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Kupryushkin MS, Pyshnyi DV. Oligonucleotide derivatives in nucleic acid hybridization analysis. III. Synthesis and investigation of properties of oligonucleotides, bearing bifunctional non-nucleotide insertion. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2012. [DOI: 10.1134/s106816201206009x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ren Y, Wang Y, Zhang Y, Wei D. Overcoming multidrug resistance in human carcinoma cells by an antisense oligodeoxynucleotide--doxorubicin conjugate in vitro and in vivo. Mol Pharm 2008; 5:579-87. [PMID: 18461970 DOI: 10.1021/mp800001j] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Multidrug resistance (MDR), a major obstacle to successful cancer chemotherapy, may be induced by amplification of the MDR1 gene and overexpression of the P-glycoprotein (P-gp), which acts as drug efflux pump decreasing intracellular drug accumulation. In this study, an antisense oligodeoxynucleotide--doxorubicin conjugate was used to overcome MDR in a human carcinoma-resistant cell line, both in vitro and in vivo, through downregulation of P-gp expression and mRNA levels. Compared with the unmodified antisense-oligodeoxynucleotide (AS-ODN), the conjugate markedly inhibited P-gp expression and mRNA levels. With in vitro treatment with the conjugate, the intracellular accumulation of doxorubicin (DOX) was increased 4.4-fold compared to treatment with DOX alone; by contrast, a 2.2-fold increase was observed when treated with AS-ODN alone. In the in vivo studies, it was approximately 3.5-fold higher compared to the control group treatment with DOX alone and 2.1-fold higher than found with AS-ODN. The weight of tumors formed was markedly decreased after conjugate treatment as compared to either treatments with AS-ODN or DOX alone. Furthermore, treatment with combinations of the agents appeared to be well tolerated. These results suggest that a strategy using the conjugate in combination with antitumor drugs may comprise a powerful treatment for MDR.
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Affiliation(s)
- Yuhong Ren
- State Key Laboratory of Bioreactor Engineering, Institute of Biochemistry, East China University of Science and Technology, Shanghai, China.
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Ren Y, Wei D, Liu J, Zhan X. Study of the Stability of Oligodeoxynucleotide–Doxorubicin Conjugate In Vitro and Its Pharmacokinetics In Vivo by RP‐HPLC. J LIQ CHROMATOGR R T 2006. [DOI: 10.1081/jlc-120025427] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Yuhong Ren
- a State Key Laboratory of Bioreactor Engineering, Institute of Biochemistry , East China University of Science and Technology , 130 Meilong Road, Shanghai, 200237, P.R. China
- b Jiangxi‐OAI Gemeinsames Institute , Nanchang, P.R. China
| | - Dongzhi Wei
- a State Key Laboratory of Bioreactor Engineering, Institute of Biochemistry , East China University of Science and Technology , 130 Meilong Road, Shanghai, 200237, P.R. China
| | - Jianwen Liu
- a State Key Laboratory of Bioreactor Engineering, Institute of Biochemistry , East China University of Science and Technology , 130 Meilong Road, Shanghai, 200237, P.R. China
| | - Xiaoyun Zhan
- a State Key Laboratory of Bioreactor Engineering, Institute of Biochemistry , East China University of Science and Technology , 130 Meilong Road, Shanghai, 200237, P.R. China
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Ren Y, Wei D. Quantification intracellular levels of oligodeoxynucleotide-doxorubicin conjugate in human carcinoma cells in situ. J Pharm Biomed Anal 2005; 36:387-91. [PMID: 15496334 DOI: 10.1016/j.jpba.2004.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2004] [Revised: 06/16/2004] [Accepted: 06/16/2004] [Indexed: 10/26/2022]
Abstract
Bifunctional oligodeoxynucleotide-intercalator conjugates provide new tools for a selective control of gene expression and may have potential applications as novel therapeutic agents. An 'in situ' analysis method has been developed to determine intracellular levels of oligodeoxynucleotide- doxorubicin conjugate which may be used to reverse the multidrug resistance in KB-A-1 cells. A linear response over a broad concentration range (0.05-6.0 microM, r2 = 0.97) was obtained. The limit of detection and quantitation was set at 0.015 and 0.05 microM, respectively. Assay validation studies revealed that compared with HPLC, the method is rapid, high simple, high throughput and convenient for the determination of the conjugate in cells in situ. The uptake studies of the conjugate in cells using this method demonstrated that the cellular accumulation of the conjugate in KB-A-1 cells was dependent on a dynamic balance between influx and efflux processes.
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Affiliation(s)
- Yuhong Ren
- State Key Laboratory of Bioreactor Engineering, Institute of Biochemistry, East China University of Science and Technology, Shanghai 200237, China
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Ren Y, Wei D, Liu J, Su W. An antisense oligodeoxynucleotide-doxorubicin conjugate: preparation and its reversal multidrug resistance of human carcinoma cell line in vitro. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2005; 23:1595-607. [PMID: 15620098 DOI: 10.1081/ncn-200031419] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
An antisense oligodeoxynucleotide-doxorubicin conjugate was synthesized by an aminocaproic acid linker. The synthetic conjugate was identified by HPLC analysis and UV-vis spectra. Properties of the conjugate in vitro conditions were investigated. The results demonstrated that the conjugate was remarkably stabilized by doxorubicin. When incubated in Dulbecco Phosphate-Buflered Saline (pH 7.4) at 37 degrees C, the conjugate was more stable than doxorubicin or the mixture of doxorubicin and antisense oligodeoxynucleotide. When incubated in 10% fetal serum at 37 degrees C, the conjugate showed a remarkable stabilization as compared to the unmodified oligodeoxynucleotide. Melting experiments demonstrated that the covalent attachment of doxorubicin strongly stabilized the binding of the oligodeoxynucleotide to its complementary sequence. In addition, in vitro reversion of multidrug resistance by the conjugate was assayed in a human carcinoma cell line (KB-A-1) resisting to doxorubicin. The result showed that the conjugate displayed very high reversal multdrug resistance activity in KB-A-1 cells in vitro. The conjugate lowered the IC50 value from 21.5 microM to 2.2 microM with a fold-reversal factor of 10. In contrast, a slight decrease of the IC50 value was observed when they combined with the "free" antisense oligodeoxynucleotide: the IC50 value was down from 21.5 microM to 16.8 microM. This study suggested that antisense oligodeoxynucleotide-doxorubicin conjugate might be helpful in multidrug resistance reversal.
