A novel folic acid hydrogel loading β-cyclodextrin/camptothecin inclusion complex with effective antitumor activity
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Folic acid, as a significant vitamin, is essential for human bodies, especially for pregnant women. However, folic acid hydrogel for drug delivery has not been reported until now. Herein, folic acid hydrogel was prepared by ion inducing method firstly. Then β-cyclodextrin/camptothecin inclusion complex was loaded into folic acid hydrogel successfully by co-assembly. Camptothecin loading folic acid hydrogel has good rheological mechanical property and thermodynamic stability. Moreover, the possible mechanism of hydrogel formation was proposed by energy dispersive spectrometer and small-angle X-ray scattering. Besides, compared to camptothecin itself, camptothecin release rate from camptothecin loaded hydrogel was prolongated remarkably through dialysis experiment. Finally, the cell inhibitory rate of camptothecin loading folic acid hydrogel was increased observably compared to camptothecin itself. Hence, as a green drug delivery system, our folic acid hydrogel has important potential application in medical engineering material.
KeywordsFolic acid Hydrogel Camptothecin Drug delivery Antitumor activity
We greatly acknowledge financial support by National Natural Science Foundation of China (Grant Nos. 21807041, 21872087), Shandong Provincial Natural Science Foundation (Grant No. ZR2019PB006), Projects of Medical and Health Technology Development Program in Shandong Province (Grant No. 2017WS653), NSFC Cultivation Project of Jining Medical University (Grant No. JYP2018KJ12), the PhD Start-up Scientific Research Foundation of Jining Medical University (Grant No. 2017JYQD03), Supporting Fund for Teacher’s Research of Jining Medical University (Grant No. JY2017KJ038), the Undergraduate Training Programs for Innovation of Jining Medical University (No. cx2018022).
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Conflict of interest
The authors declare that they have no conflict of interest.
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