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A homogeneous polysaccharide (FP2) with 83.3 kDa molecular weight was obtained from the aerial parts of Ficus pandurata H. (Moraceae) by Sevag, anion-exchange chromatography and gel-filtration chromatography. On the basis of composition analysis, infrared spectra (IR) and nuclear magnetic resonance (NMR) experiments, FP2 is a linear pectin with a main chain composed of →4)-α-D-GalpA-(1→. We investigated the anti-proliferative activity and its underlying mechanism of FP2 in HeLa cancer cells, using MTT assay and western blot analysis, res