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Design of liposome to improve encapsulation efficiency of gelonin and its effect on immunoreactivity and ribosome inactivating property

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Abstract

Gelonin, purified from the seeds of Gelonium multiflorum, using cation-exchange and gel-filtration chromatography was characterised for its purity, homogeneity and molecular weight by reverse-phase HPLC (RP-HPLC) and SDS-PAGE analysis. The HPLC purified gelonin was used for entrapment studies in the liposomes. Liposomes were prepared by reverse phase evaporation (REV) technique using three different types of lipid composition in the same molar ratio. The method resulted in 75–80% entrapment efficiency of gelonin in the liposomes. Entrapped and unentrapped gelonin was characterized for physico-chemical, immunochemical and biological properties. The immunoreactivity of entrapped gelonin was fully preserved but the ribosome-inactivating property was slightly inhibited. The method involved mild conditions, highly reproducible and the liposomes produced appeared to be stable for several months. It has important implications in the development of cell type specific cytotoxic agents where a chemical cross-linking is involved which significantly inhibits both immunoreactivity and ribosome-inactivating ability of the toxin.

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Authors and Affiliations

  1. Department of Biochemistry, North-Eastern Hill University, 793 014, Shillong, India

    Anis Alam & S. R. K. Bhuri

  2. Institute of Self Organising Systems and Biophysics, North-Eastern Hill University, Bijni Complex, 793 003, Shillong, India

    Anil K. Mavila & Vinod Singh

Authors
  1. Anis Alam
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  2. S. R. K. Bhuri
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  3. Anil K. Mavila
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  4. Vinod Singh
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Alam, A., Bhuri, S.R.K., Mavila, A.K. et al. Design of liposome to improve encapsulation efficiency of gelonin and its effect on immunoreactivity and ribosome inactivating property. Mol Cell Biochem 112, 97–109 (1992). https://doi.org/10.1007/BF00227566

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  • DOI: https://doi.org/10.1007/BF00227566

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