以粘均相对分子质量700000和17500的高脱乙酰度壳聚糖为原料,通过吡啶催化制备N-琥珀酰壳聚糖(N-SUCC-CCTS),通过甲磺酸保护氨基制备O-琥珀酰壳聚糖(O-SUCC-CTS).应用异硫氰酸荧光素黄(FTTC)对合成的2种琥珀酰壳聚糖进行标记,荧光标记率分别为0.97%(O-SUCC-CTS)、0.66%(N-SUCC-CTS1.75)和0.34%(N-SUCC-CTS70).用流式细胞仪测定琥珀酰壳聚糖与人白血病HL-60细胞的结合能力,亲和性能力顺序为O-SUCC-CTS1.75＞N-SUCC-CTS1.75＞N-SUCC-CTS70.O-SUCC-CTS是一种很有潜力的抗肿瘤靶向载体.
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