Preparation of a novel sulfated glycopeptide complex and inhibiting L1210 cell lines property in vitro

A native glycopeptide, LZ-D-4, was purified from the fruiting bodies of Ganoderma lucidum, and its derivative, LZ-D-9, was prepared using sulfated agent (CSA: Pyr = 1:6). HPLC experiment showed that both of them were homogeneity and had molecular weights of 1.56 × 104 and 1.30 × 104 Da, respectively. Some properties including amino acid and monosaccharide compositions were investigated for the two compounds, along with anti-tumour bioactivity in vitro. The results indicated that two monosaccharides (Xyl and Ara) were completely destroyed and most of amino acids in LZ-D-4 were broken during sulfated process. Anti-tumour test in vitro showed that both complexes have properties to inhibit growth of L1210 cell lines and have similar bioactivities, but might have different mechanism.