ABSTRACT
Due to the infinite proliferation， strong migration and loss of contact inhibition of tumor cells， tumor has become the most intractable diseases to be cured in the world. At present， the main treatments of tumor diseases are surgical resection， radiotherapy， chemotherapy， targeted-therapy and immunotherapy. Although these measures can inhibit or kill the tumor to a certain extent， they still cannot avoid adverse reactions and drug resistance. After thousands of years of clinical practice， traditional Chinese medicine （TCM） has the characteristics of good curative effect， few adverse reactions and significantly improving the quality of life in patients， which provides new ideas for the prevention and treatment of tumors. As an endemic and rare plant in China， Tetrastigma hemsleyanum has been listed in the 2015 edition of Zhejiang Provincial Processing Specification of TCM with the effects of heat-clearing and detoxification， detumescence and analgesia， dissipating phlegm and resolving masses. It has been reported that the chemical constituents of T. hemsleyanum are mainly flavonoids， polysaccharides， phenolic acids， terpenoids， steroids， volatile oils， alkaloids and so on. It can exert a broad spectrum of anti-tumor effects through various ways such as inhibiting proliferation， migration and invasion of tumor cells， inducing apoptosis of tumor cells， inhibiting angiogenesis of tumor cells， reversing multidrug resistance of tumor cells and regulating body autoimmunity. On the basis of reviewing relevant literature at home and abroad， this paper intends to systematically sort out the chemical and anti-tumor research of T. hemsleyanum， and in order to provide a new idea for its synergistic anti-tumor effect of multi-component， multi-pathway and multi-target， and finally provide theoretical basis for the research and development and clinical application of new anti-tumor drugs of T. hemsleyanum.
ABSTRACT
Cinobufacino injection is purified from water extraction of the skin of Bufo bufo gargarizans, which has been widely used for various cancers in clinic with significant anti-tumor effects. Bufadienolides were regarded as the main active constituents of cinobufacino injection in previous reports. In present study, 6 bufadienolides were isolated and purified from Cinobufacino injection. Their structures were identified as 3-epi-ψ-bufarenogin (1), ψ-bufarenogin (2), 3-epi-arenobufagin (3), arenobufagin (4), 3-epi-gamabufotalin (5), and 3-oxo-arenobufagin (6), separately. Among them, 1 and 3 were new compounds, 5 and 6 were new natural products. Compounds 1, 2 and compounds 3, 4 were two pairs configuration isomers at C-3, separately.
Subject(s)
Animals , Bufanolides , Chemistry , Bufo bufo , Injections , Skin , ChemistryABSTRACT
Cinobufacino injection is a significant anti-tumor medicine for the treatment of various tumors in clinic, which was made from water extraction of the skin of Bufo bufo gargarizans. In present paper, HPLC-DAD-FT-ICR-MS method was used to identify the major bufadienolides in cinobufacino for the first time. Solid-phase extraction with dichloromethane and silica was used to enrich the total bufadienolides in cinobufacino. Based on the UV and high resolution MS/MS data, 33 bufadienolides were analyzed and characterized. Among them, eight compounds were identified by comparing with standard references unambiguously. This study elucidated the major bufadienolides in cinobufacino, which provided material foundation of cinobufacino and will be benefit for the further pharmacological research.