TY - JOUR
T1 - High-porosity activated carbon as a possible matrix for native DNA and Dextran-sulfate immobilization
AU - Snezkova, Elizaveta A.
AU - Muller, Daniel
AU - Bardakhivskaya, Kvitoslava I.
AU - Mikhalovsky, Sergey V.
AU - Nikolaev, Vladimir G.
PY - 2004
Y1 - 2004
N2 - In this study, specific and nonspecific activity of calf thymus DNA and Dextran-Sulfate (DS)-containing synthetic carbonic adsorbents (0.7-7 mg of each ligands per 1 cm3 of activated carbonic beads, 0.3-0.6mm diameter, bulk density γ = 0.1-0.2g/cm3) have been compared in stir-bath and micro-column in vitro tests. DS coating as well as DNA coating does not demonstrate deep influence on the unspecific adsorptive activity of carbonic matrix toward creatinine, vitamin B12, and unconjugated bilirubin. No essential difference has been found in the specific activity of DNA and DS containing adsorbents toward anti-ds- and anti-ss-DNA-antibodies, as well as antibodies against DNA-protein complexes (anti-DNP-antibodies): in both cases the percentage of decrease of appropriate antibody concentration varied between 35 and 51% for single-pass microcolumn experiments with moderate enhancement of extraction efficacy (up to 60-75%) due to additional recirculation (2 h) or preliminary plasma dilution in 2-5 times. In the micro-column experiments with the proinflammatory cytokines DNA or DS-coating did not diminish TNF-α, IL-1β, and IL-6 adsorption from 3% BSA solution, but even improves to some extent its removal compared with uncoated matrix.
AB - In this study, specific and nonspecific activity of calf thymus DNA and Dextran-Sulfate (DS)-containing synthetic carbonic adsorbents (0.7-7 mg of each ligands per 1 cm3 of activated carbonic beads, 0.3-0.6mm diameter, bulk density γ = 0.1-0.2g/cm3) have been compared in stir-bath and micro-column in vitro tests. DS coating as well as DNA coating does not demonstrate deep influence on the unspecific adsorptive activity of carbonic matrix toward creatinine, vitamin B12, and unconjugated bilirubin. No essential difference has been found in the specific activity of DNA and DS containing adsorbents toward anti-ds- and anti-ss-DNA-antibodies, as well as antibodies against DNA-protein complexes (anti-DNP-antibodies): in both cases the percentage of decrease of appropriate antibody concentration varied between 35 and 51% for single-pass microcolumn experiments with moderate enhancement of extraction efficacy (up to 60-75%) due to additional recirculation (2 h) or preliminary plasma dilution in 2-5 times. In the micro-column experiments with the proinflammatory cytokines DNA or DS-coating did not diminish TNF-α, IL-1β, and IL-6 adsorption from 3% BSA solution, but even improves to some extent its removal compared with uncoated matrix.
KW - Carbonic adsorbents
KW - Cytokines
KW - DNA
KW - Dextran-sulfate
KW - Fractality
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U2 - 10.1081/BIO-200039612
DO - 10.1081/BIO-200039612
M3 - Article
C2 - 15974180
AN - SCOPUS:10644285825
VL - 32
SP - 529
EP - 537
JO - Artificial Cells, Nanomedicine and Biotechnology
JF - Artificial Cells, Nanomedicine and Biotechnology
SN - 2169-1401
IS - 4
ER -