Metallothionein in human disease.

Area of Science:

• Biochemistry
• Molecular Biology
• Pathology

Background:

• Metallothionein (MT) is a protein known for its role in heavy metal binding and detoxification.
• MT is involved in regulating cellular processes like oxidative stress and apoptosis.
• The precise function of MT in human disease pathogenesis remains incompletely understood.

Purpose of the Study:

• To review existing evidence on the role of metallothionein (MT) in human diseases.
• To explore the relationship between MT's known functions and disease development.
• To investigate the potential impact of MT modulation on complex disease scenarios.

Main Methods:

• Review of current scientific literature on metallothionein.
• Juxtaposition of MT knowledge with disease pathogenesis understanding.
• Analysis of studies involving manipulation of MT levels in cells and animal models.

Main Results:

• MT modulates the release of gaseous mediators (e.g., hydroxyl radical, nitric oxide).
• MT influences apoptosis and the binding/exchange of heavy metals (e.g., zinc, cadmium, copper).
• Associations between MT and diseases like cancer, circulatory shock, coronary artery disease, and Alzheimer's disease have been observed.
• Evidence suggests MT modulates the immune system.

Conclusions:

• Metallothionein (MT) is implicated in various human diseases through its modulation of fundamental cellular processes.
• MT's role in disease is supported by its influence on oxidative stress, apoptosis, metal homeostasis, and immune function.
• Despite observed associations, the primary function of MT in human disease remains an open question requiring further investigation.