|Year : 2016 | Volume
| Issue : 1 | Page : 55-58
In vitro anticancer potential of Semecarpus anacardium Linn
Md. Nasar Mallick1, Washim Khan2, Mhaveer Singh2, Mohd. Zeeshan Najm3, Mohammad Kashif3, Sayeed Ahmad2, Syed Akhtar Husain3
1 Department of Pharmacognosy and Phytochemistry, Faculty of Pharmacy, Bioactive Natural Product Laboratory, Jamia Hamdard (Hamdard University); Department of Biotechnology, Human Genetics Laboratory, Jamia Millia Islamia, New Delhi, India
2 Department of Pharmacognosy and Phytochemistry, Faculty of Pharmacy, Bioactive Natural Product Laboratory, Jamia Hamdard (Hamdard University), New Delhi, India
3 Department of Biotechnology, Human Genetics Laboratory, Jamia Millia Islamia, New Delhi, India
|Date of Web Publication||13-Apr-2016|
Department of Pharmacognosy and Phytochemistry, Faculty of Pharmacy, Bioactive Natural Product Laboratory, Jamia Hamdard (Hamdard University), New Delhi - 110 062
Source of Support: None, Conflict of Interest: None
Background: Keeping in view the toxicity of Semecarpus anacardium Linn. as reported in the traditional literature, the present study was carried out to evaluate the in vitro cytotoxic activity of ethanolic extract of Semecarpus on two different cell lines. Materials and Methods: The ethanolic extract of Semecarpus was prepared using cold extraction method. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay of ethanolic extract was carried out on HeLa and SiHa cell lines for determination of cytotoxicity. Results: The IC50values of ethanolic extract of S. anacardium in HeLa and SiHa cell lines were 44.0 μg/ml and 57.0 μg/ml, respectively. The extract was standardized by thin-layer chromatography and Gas chromatography-mass spectrometry. Conclusion: The results showed good cytotoxic activity in the ethanolic extract of S. anacardium in both the cell lines may be due to the presence of toxic flavones.
Keywords: 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, HeLa and SiHa, Semecarpus anacardium
|How to cite this article:|
Mallick M, Khan W, Singh M, Najm M, Kashif M, Ahmad S, Husain SA. In vitro anticancer potential of Semecarpus anacardium Linn. Drug Dev Ther 2016;7:55-8
|How to cite this URL:|
Mallick M, Khan W, Singh M, Najm M, Kashif M, Ahmad S, Husain SA. In vitro anticancer potential of Semecarpus anacardium Linn. Drug Dev Ther [serial online] 2016 [cited 2017 Sep 19];7:55-8. Available from: http://www.ddtjournal.org/text.asp?2016/7/1/55/180167
| Introduction|| |
Cancer is a generic term for a large group of diseases that can affect any part of the body. Cancer arises from one single cell. The transformation from a normal cell into a tumor cell is a multistage process; cancer is an exception to the coordinated interaction among cell and organs. In general, the cells of a multicellular organism are programed for collaborations. Many diseases occur because the specialized cells fail to perform their assigned task. Cancer takes this malfunction one step further not only is there a failure of the cancer cell to maintain its specialized function but it also strikes out on its own; the cancer cell competes to survive using natural mutability. Semecarpus anacardium (family - Anacardiaceae) is a medium-sized tree found in moist deciduous forest in all over the country. It is commonly known as Bhilawa, Bladur in Unani system of medicine. It has been used in traditional system of medicine for different ailments and diseases. The fruits of the plant are used for their therapeutic beneficiary effect to cure the diseases. It is used as antiarthritis and cardiotonic agent. The biflavonoids, phenolics, bhilawanols, sterols, anacardic acid, and glycosides have been identified as constituents of S. anacardium nut extract. On the basis of chemical and spectral data, several biflavonoids, such as jeediflavanone, galluflavanone, nalluflavanone, semecarpetin, semecarpuflavanone, and anacardiflavanone, have been characterized. The jeediflavanone also confer scavenging potential, semecarpuflavanone, semecarpetin, and galluflavanone have a 7-OH group that might contribute to the free radical-chelating activity of S. anacardium. The thin-layer chromatography (TLC), high-performance liquid chromatography, and high-performance TLC analysis of the fruit extract confirmed the presence of the above compounds,,,, which show different pharmacological activity. Studies show that the drug has anti-inflammatory, hepatoprotective, antioxidant, antiarthritic, anthelmintic, and hypoglycemic activity  and it also act as a cardiotonic agent. Therefore, in the present investigation, the nut milk extract has reported to have anticancer activity. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay of ethanolic extract was carried out on cervix cancer (HeLa and SiHa) cell lines for determination of the anticancer potential of S. anacardium.
| Materials and Methods|| |
Roswell Park Memorial Institute (RPMI-1640), fetal calf serum (FCS), and phosphate-buffered saline were procured from Gibco, USA. The trypsin-ethylenediaminetetraacetic acid, trypan blue, Penicillin-Streptomycin solution, Dimethyl sulfoxide (DMSO), and MTT were purchased from Sigma-Aldrich, USA. All other solvents and chemical used were of analytical grade and procured from Merck India Ltd.
