (C.M.O.S.); (E.P.S.)
| | - Cláudia M. O. Simões
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil; (I.T.S.); (L.A.Z.); (C.L.); (M.F.); (C.M.O.S.); (E.P.S.)
| | - Eloir P. Schenkel
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil; (I.T.S.); (L.A.Z.); (C.L.); (M.F.); (C.M.O.S.); (E.P.S.)
| | - Fernando J. Durán
- Department of Organic Chemistry, University of Buenos Aires, Buenos Aires, C1428EGA, Argentina; (M.V.M.A.); (J.A.P.); (F.J.D.)
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9
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Chui JKW, Fyles TM. Ionic conductance of synthetic channels: analysis, lessons, and recommendations. Chem Soc Rev 2012; 41:148-75. [DOI: 10.1039/c1cs15099e] [Citation(s) in RCA: 141] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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10
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Chen WH. A fine line between unimolecular and bimolecular pores formed from poly(choloyl) conjugates with a rigid core. RSC Adv 2012. [DOI: 10.1039/c2ra20121f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Maslov MA, Morozova NG, Solomatina TV, Shaforostova NG, Serebrennikova GA. Synthesis of amino analogues of cholic acid. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2011; 37:567-76. [DOI: 10.1134/s1068162011040078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Maslov MA, Morozova NG, Solomatina TV, Sergeeva OA, Cheshkov DA, Serebrennikova GA. Synthesis of cholic acid amino analogues by oxime reduction with TiCl3–NaBH3CN. MENDELEEV COMMUNICATIONS 2011. [DOI: 10.1016/j.mencom.2011.04.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Wilson CP, Boglio C, Ma L, Cockroft SL, Webb SJ. Palladium(II)-Mediated Assembly of Biotinylated Ion Channels. Chemistry 2011; 17:3465-73. [DOI: 10.1002/chem.201002031] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2010] [Revised: 10/12/2010] [Indexed: 11/10/2022]
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Chhun C, Schmitzer AR. A pseudorotaxane umbrella thread with chloride transmembrane transport properties. MEDCHEMCOMM 2011. [DOI: 10.1039/c1md00128k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Abstract
Germination of Clostridium difficile spores is the first required step in establishing C. difficile-associated disease (CDAD). Taurocholate (a bile salt) and glycine (an amino acid) have been shown to be important germinants of C. difficile spores. In the present study, we tested a series of glycine and taurocholate analogs for the ability to induce or inhibit C. difficile spore germination. Testing of glycine analogs revealed that both the carboxy and amino groups are important epitopes for recognition and that the glycine binding site can accommodate compounds with more widely separated termini. The C. difficile germination machinery also recognizes other hydrophobic amino acids. In general, linear alkyl side chains are better activators of spore germination than their branched analogs. However, L-phenylalanine and L-arginine are also good germinants and are probably recognized by distinct binding sites. Testing of taurocholate analogs revealed that the 12-hydroxyl group of taurocholate is necessary, but not sufficient, to activate spore germination. In contrast, the 6- and 7-hydroxyl groups are required for inhibition of C. difficile spore germination. Similarly, C. difficile spores are able to detect taurocholate analogs with shorter, but not longer, alkyl amino sulfonic acid side chains. Furthermore, the sulfonic acid group can be partially substituted with other acidic groups. Finally, a taurocholate analog with an m-aminobenzenesulfonic acid side chain is a strong inhibitor of C. difficile spore germination. In conclusion, C. difficile spores recognize both amino acids and taurocholate through multiple interactions that are required to bind the germinants and/or activate the germination machinery.
