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Planta Med 2015; 81(18): 1705-1711
DOI: 10.1055/s-0035-1557751
Biological and Pharmacological Activitiy
Original Papers
Georg Thieme Verlag KG Stuttgart · New York

Evaluation of Cytotoxic and Antitumour Properties of Apodytes dimidiata and Characterisation of the Bioactive Component

Menon Kunnathully Divya
Department of Biochemistry, Amala Cancer Research Centre (Affiliated to University of Calicut), Amala Nagar, Thrissur, Kerala, India
,
Sasidharan Salini
Department of Biochemistry, Amala Cancer Research Centre (Affiliated to University of Calicut), Amala Nagar, Thrissur, Kerala, India
,
Thomas Chubicka
Department of Biochemistry, Amala Cancer Research Centre (Affiliated to University of Calicut), Amala Nagar, Thrissur, Kerala, India
,
Achuthan Chathrattil Raghavamenon
Department of Biochemistry, Amala Cancer Research Centre (Affiliated to University of Calicut), Amala Nagar, Thrissur, Kerala, India
,
Thekkekara Devassy Babu
Department of Biochemistry, Amala Cancer Research Centre (Affiliated to University of Calicut), Amala Nagar, Thrissur, Kerala, India
› Author Affiliations
Further Information

Publication History

received 29 July 2014
revised 10 June 2015

accepted 12 June 2015

Publication Date:
28 July 2015 (online)

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Abstract

Apodytes dimidiata, belonging to the family Icacinaceae, is used for treating inflammation and various gastrointestinal ailments in Zulu traditional medicine. In the present study, significant cytotoxicity was exhibited by the methanolic extract of the A. dimidiata leaf against various cancer cell lines. The extract was purified partially through silica gel column by successive elution using various solvents of increasing polarity. Among these, the active methanolic fraction was found to be the most cytotoxic with IC50 values ranging from 0.92 to 3.95 µg/mL for Ehrlichʼs ascites carcinoma (a carcinoma cell line), Jurkat (human T lymphocyte cell line), and SK-BR-3 (mammary tumour cell line). The treated cells showed morphological alterations characteristic of apoptosis. Upon oral administration of active methanolic fraction at a dose of 250 mg/kg body weight, the solid tumour volume in mice was significantly reduced to 55.14 % and the life span of the ascites tumour-bearing mice increased to 44.65 % compared to untreated control. The active fraction with Rf value 0.56 was purified from the methanolic fraction by preparative thin-layer chromatography and was subjected to high-performance thin-layer chromatography, high-performance liquid chromatography, liquid chromatography-mass spectrometry, and nuclear magnetic resonance analysis. The iridoid glycoside genipin was identified as the active component.

Key words

Apodytes dimidiate - Icacinaceae - cytotoxicity - antitumour activity - active principle - genipin

Supporting Information

 

  • References

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