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Affiliation(s)
- Yuhong Ren
- State Key Laboratory of Bioreactor Engineering, Institute of Biochemistry, East China University of Science and Technology, Shanghai, China
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Amberg S, Engels JW. Phenylalkyl backbone modified oligodeoxynucleotides, their synthesis and the influence of the alkyl chain length. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2001; 20:1275-8. [PMID: 11563002 DOI: 10.1081/ncn-100002535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Phenylalkyl modified phosphoramidites (alkyl chain length n = 1, 2, 3, 5; Fig. 1) were synthesised and incorporated into a DNA hexamer (5'-d(GCCp-GCG); p = place of modification). The obtained diastereomeres were separated by RP-HPLC. After hybridisation with the complementary DNA strand Tm-value and thermodynamic data were measured. The stability of duplexes depends on the linker length and the absolute configuration of the backbone modified oligodeoxynucleotides (Rp, Sp).
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Affiliation(s)
- S Amberg
- Institut für Organische Chemie, Johann Wolfgang Goethe-Universität, Marie Curie Strasse 11, D-60439 Frankfurt am Main, Germany
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Balbi A, Sottofattori E, Grandi T, Mazzei M, Pyshnyi DS, Lokhov SG, Lebedev AV. Synthesis and hybridization properties of the conjugates of oligonucleotides and stabilization agents--II. Bioorg Med Chem 1997; 5:1903-10. [PMID: 9370034 DOI: 10.1016/s0968-0896(97)00127-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
New pyranone derivatives having tri- or pentamethylenamine linker functions were synthesized. These derivatives were covalently attached through the 5'-phosphoramide linkage to heptanucleotide pd(CCAAACA). Complementary complexes of the octanucleotide pd(TGTTTGGC) and above oligonucleotide conjugates were tested for their thermodynamic response. The Tm data and thermodynamic parameters for complex formation have demonstrated the ability of chromone (gamma-pyrone) and coumarin (alpha-pyrone) derivatives to stabilize strongly 7-mer/8-mer complementary complex, most likely through the stacking interaction of the pyran aromatic system with the neighboring nucleotide bases. The effect of chromone (or coumarin) derivatives on the stability of the oligonucleotide complexes (delta delta G at 37 degrees C ranged from -1.0 to -1.7 kcal/mol) was shown to be comparable to the effect of one nucleotide base pair and similar to the effect (delta delta G at 37 degrees C ranged from -1.5 to -2.0 kcal/mol) found for acridineoligonucleotide conjugates served in this study as a reference.
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Affiliation(s)
- A Balbi
- Institute of Pharmaceutical Sciences, Genoa, Italy
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Osborne SE, Cain RJ, Glick GD. Structure and Dynamics of Disulfide Cross-Linked DNA Triple Helices. J Am Chem Soc 1997. [DOI: 10.1021/ja963285h] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Scott E. Osborne
- Contribution from the Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055
| | - Robert J. Cain
- Contribution from the Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055
| | - Gary D. Glick
- Contribution from the Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055
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Balbi A, Sottofattori E, Grandi T, Mazzei M, Abramova TV, Lokhov SG, Lebedev AV. Synthesis and complementary complex formation properties of oligonucleotides covalently linked to new stabilizing agents. Tetrahedron 1994. [DOI: 10.1016/s0040-4020(01)89676-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Affiliation(s)
- L F Eng
- Department of Pathology, Stanford University School of Medicine, CA 94305
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Englisch U, Gauss DH. Chemisch modifizierte Oligonucleotide als Sonden und Agentien. Angew Chem Int Ed Engl 1991. [DOI: 10.1002/ange.19911030604] [Citation(s) in RCA: 41] [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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Byrn S, Carlson D, Chen J, Cushman M, Goldman M, Ma W, Pidgeon C, Ray K, Stowell J, Weith H. Drug-oligonucleotide conjugates. Adv Drug Deliv Rev 1991. [DOI: 10.1016/0169-409x(91)90022-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Miller PS, Ts'o PO. Chapter 30. Oligonucleotide Inhibitors of Gene Expression in Living Cells: New Opportunities in Drug Design. ANNUAL REPORTS IN MEDICINAL CHEMISTRY 1988. [DOI: 10.1016/s0065-7743(08)60858-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Abstract
Serendipity and random screening have been successful in producing effective antiviral agents. The increase in our knowledge of the basic biochemistry of viral replication and of virus-host interrelationships has revealed not only an understanding of the targets upon which existing antiviral agents exert their inhibitory effect, but also has uncovered new potential targets. The hope is that such molecular understanding will afford the synthesis of compounds with selective antiviral activity. A review of various viral targets which are potentially susceptible to attack, and a few approaches for development of antiviral agents are presented.
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