Carcinogenesis, Teratogenesis & Mutagenesis ›› 2022, Vol. 34 ›› Issue (5): 366-372,403.doi: 10.3969/j.issn.1004-616x.2022.05.006

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Growth inhibition of non-small cell lung cancers by Zaoci decotion in combination with cisplatin and gemcitabine

QI Jiankao, TANG Xiao, SUN Shihui, KOU Yanfang, CUI Zhiqin   

  1. Ningjin County Hospital of Integrative Medicine, Xingtai 055550, Hebei, China
  • Received:2022-04-24 Revised:2022-07-11 Published:2022-10-09

Abstract: OBJECTIVE: To investigate effects from Zaoci decotion in combinations with cisplatin and gemcitadine on growth inhibition of non-small cell lung cancers.METHODS: Fifty SPF-grade BALB/c nude mice were inoculated with A549 cell suspension in the axilla of the right forelimb against the back and used as a non-small cell lung cancer model.After successful modeling,inoculated mice were randomly divided into several groups:model,Zaoci decotion,gemcitabine combined with cisplatin (GP),cisplatin,and Zaoci decotion combined with GP.The model group was gavaged with saline (0.01 mL/g) per day;Zaoci decotion group gavaged with daily saponin soup (1 mL/mouse);GP group intraperitoneal injection with cisplatin (2 mg/kg) and gemcitabine (50 mg/kg) once every 3 days;cisplatin group intraperitoneal injection with cisplatin (2 mg/kg) for 1 time every 3 days;Zaoci decotion combined with GP regimen group daily gavage with Zaoci decotion (1 mL/mouse) and intraperitoneal injection with cisplatin (2 mg/kg) and gemcitabine (50 mg/kg) every 3 days.A total of 21 d of treatment was administered to each group.Tumor diameters were measured by vernier calipers at 3 d,7 d,14 d and 21 d of administrations;their weights were recorded after execution of the mice;tumor cell apoptoses were observed by TUNEL staining;tumor tissue Ki67,CD31,α-SMA and VEGF expressions were detected by immunohistochemistry;serum IL-4,IL-6 and TNF-α concentrations were detected by ELISA;tumor tissue Bax,Bcl-2 and Caspase-3 protein expressions were detected by Western blot.RESULTS: On the 21st day of administration,compared with the model group,tumor volumes and tumor weights in the Zaoci decotion,GP,cisplatin,and Zaoci decotion combined with GP groups were reduced significantly.The tumor volumes and tumor weights of the Zaoci decotion combined with GP group were the smallest (P<0.05).The apoptosis rates,Bax and Caspase-3 protein expressions were significantly higher,and Ki67 and Bcl-2 protein expressions were significantly lower in the Zaoci decotion combined with GP compared with the model group,the Zaoci decotion,the GP,and the cisplatin groups (P<0.05).Compared with the model group,the Zaoci decotion and the GP groups showed significantly lower IL-6 and TNF-α contents,and expressions of CD31,α-SMA and VEGF proteins (P<0.05).The contents of IL-4 were significantly higher in the Zaoci decotion combined with GP group (P<0.05).CONCLUSION: Zaoci decotion showed significant enhancing effects on the growth inhibition of non-small cell lung cancer by cisplatin combined with gemcitabine.The mechanism may be related to the inhibition of angiogenesis and induction of apoptosis.

Key words: non-small cell lung cancer, compound Zaoci decotion, cisplatin, gemcitabine, angiogenesis, apoptosis

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