We have isolated a substance with anti-retroviral activity from the freshly prepared crude extract of Chelidonium majus L. (greater celandine) by 9-aminoacridine precipitation method and ion exchange chromatography using Dowex-50W/H+ resin followed by the gel filtration on Sephadex-75 column. Elemental and phenol/sulfuric acid method analyses as well as the mass spectrometry of the purified substance indicated that it may represent a low-sulfated poly-glycosaminoglycan moiety with molecular weight of similar to 3800 Da. The substance prevented infection of human CD4+ T-cell lines AA2 and H9 with HIV-1 at concentration of 25 mu g/mL as well as the cell-to-cell virus spread in H9 cells continuously infected with HIV-1, as determined by the measurement of reverse transcriptase activity and p24 content in cell cultures. Furthermore, we have shown in a murine AIDS model that the treatment with purified substance significantly prevented splenomegaly and the enlargement of cervical lymph nodes in C57B1/6 mice chronically infected with the pool of murine leukemia retroviruses. The mechanism(s) of anti-retroviral activity of this substance have to be elucidated. (c) 2006 Elsevier B.V. All rights reserved.
机构:
Columbia Univ Coll Phys & Surg, Dept Biochem & Mol Biophys, Ctr Neurobiol & Behav, New York, NY 10032 USAColumbia Univ Coll Phys & Surg, Dept Biochem & Mol Biophys, Ctr Neurobiol & Behav, New York, NY 10032 USA
Bülow, HE
;
Hobert, O
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机构:
Columbia Univ Coll Phys & Surg, Dept Biochem & Mol Biophys, Ctr Neurobiol & Behav, New York, NY 10032 USAColumbia Univ Coll Phys & Surg, Dept Biochem & Mol Biophys, Ctr Neurobiol & Behav, New York, NY 10032 USA
机构:
Columbia Univ Coll Phys & Surg, Dept Biochem & Mol Biophys, Ctr Neurobiol & Behav, New York, NY 10032 USAColumbia Univ Coll Phys & Surg, Dept Biochem & Mol Biophys, Ctr Neurobiol & Behav, New York, NY 10032 USA
Bülow, HE
;
Hobert, O
论文数: 0引用数: 0
h-index: 0
机构:
Columbia Univ Coll Phys & Surg, Dept Biochem & Mol Biophys, Ctr Neurobiol & Behav, New York, NY 10032 USAColumbia Univ Coll Phys & Surg, Dept Biochem & Mol Biophys, Ctr Neurobiol & Behav, New York, NY 10032 USA