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Abstract
A homologous series of pore-forming amphiphiles (PFAs), derived from cholic acid, lysine, and spermine, have been used as "thermal gates" for releasing sucrose from liposomes made from 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and 1,2-dipalmitoyl-sn-glycero-3-[phospho-rac-(1-glycerol)] (sodium salt) [DPPG]. Binding measurements have established that these PFAs are fully bound to these liposomes in their gel state and that their transfer to fluid phase membranes is negligible. Release experiments have shown that thermal gating is sensitive to both the size and the concentration of the PFA that are used. Increases in the extent of release of sucrose with increasing temperature that have been found in the gel/fluid coexistence region indicate the existence of heterogeneity among the liposomes.
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Affiliation(s)
- Ravil R Petrov
- Department of Chemistry, Lehigh University, Bethlehem, PA 18015, USA
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17
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Wang W, Li R, Gokel G. Membrane-Length Amphiphiles Exhibiting Structural Simplicity and Ion Channel Activity. Chemistry 2009; 15:10543-53. [DOI: 10.1002/chem.200900898] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Convenient synthesis of polycationic amphiphiles by the Fukuyama reaction. MENDELEEV COMMUNICATIONS 2009. [DOI: 10.1016/j.mencom.2009.09.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Design and synthesis of bile acid-based amino sterols as antimicrobial agents. Bioorg Med Chem Lett 2009; 19:5411-4. [DOI: 10.1016/j.bmcl.2009.07.117] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2009] [Revised: 07/07/2009] [Accepted: 07/24/2009] [Indexed: 11/18/2022]
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Burns MR, Graminski GF, Weeks RS, Chen Y, O'Brien TG. Lipophilic lysine-spermine conjugates are potent polyamine transport inhibitors for use in combination with a polyamine biosynthesis inhibitor. J Med Chem 2009; 52:1983-93. [PMID: 19281226 DOI: 10.1021/jm801580w] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cancer cells can overcome the ability of polyamine biosynthesis inhibitors to completely deplete their internal polyamines by the importation of polyamines from external sources. This paper discusses the development of a group of lipophilic polyamine analogues that potently inhibit the cellular polyamine uptake system and greatly increase the effectiveness of polyamine depletion when used in combination with DFMO, a well-studied polyamine biosynthesis inhibitor. The attachment of a length-optimized C(16) lipophilic substituent to the epsilon-nitrogen atom of an earlier lead compound, D-Lys-Spm (5), has produced an analogue, D-Lys(C(16)acyl)-Spm (11) with several orders of magnitude more potent cell growth inhibition on a variety of cultured cancer cell types including breast (MDA-MB-231), prostate (PC-3), melanoma (A375), and ovarian (SK-OV-3), among others. These results are discussed in the context of a possible membrane-catalyzed interaction with the extracellular polyamine transport apparatus. The resulting novel two-drug combination therapy targeting cellular polyamine metabolism has shown exceptional efficacy against cutaneous squamous cell carcinomas (SCC) in a transgenic ornithine decarboxylase (ODC) mouse model of skin cancer. A majority (88%) of large, aggressive SCCs exhibited complete or nearly complete remission to this combination therapy, whereas responses to each agent alone were poor. The availability of a potent polyamine transport inhibitor allows, for the first time, for a real test of the hypothesis that starving cells of polyamines will lead to objective clinical response.
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Affiliation(s)
- Mark R Burns
- MediQuest Therapeutics, Inc, Bothell, Washington 98021, USA.
