Exp Mol Med.  2000 Sep;32(3):127-134.

Effects of allyl sulfur compounds and garlic extract on the expression of Bcl-2, Bax, and p53 in non small cell lung cancer cell lines

• Hong YS
• Ham YA
• Choi JH
• Kim JG

Abstract

Allyl sulfur compounds play a major role in the chemoprevention against carcinogenesis. The present study compared the antiproliferative effects of diallyl sulfide (DAS), diallyl disulfide (DADS) and garlic extract on p53-wild type H460 and p53-null type H1299 non small cell lung cancer cells (NSCLC). The DAS and DADS treatment of both H460 and H1299 cells resulted in the highest numbers of cells in apoptotic state as measured by acridine orange staining, however, garlic extract treatment did not induce any significant apoptotic cells by MTT assay. DADS was found to be more effective in inducing apoptosis on NSCLC. The level of p53 protein in H460 cell was increased following DADS treatment. DAS and garlic extract treatment of H460 cells induced a rise in the level of Bax and a fall of Bcl-2 level. These results demonstrate that DAS, DADS and garlic extract are effective in reduction of anti-proliferative gene in NSCLC and suggest that modulation of apoptosis-associated cellular proteins by DAS, DADS and garlic extract may be the mechanism for apoptosis which merit further investigation as potential chemoprevention agents.

Keyword

DAS; DADS; garlic extract; apoptosis; NSCLC

MeSH Terms

Allyl Compounds/pharmacology*
Anticarcinogenic Agents/pharmacology
Apoptosis
Carcinoma, Non-Small-Cell Lung/metabolism
Carcinoma, Non-Small-Cell Lung/drug therapy*
Disulfides/pharmacology*
Garlic*
Human
Lung Neoplasms/metabolism
Lung Neoplasms/drug therapy*
Plant Extracts/pharmacology
Protein p53/biosynthesis
Proto-Oncogene Proteins/biosynthesis
Proto-Oncogene Proteins c-bcl-2/biosynthesis
Sulfides/pharmacology*
Toxicity Tests
Tumor Cells, Cultured