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Midkine secretion protects Hep3B cells from cadmium induced cellular damage
Nuray Yazihan1, Haluk Ataoglu, Ethem Akcil
1Molecular Biology Research and Development Unit, Faculty of Medicine, Ankara University, Morfoloji Binasi, Sihhiye, Ankara 06100,Turkey. nurayyazihan@yahoo.com
World Journal of Gastroenterology
|January 8, 2008
Summary
Cadmium exposure harms liver cells, but midkine secretion protects them. This study shows midkine acts as a protective agent against cadmium toxicity in liver cells.
Area of Science:
- Hepatology
- Toxicology
- Cell Biology
Background:
- Cadmium (Cd) is a toxic heavy metal.
- Hepatocyte cell lines are crucial models for studying liver injury.
- Midkine is a growth factor with potential roles in cell protection.
Purpose of the Study:
- To investigate the role of midkine secretion in response to Cadmium (Cd) exposure.
- To evaluate the protective effects of midkine against Cd-induced liver cell damage.
Main Methods:
- Human hepatocyte Hep3B cells were exposed to varying concentrations of Cadmium (Cd).
- Apoptosis, lactate dehydrogenase (LDH) leakage, and midkine secretion were measured.
- Experiments included co-administration of exogenous midkine and Cd.
Main Results:
- Cadmium exposure induced significant apoptosis and LDH leakage in Hep3B cells.
- Cd exposure stimulated midkine secretion in a dose-dependent manner.
- Exogenous midkine application significantly reduced Cd-induced apoptosis, LDH leakage, and cell death.
Conclusions:
- Midkine secretion plays a protective role against Cadmium-induced liver cell damage.
- Midkine exhibits anti-apoptotic and cytoprotective properties during Cadmium toxicity.
- Midkine may serve as a potential therapeutic agent for toxic hepatic diseases.