Home
Resources
Publications
Comparative Toxicity and Apoptosis Induced by Diorganotins in Rat Pheochromocytoma (PC12) Cells

Comparative Toxicity and Apoptosis Induced by Diorganotins in Rat Pheochromocytoma (PC12) Cells

Enli Liu, Xue Du, Rui Ge, Taigang Liang, Qiao Niu, Qingshan Li

Food Chem Toxicol. 2013 Oct;60:302-8.

PMID: 23927876

Abstract:

As ubiquitous environmental toxicants, organotin (IV) compounds (OTC) accumulate in the food chain and potential effects on human health are disquieting. The present study compared the cytotoxicity of three diorganotins, namely, dimethyltin (DMT), dibutyltin (DBT) and diphenyltin (DPT), in rat pheochromocytoma (PC12) cells, and the molecular mechanisms responsible for their cytotoxic effects were also explored. Twenty-four hours exposure of PC12 cells to DBT and DPT resulted in a concentration-dependent decrease in cell viability with median lethal concentration (LC₅₀) of 2.97 μM and 7.24 μM, respectively. However, DMT at concentrations up to 128 μM had no obvious effect on cell viability. The mechanistic study revealed that the extent of apoptosis was greater for DBT than that for DPT, followed by DMT, as evidenced by acridine orange/ethidium bromide (AO/EB) fluorescent staining method and annexin V-FITC/PI staining flow cytometry analysis, as well as generation of intracellular reactive oxygen species (ROS), mitochondrial membrane potential (MMP) disruption, release of cytochrome c (Cyt c), and consequent activation of caspase-9, and -3. These investigations suggested that the cytotoxic potency of three diorganotins in PC12 cells was in the order of DBT>DPT≫DMT, and these compounds could induce PC12 cells apoptosis through ROS mediated mitochondrial pathway.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1066440	Trimethyltin bromide		1066-44-0	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: