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In Vitro Screening for Cytotoxic, Anti-bacterial, Anti-HIV1-RT Activities and Chemical Constituents of Croton fluviatilis, Croton acutifolius, and Croton thorelii

Author(s):

Charina Worarat, Wilart Pompimon*, Phansuang Udomputtimekakul, Sukee Sukdee, Punchavee Sombutsiri, Natthika Kuanmuang, Issariyaporn Suwan, Yuttaphong Khamyong, Chuthimon Suksabai, Woralak Artkla, Puttinan Meepowpan and Narong Nuntasaen   Pages 1 - 8 ( 8 )

Abstract:


Background: Although the chemical constituents and biological activities of a large number of plants in the Croton genus have been studied, there are still recently discovered plants to be investigated.

Objective: 1. To investigate the anti-bacterial, anti-HIV1-RT, and cytotoxicity activities of crude extracts from these plants. 2. To investigate the chemical constituents of Croton fluviatilis, Croton acutifolius, and Croton thorelii.

Method: The anti-bacterial, anti-HIV1-RT, and cytotoxicity of the three plants were evaluated by standard techniques. Extraction, separation, and purification of extracts from the three plants were undertaken.

Results: The ethyl acetate extract of C. fluviatilis showed low anti-bacterial activity against E. aerogenes, E. coli 0157: H7, and P. mirabilis, together with the ethyl acetate extract of C. acutifolius displayed low anti-bacterial activity against E. aerogenes, while all the crude extracts of C. thorelii were inactive. The ethyl acetate extracts of C. thorelii, and C. fluviatilis showed strong inhibited HIV1-RT, whereas the ethyl acetate extract of C. acutifolius, and the hexane extract of C. fluviatilis displayed moderate inhibited HIV1-RT. Cytotoxic properties of three Croton plants were specific to KKU-M213, MDA-MB-231, A-549, and MMNK-1. Especially, the ethyl acetate extract of C. acutifolius exhibited strong cytotoxic activities against MDA-MB-231, A-549, and MMNK-1. Furthermore, the ethyl acetate extract of C. thorelii showed high cytotoxic activities against KKU-M213, and MDA-MB-231. Compounds 1, and 4 were found in C. fluviatilis. Compounds 2 and 4 were also found in C. acutifolius. Moreover, compound 3 was only found in C. thorelii.

Conclusion: The present study revealed that the three Croton species are good sources of flavonoid compounds and further investigation of the chemical constituents from these plants may prove to be fruitful to discover more active compounds to be tested as potential medicines.

Keywords:

Cytotoxicity, Anti-bacterial, Anti-HIV1-RT activities, Croton fluviatilis, Croton acutifolius, Croton thorelii

Affiliation:

Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Laboratory of Natural Products, Center of Excellence for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, Lampang 52100, Department of Chemistry, and Center for Innovation in Chemistry, Faculty of Science, Chiang Mai University, 50300 Chiang Mai, The Forest Herbarium, Department of National Park, Wildlife and Plant Conservation, Ministry of Natural Resources and Environment, Bangkok 10900



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