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Slavíková B, Krištofíková Z, Chodounská H, Buděšínský M, Durán FJ, Veleiro AS, Burton G, Kasal A. Allopregnanolone (3α-Hydroxy-5α-pregnan-20-one) Derivatives with a Polar Chain in Position 16α: Synthesis and Activity. J Med Chem 2009; 52:2119-25. [DOI: 10.1021/jm801454a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Barbora Slavíková
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, CZ16610 Prague 6, Czech Republic, Prague Psychiatric Centre, Ústavní 91, CZ18103 Prague, Czech Republic, and Departamento de Química Orgánica and UMYMFOR (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina
| | - Zdena Krištofíková
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, CZ16610 Prague 6, Czech Republic, Prague Psychiatric Centre, Ústavní 91, CZ18103 Prague, Czech Republic, and Departamento de Química Orgánica and UMYMFOR (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina
| | - Hana Chodounská
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, CZ16610 Prague 6, Czech Republic, Prague Psychiatric Centre, Ústavní 91, CZ18103 Prague, Czech Republic, and Departamento de Química Orgánica and UMYMFOR (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina
| | - Miloš Buděšínský
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, CZ16610 Prague 6, Czech Republic, Prague Psychiatric Centre, Ústavní 91, CZ18103 Prague, Czech Republic, and Departamento de Química Orgánica and UMYMFOR (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina
| | - Fernando J. Durán
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, CZ16610 Prague 6, Czech Republic, Prague Psychiatric Centre, Ústavní 91, CZ18103 Prague, Czech Republic, and Departamento de Química Orgánica and UMYMFOR (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina
| | - Adriana S. Veleiro
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, CZ16610 Prague 6, Czech Republic, Prague Psychiatric Centre, Ústavní 91, CZ18103 Prague, Czech Republic, and Departamento de Química Orgánica and UMYMFOR (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina
| | - Gerardo Burton
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, CZ16610 Prague 6, Czech Republic, Prague Psychiatric Centre, Ústavní 91, CZ18103 Prague, Czech Republic, and Departamento de Química Orgánica and UMYMFOR (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina
| | - Alexander Kasal
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, CZ16610 Prague 6, Czech Republic, Prague Psychiatric Centre, Ústavní 91, CZ18103 Prague, Czech Republic, and Departamento de Química Orgánica and UMYMFOR (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina
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Wang W, Li R, Gokel GW. “Aplosspan:” a bilayer-length, ion-selective ionophore that functions in phospholipid bilayers. Chem Commun (Camb) 2009:911-3. [DOI: 10.1039/b816819a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Li Y, Li G, Wang X, Lin C, Zhang Y, Ju Y. Poly(p-phenylene ethynylene)s with Facially Amphiphilic Pendant Groups: Solvatochromism and Supramolecular Assemblies. Chemistry 2008; 14:10331-9. [DOI: 10.1002/chem.200800986] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Vatmurge NS, Hazra BG, Pore VS, Shirazi F, Deshpande MV, Kadreppa S, Chattopadhyay S, Gonnade RG. Synthesis and biological evaluation of bile acid dimers linked with 1,2,3-triazole and bis-beta-lactam. Org Biomol Chem 2008; 6:3823-30. [PMID: 18843413 DOI: 10.1039/b809221d] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report herein the synthesis and biological evaluation of bile acid dimers linked through 1,2,3-triazole and bis-beta-lactam. The dimers were synthesized using 1,3-dipolar cycloaddition reaction of diazido bis-beta-lactams , and terminal alkynes derived from cholic acid/deoxycholic acid in the presence of Cu(i) catalyst (click chemistry). These novel molecules were evaluated in vitro for their antifungal and antibacterial activity. Most of the compounds exhibited significant antifungal as well as antibacterial activity against all the tested fungal and bacterial strains. Moreover, their in vitro cytotoxicities towards HEK-293 and MCF-7 cells were also established.
