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Antiproliferative and Apoptotic Effect of Curcumin and TRAIL (TNF Related Apoptosis Inducing Ligand) in Chronic Myeloid Leukaemic Cells

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Specialty General Medicine
Date 2016 May 19
PMID 27190933
Citations 6
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Abstract

Introduction: Curcumin, traditionally utilized as a flavouring zest as a part of Indian cooking, has been accounted to decrease the proliferation potential of most cancer cells. Apoptosis is a mechanism by which most anticancer therapies including chemotherapy, radiation and antihormonal therapy kill tumour/cancer cells. Novel agents that may sensitize drug-resistant tumour cells for induction of apoptosis by customary treatments could lead to the regression and improved prognosis of the refractory disease. Indeed, chemotherapeutic agents have been shown to sensitize cancer cells to killing by death ligands such as tumour necrosis factor-α.

Aim: To investigate cytotoxicity and apoptotic effect of curcumin in chronic myeloid leukaemic cell line KCL-22.

Materials And Methods: In present study, different doses of curcumin (10,25,50,75,100μM) and tumour necrosis factor-related apoptosis-inducing ligand (TRAIL) (25,50 μM) alone and combine regimen were exposed to myeloid leukaemic cell KCL-22. The cell viability was monitored by MTT assay, apoptotic activity by binding of Annexin V-FITC using fluorescence microscopy and cell cycle check points by flow cytometry.

Results: Cytotoxic assay revealed that curcumin and TRAIL induced both dose and time-dependent decrease in cell viability. Significant cell cytotoxicity was seen in combine regimen of both curcumin and TRAIL at 48 h of exposure. Cells treated with curcumin and TRAIL was arrested at the S phase, as revealed by flow cytometric analysis. Subtoxic concentrations of the curcumin-TRAIL combination induced strong apoptotic response in KCL-22 cells as demonstrated by the binding of Annexin V-FITC.

Conclusion: Our study conclude that curcumin inhibits the cancer cell growth by inducing apoptosis and enhance the therapeutic potential of TRAIL which recommends that both curcumin alone or in combination with TRAIL might be useful for leukaemic prevention and better therapeutic responses.

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