The drug samples were purchased from local market of Delhi, India, and the specimen (Ref. NISCAIR/RHMD/Consult/-2010-11/1563/161/27/10-10) authenticated by botanist Dr. H. B. Singh, Scientist F and Head Raw Material Herbarium and Museum, NISCAIR, New Delhi.
Preparation of hydroalcoholic extract of Semecarpus anacardium
The extraction was done by cold extraction method using percolator taking 500 g of powdered drug and extracting it using 70% alcohol as a solvent for 48 h. It was filled and evaporated to dryness under reduced pressure.
Thin-layer chromatography fingerprinting analysis
The hydroalcoholic extract (28 mg) of S. anacardium was dissolved in 1.0 mL of methanol and HPTLC was performed using toluene: Ethyl acetate: Formic acid (8:2:0.5 v/v/v) as solvent system for performing TLC fingerprinting.
Gas chromatography-mass spectrometry analysis
The dried hydroalcoholic extract (5 mg) was sonicated in 5.0 mL of hexane for 30 min at room temperature and filtered and then made up the final volume up to 10 mL for gas chromatography-mass spectrometry (GC-MS) analysis.
Cytotoxicity assay of Semecarpus anacardium extract
Sample preparation for in vitro activity
The S. anacardium extract (500 mg) was dissolved in DMSO and volume was made up to 10 mL in a volumetric flask. The solution was passed thorough 0.45 µ membrane filter and stored at 4°C until used. The previously prepared 50 µg/ml stock solution was diluted 50 times using RPMI-1640 media (1.0–50 mL) to get concentration of 1000 µg/ml of hydroalcoholic extract. It was passed through 0.22 µ membrane filter before using in vitro studies.
The cell culture was trypsinized and the cell count was adjusted to 1.0 × 105 cells/mL using medium containing 10% FCS. To each well of the 96 well microtiter plate, 0.1 mL of the diluted cell suspension (approximately 10,000 cells in 100 µL) was added. After 24 h, when the cell is adhered, media was discarded, and an equal volume of fresh media and drug (100 µL each) was added. The plates were incubated at 37°C in 5% CO2 incubator for 24, 48, and 72 h. After 24 h, the drug solutions in the wells were discarded, and 25 µL of MTT was added to each well. The plates were gently shaken and again incubated for 3–4 h at 37°C in 5% CO2 incubator. After 4 h, the supernatant was removed, and viable cell showed the formation of formazan crystal, which was formed by adding MTT. The formed formazan crystal was dissolved by adding 100 µL of DMSO in each well, followed by incubation at 37°C for 30 min. The absorbance was measured using a microplate reader at a wavelength of 570 nm. The experiment was repeated after 48 and 72 h.
| Results and Discussion|| |
Thin-layer chromatography fingerprinting
The TLC fingerprinting of hydroalcoholic extract of S. anacardium was developed on silica gel. The extract showed a maximum number of UV active compounds and thus detected at 254 nm, with (11) number of spots present in them with their respective Rf values [Figure 1]a.
|Figure 1: Figure showing gas chromatography-mass spectrometry peak analysis (a) and thin-layer chromatography chromatogram (b) of hydroalcoholic extract of Semecarpus anacardium|
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Gas chromatography-mass spectrometry analysis
The recorded spectra were compared with MS library and or reference standard. By comparing with the NIST library, 11 compounds were detected and identified. GC-MS chromatogram of S. anacardium was shown in [Figure 1]b and [Table 1].
|Table 1: Results of gas chromatography-mass spectrometry analysis of hydroalcoholic extract of Semecarpus anacardium|
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The cytotoxicity of hydroalcoholic extract of S. anacardium on cervix cancer cell lines was determined by MTT assay. The results of HeLa and SiHa cell lines cytotoxicity assay of extract are (IC50 ranged from 44 μg/ml and 57 μg/ml at 72 h) similar to results of 24 h and 48 h summarized in [Table 2], show dose response curve in [Figure 2] and microphotograph of HeLa cell and SiHa cells after treatment with hydroalcoholic extract of S. anacardium [Figure 3].
|Table 2: Results of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide of hydroalcoholic extract of Semecarpus anacardium|
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|Figure 2: Dose response curve to determine the IC50values of Semecarpus anacardium extract in HeLa and SiHa cells after 24 h (a), 48 h (b), 72 h (c)|
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|Figure 3: Microphotograph of HeLa cell (a) and SiHa cells (b) after treatment with hydroalcoholic extract of Semecarpus anacardium|
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| Conclusion|| |
The results showed good cytotoxic activity in the hydroalcoholic extract of S. anacardium in both the cell lines may be due to the presence of toxic flavones, biflavonoids, phenolics, bhilawanols, sterols, anacardic acid, and glycosides have been identified as constituents of S. anacardium nut extract.
SAH and SA acknowledge the financial support from CCRUM, Department of AYUSH (Ministry of Health and Family Welfare) File No. 3-6/2009-CCRUM/EMR.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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[Figure 1], [Figure 2], [Figure 3]
[Table 1], [Table 2]