Antiproliferative and Proapoptotic Activities of Marine Sponge Extract on Breast Carcinoma Cell Line (MCF-7).

Ramachandran Muthiyan, Balwin Nambikkairaj, Nilkamal Mahanta, Titus Immanuel, Rahul Shubhra Mandal, Kubendiran Kumaran, Arun Kumar De
Author Information
  1. Ramachandran Muthiyan: Department of Zoology, Voorhees College, Thiruvalluvar University, Vellore, India.
  2. Balwin Nambikkairaj: Department of Zoology, Voorhees College, Thiruvalluvar University, Vellore, India.
  3. Nilkamal Mahanta: Department of Chemistry, Institute for Genomic Biology, University of Illinois, Urbana-Champaign, Illinois, USA.
  4. Titus Immanuel: Division of Fisheries Sciences, Central Island Agricultural Research Institute, Port Blair, Andaman and Nicobar Islands, India.
  5. Rahul Shubhra Mandal: Biomedical Informatics Centre, National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, India.
  6. Kubendiran Kumaran: Syngene International Limited (Biocon), Biocon Park, Bangalore, India.
  7. Arun Kumar De: Department of Animal Sciences, Central Island Agricultural Research Institute, Port Blair, Andaman and Nicobar Islands, India.

Abstract

BACKGROUND: Marine sponge is a rich natural resource of many pharmacologically important compounds.
OBJECTIVE: Marine sponge , collected from North Bay, South Andaman Sea, India, was screened for potential antiproliferative and proapoptotic properties on a breast adenocarcinoma cell line (MCF-7).
MATERIALS AND METHODS: 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was used to test the antiproliferative and cytotoxicity effects of the sponge extract. Analysis of apoptosis and cell cycle stages were done by flow cytometry. The expression of several apoptotic-related proteins in MCF-7 cells treated by the extract was evaluated by Western blot analysis. Various analytical techniques including Fourier transform infrared spectroscopy, gas chromatography-mass spectrometry, and nuclear magnetic resonance were employed to determine the identity of the active compounds in the sponge extract.
RESULTS: -Hexane extract of the sponge inhibited proliferation of the MCF-7 cell line in a dose- and time-dependent manner. Exposure of the sponge extract triggered apoptosis of the MCF-7 cells, induced DNA fragmentation, and arrested the cells in G/M phase. Treatment of the sponge extract induced downregulation of antiapoptotic Bcl-2 protein and upregulation of Bax, caspase-3, caspase-9, and fragmented poly(ADP ribose)polymerase proteins in MCF-7 cells. Five bioactive compounds have been identified in the extract.
CONCLUSION: The antiproliferative and proapoptotic activities of the tested extract suggested the pharmacologic potential of the identified compounds. Further characterization of the identified compounds are in progress.
SUMMARY: The -hexane extract of the marine sponge , collected from North Bay, South Andaman Sea, India, showed potential antiproliferative and proapoptotic properties against a breast adenocarcinoma cell line (MCF-7).The sponge extract retarded the growth of breast carcinoma cell line MCF-7 cells in a time- and dose-dependent manner.The sponge extract induced apoptosis of breast cancer cell line MCF-7 and arrested cells in G/M phase.The sponge extract induced downregulation of Bcl-2 protein in MCF-7 cell line and upregulation of Bax, caspase-3, and cleaved PARP. Five bioactive compounds have been identified in the extract. GC-MS: Gas chromatography-mass spectrometry; FT-IR: Fourier transform infrared spectroscopy; NMR: Nuclear magnetic resonance; MTT: 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide.

Keywords

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Word Cloud

Created with Highcharts 10.0.0extractspongeMCF-7cellcellscompoundslinebreastantiproliferativeapoptosisinducedidentifiedMarinepotentialproapoptoticThecollectedNorthBaySouthAndamanSeaIndiapropertiesadenocarcinoma3-4-25-diphenyltetrazoliumbromideproteinsFouriertransforminfraredspectroscopychromatography-massspectrometrymagneticresonancemannerarrestedG/MphasedownregulationBcl-2proteinupregulationBaxcaspase-3FivebioactivemarinecarcinomaAntiproliferativeBACKGROUND:richnaturalresourcemanypharmacologicallyimportantOBJECTIVE:screenedMATERIALSANDMETHODS:5-Dimethylthiazol-2-ylassayusedtestcytotoxicityeffectsAnalysiscyclestagesdoneflowcytometryexpressionseveralapoptotic-relatedtreatedevaluatedWesternblotanalysisVariousanalyticaltechniquesincludinggasnuclearemployeddetermineidentityactiveRESULTS:-Hexaneinhibitedproliferationdose-time-dependentExposuretriggeredDNAfragmentationTreatmentantiapoptoticcaspase-9fragmentedpolyADPribosepolymeraseCONCLUSION:activitiestestedsuggestedpharmacologiccharacterizationprogressSUMMARY:-hexaneshowedretardedgrowthtime-dose-dependentcancercleavedPARPGC-MS:GasFT-IR:NMR:NuclearMTT:5-dimethylthiazol-2-ylProapoptoticActivitiesSpongeExtractBreastCarcinomaCellLineHyrtioserectus

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