[Preparation and characterization of transfersomes of three drugs in vitro].
OBJECTIVE
To investigate the influence of drug properties on the encapsulation effiency (EE) and drug release of transfersomes for a proper transfersome preparation.


METHODS
To prepare the transfersomes of colchicines (CLC), vincristine sulfate (VCR) and mitoxantrone hydrochloride (DHAD) with the same materials and methods, and then measure their EE. To find out the relationship between drug properties like solubility, molecular weight and charges, and EE. To performe the drug release experiments of various types of transfersomes in vitro, and compare their differences.


RESULTS
VCR and DHAD are lipophilic or hydrophilic, owing positive charges and large molecular weight, as a result, their EE are high, while CLC is amphipathic, neutral, and of small molecular weight, its EE is very low. As DHAD can insert into the membrane of transfersome, the drug release of DHAD-T in vitro is much slower than that of VCR-T.


CONCLUSIONS
To prepare transfersomes with high EE, drugs that are lipophilic or hydrophilic, high molecular weight and opposite charges to the membrane should be chosen. Interaction between drugs and membrane will influnce the rate of drug release.
Zheng
Yu
Y
Huaxi College of Pharmacy, Sichuan University, Chengdu, China.
Hou
Shi-xiang
SX
Chen
Tong
T
Lu
Yi
Y
D000970:Antineoplastic Agents / Q000008:administration & dosage / Q000737:chemistry; D000972:Antineoplastic Agents, Phytogenic / Q000008:administration & dosage / Q000737:chemistry; D003078:Colchicine / Q000008:administration & dosage* / Q000737:chemistry; D003840:Deoxycholic Acid; D004337:Drug Carriers; D006074:Gout Suppressants / Q000008:administration & dosage / Q000737:chemistry; D008942:Mitoxantrone / Q000008:administration & dosage* / Q000737:chemistry; D010316:Particle Size; D010713:Phosphatidylcholines; D012995:Solubility; D013678:Technology, Pharmaceutical / Q000379:methods*; D014750:Vincristine / Q000008:administration & dosage* / Q000737:chemistry
D000970:Antineoplastic Agents; D000972:Antineoplastic Agents, Phytogenic; D004337:Drug Carriers; D006074:Gout Suppressants; D010713:Phosphatidylcholines; D003840:Deoxycholic Acid; D014750:Vincristine; D008942:Mitoxantrone; D003078:Colchicine