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Affiliation(s)
- Namdev S Vatmurge
- Division of Organic Chemistry, National Chemical Laboratory, Pune, 411008, India
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Ishibashi A, Nakashima N. Individual Dissolution of Single-Walled Carbon Nanotubes in Aqueous Solutions of Steroid or Sugar Compounds and Their Raman and Near-IR Spectral Properties. Chemistry 2006; 12:7595-602. [PMID: 16927276 DOI: 10.1002/chem.200600326] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The individual solubilization of single-walled carbon nanotubes (SWNTs), achieved by using ten different anionic-, zwitterionic-, and nonionic-steroid biosurfactants and three different sugar biosurfactants, was examined. Aqueous micelles of anionic cholate analogues, such as sodium cholate (SC), sodium deoxycholate (SDC), sodium taurocholate (STC), sodium taurodeoxycholate (STDC), sodium glycocholate (SGC), as well as N,N-bis(3-D-gluconamidopropyl)cholamide (BIGCHAP) and N,N-bis(3-D-gluconamidopropyl)deoxycholamide (deoxy-BIGCHAP), exhibited good abilities to dissolve the SWNTs individually. Aqueous micelles of nonionic biosurfactants, such as sucrose monocholate (SMC), n-octyl-beta-D-glucoside (OG), n-decyl-beta-D-maltoside (DM), and n-decanoyl-N-methylglucamide (MEGA-10), could dissolve the SWNTs, however, the solubilization abilities were weaker than those of the anionic cholate analogues. In sharp contrast, the solubilization abilities of the zwitterionic micelles of 3-[(3-cholamidopropyl)dimethylammonio]propanesulfonic acid (CHAPS) and 3-[(3-cholamidopropyl)dimethylammonio]-2-hydroxypropanesulfonic acid (CHAPSO) were very low, and almost zero for OG. It is evident that the chemical structures, in particular the substituent groups of the surfactants, play an important role in the solubilization of SWNTs. The near-IR photoluminescence behaviors of the SWNTs dissolved in aqueous micelles and in 1 mM biosurfactants were investigated. The chirality indices of the SWNTs dissolved in these solutions depend on the chemical structures of the biosurfactants. The Raman spectra of the SWNTs dissolved in a 1 mM solution of SC suggest the selective extraction of the metallic SWNTs. Finally, a possible solubilization mechanism using steroid surfactants is described. The SWNTs dissolved individually in water-containing biocompounds are useful in many areas of nano- and materials chemistry.
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Affiliation(s)
- Ayumi Ishibashi
- Department of Applied Chemistry Graduate School of Engineering, Kyushu University 744 Motooka, Fukuoka 819-0395, Japan
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Winschel CA, Kalidindi A, Zgani I, Magruder JL, Sidorov V. Receptor for Anionic Pyrene Derivatives Provides the Basis for New Biomembrane Assays. J Am Chem Soc 2005; 127:14704-13. [PMID: 16231924 DOI: 10.1021/ja052397i] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This study describes a new receptor cyclen 1 capable of strong selective binding of pyrene-based anionic dyes under near-physiological conditions. This receptor comprises four naphthylthiourea groups tethered to a cyclen core via an ester linkage. The complexation behavior of cyclen 1 receptor is characterized by a series of (1)H NMR, microcalorimetry, UV-vis, and fluorometry experiments. The relevance of structural features of this receptor to its recognition function is assessed using control compounds that lack some of the groups found in cyclen 1. The specificity of cyclen 1 toward pyrene-based dyes is assessed through experiments using dyes with different molecular organization. The most important finding was the ability of cyclen 1 to bind efficiently to a pH-sensitive dye pyranine, a dye that is commonly used in various biomembrane assays. The high affinity of cyclen 1 to pyranine, its impermeability to the lipid bilayer membrane, fast kinetics of binding, and ability to quench the pyranine's fluorescence were used as a basis for a new membrane leakage assay. This membrane leakage assay is fully compatible with the commonly applied pH-stat transport assay, and therefore it allows for differentiation of the ion transport and nonselective leakage mechanisms within a single set of experiments. The ability of cyclen 1 to quench the fluorescence of pyranine also finds limited applicability to the detection of endovesiculation.
