Document Type : Research Articles
Authors
1
Doctoral Program of Medical Sciences , Faculty of Medicine, Universitas Sebelas Maret, Surakarta, Central Java, Indonesia.
2
Department of Histology, Faculty of Medicine, Universitas Sebelas Maret, Surakarta, Central Java, Indonesia.
3
Department of Anatomical Pathology, Faculty of Medicine, Universitas Sebelas Maret, Surakarta, Central Java, Indonesia.
4
Department of Internal Medicine, Faculty of Medicine, Universitas Sebelas Maret, Surakarta, Central Java, Indonesia.
5
Department of Physiology and Biomedical Laboratory, Faculty of Medicine, Universitas Sebelas Maret, Surakarta, Central Java, Indonesia.
6
Dharma Husada Nursing Academy, Kediri 64114, East Java, Indonesia.
Abstract
Objective: Lung cancer is the leading cause of death among cancer patients. The majority of lung cancer is the Non-Small Lung Carcinoma (NSLC). This study evaluated the potency of brazilin isolated from Caesalpinia sappan wood to induce apoptosis on non-small lung carcinoma cell line, A549, by examining the expression of p53, caspase-9, and caspase-3. Methods: Brazilin was isolated from Caesalpinia sappan wood following a guided assay and it was determined by using Brazilin®SIGMA as standard. The activity of brazilin on the growth of A549 cell line was analysed by MTT assay and the apoptosis was evaluated by flowcytometer following Annexin V (FITC) and PI staining. The expression of p53, caspase-9, and caspase-3 was examined by immunocytochemistry. Result: The IC50 of brazilin on A549 cell line was 43µg/mL. Cell treatment with 20 µg/mL and 40 µg/mL of brazilin significantly increased early apoptosis (p<0.001). Cell treatment with 40 µg/mL of Brazilin significantly increased late apoptosis (p<0.001). Brazilin significantly increased the expression of p53, Caspase-9, and caspase-3 (p<0.001). Conclusion: This study showed evidence of the activity of brazilin to induce intrinsic apoptosis on a NSLC cell line A549.
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