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Affiliation(s)
- Christine A Winschel
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006, USA
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Jing B, Janout V, Herold BC, Klotman ME, Heald T, Regen SL. Persulfated molecular umbrellas as anti-HIV and anti-HSV agents. J Am Chem Soc 2005; 126:15930-1. [PMID: 15584704 DOI: 10.1021/ja044400o] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of persulfated molecular umbrellas have been synthesized from putrescine, spermidine, spermine, lysine, and cholic acid (1a, 2a, 3a, 4a, and 5a) and their anti-HIV and anti-HSV activities determined. Despite it size, the most active of these conjugates (5a) was able to cross phospholipid bilayers made from 1-palmitoyl-2-oleyol-sn-glycero-3-phosphocholine (POPC) and 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphatidylglycerol (POPG). The unique combination of anti-viral activity, an ability to cross hydrophobic barriers, a lack of cytotoxicity, and a simple three-step synthesis from biogenic starting material suggests that 5a and related conjugates may be exploitable as a novel class of anti-viral agents for systemic and topical applications.
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Affiliation(s)
- Bingwen Jing
- Department of Chemistry, Lehigh University, Bethlehem, Pennsylvania 18015, USA
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Ropponen J, Tamminen J, Lahtinen M, Linnanto J, Rissanen K, Kolehmainen E. Synthesis, Characterization, and Thermal Behavior of Steroidal Dendrons. European J Org Chem 2005. [DOI: 10.1002/ejoc.200400416] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Virtanen E, Kolehmainen E. Use of Bile Acids in Pharmacological and Supramolecular Applications. European J Org Chem 2004. [DOI: 10.1002/ejoc.200300699] [Citation(s) in RCA: 174] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Elina Virtanen
- Department of Chemistry, University of Jyväskylä, P. O. Box 35, 40014 University of Jyväskylä, Finland, Fax: (internat.) +358‐14‐260‐2501
| | - Erkki Kolehmainen
- Department of Chemistry, University of Jyväskylä, P. O. Box 35, 40014 University of Jyväskylä, Finland, Fax: (internat.) +358‐14‐260‐2501
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Biron E, Otis F, Meillon JC, Robitaille M, Lamothe J, Van Hove P, Cormier ME, Voyer N. Design, synthesis, and characterization of peptide nanostructures having ion channel activity. Bioorg Med Chem 2004; 12:1279-90. [PMID: 15018900 DOI: 10.1016/j.bmc.2003.08.037] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2003] [Revised: 07/31/2003] [Accepted: 08/01/2003] [Indexed: 11/24/2022]
Abstract
We report the synthesis and the functional studies of multiple crown alpha-helical peptides designed to form artificial ion channels. The approach combines the versatility of solid phase peptide synthesis, the conformational predictability of peptidic molecules, and the solution synthesis of crown ethers with engineerable ion-binding abilities. Several biophysical methods were employed to characterize the activity and the mode of action of these crown peptide nanostructures. The 21 residue peptides bearing six 21-EC-7 turned out to facilitate the translocation of ions in a similar fashion to natural ion channels.
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Affiliation(s)
- Eric Biron
- Département de chimie and Centre de recherche sur la fonction, la structure et l'ingénierie des protéines, Faculté des sciences et de génie, Université Laval, Québec, Canada G1K 7P4
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Zhang J, Jing B, Regen SL. Kinetic Evidence for the Existence and Mechanism of Formation of a Barrel Stave Structure from Pore-Forming Dendrimers. J Am Chem Soc 2003; 125:13984-7. [PMID: 14611234 DOI: 10.1021/ja036390h] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A dendritic approach to the construction of a homologous series of pore-forming amphiphiles has been developed, based on the use of spermidine, spermine, lysine, and cholic acid. A kinetic analysis of Na+ transport across bilayers of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine by three dendritic amphiphiles has provided the strongest evidence to date for a barrel stave structure.
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Affiliation(s)
- Jianbing Zhang
- Department of Chemistry, Lehigh University, Bethlehem, PA 18015, USA
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Abstract
An increasing number of synthetic compounds have been shown to facilitate ion and polar molecule transport across bilayer membranes. Most notably, recent advances in anion transport have yielded synthetic chloride channels and phospholipid translocases. Attention has also turned to the ability of short amino acid sequences to transport peptides and proteins across cellular membranes.
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Affiliation(s)
- J Middleton Boon
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
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Bandyopadhyay P, Bandyopadhyay P, Regen SL. Ion conductors derived from biogenic amines, bile acids, and amino acids. Bioconjug Chem 2002; 13:1314-8. [PMID: 12440868 DOI: 10.1021/bc0255539] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A family of conjugates has been synthesized from spermine, putrescine, lysine, gamma-aminobutyric acid, sarcosine, cholic acid, glycocholic acid, 3alpha,7alpha-dihydroxycholic acid, and 3alpha,12alpha-dihydroxycholic acid, based on a design principle previously reported (Bandyopadhyay, P., Janout, V., Zhang, L., Regen, S. L. (2001) J. Am. Chem. Soc. 123, 7691). Each of these conjugates was found to exhibit significant activity in promoting the transport of Na(+) across liposomal membranes derived from 1,2-dimyristoleoyl-sn-glycero-3-phosphocholine, and also from 1,2-dipalmitoleoyl-sn-glycero-3-phosphocholine. In all cases, plots of pseudo first-order rate constants, k(obsd) vs (mol % of ion conductor)(2) were found to be linear, indicating that transport-active dimers are involved and that only a small fraction of the conjugates are in an aggregated form. An operational comparison that has been made within this series of conjugates indicates that Na(+) transport activity and membrane selectivity have a moderate dependency on the composition and the structure of the ion conductor.
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Affiliation(s)
- Punam Bandyopadhyay
- Department of Chemistry, Lehigh University, Bethlehem, Pennsylvania 18015, USA
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Bandyopadhyay P, Bandyopadhyay P, Regen SL. An ion conductor that recognizes osmotically-stressed phospholipid bilayers. J Am Chem Soc 2002; 124:11254-5. [PMID: 12236724 DOI: 10.1021/ja026895s] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A synthetic ion conductor (1), derived from cholic acid and spermine, has been found capable of recognizing osmotic stress in liposomes made from 1,2-dipalmitoleoyl-sn-glycero-3-phosphocholine [(C16:1)PC]. Thus, when large unilamellar vesicles of (C16:1)PC are placed under hypotonic conditions, the Na+/Li+ transport activity of 1 increases by as much as 1 order of magnitude, relative to isotonic conditions
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Das G, Matile S. Transmembrane pores formed by synthetic p-octiphenyl beta-barrels with internal carboxylate clusters: regulation of ion transport by pH and Mg(2+)- complexed 8-aminonaphthalene-1,3,6-trisulfonate. Proc Natl Acad Sci U S A 2002; 99:5183-8. [PMID: 11891277 PMCID: PMC122743 DOI: 10.1073/pnas.022547899] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2001] [Indexed: 11/18/2022] Open
Abstract
Design, synthesis, and study of a synthetic barrel-stave supramolecule with p-octiphenyl "staves," beta-sheet "hoops," and hydrophobic exterior as well as internal carboxylate clusters are reported. Ion transport experiments indicate the formation of transmembrane pores at 5 < pH < 7 with nanomolar activity. Blockage of dye efflux from spherical bilayers by external Mg(OAc)(2) and internal 8-aminonaphthalene-1,3,6-trisulfonate is suggestive for weakly cooperative (n = 1.16) formation of aspartate-Mg(2+)-8-aminonaphthalene-1,3,6-trisulfonate complexes within the barrel-stave supramolecule (K(D) = 2.9 mM). Corroborative evidence from structural studies by circular dichroism spectroscopy is provided and discussed with emphasis of the importance of internal charge repulsion for pore formation and future applications toward binding and catalysis within supramolecular synthetic pores.
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Affiliation(s)
- Gopal Das
- Department of Organic Chemistry, University of Geneva, CH-1211 Geneva, Switzerland
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The synthesis and membrane activity of linear oligoester, ester-Amide, and oligoamide bolaamphiphiles. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s1472-7862(02)00025-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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