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Sulfur containing amino acids and human disease
Danyelle M Townsend1, Kenneth D Tew, Haim Tapiero
1Department of Pharmacology, Fox Chase Cancer Center, Philadelphia, PA 19111, USA.
Biomedicine & Pharmacotherapy = Biomedecine & Pharmacotherapie
|January 24, 2004
Summary
Sulfur-containing amino acids, methionine and cysteine, are vital for cellular health and detoxification. Imbalances in these amino acids can lead to various human diseases, but treatments may restore thiol balance.
Area of Science:
- Biochemistry
- Cellular Biology
- Human Physiology
Background:
- Sulfur-containing amino acids, methionine and cysteine, are crucial for cellular integrity and redox balance.
- These amino acids influence detoxification of harmful compounds and reactive oxygen species.
- They play a significant role in maintaining sulfur homeostasis and one-carbon metabolism.
Purpose of the Study:
- To highlight the importance of sulfur-containing amino acids in cellular systems.
- To discuss the link between genetic defects in sulfur metabolism and human pathologies.
- To explore potential treatments for thiol imbalance-related disorders.
Main Methods:
- Literature review on the biochemical roles of methionine and cysteine.
- Analysis of genetic defects affecting sulfur metabolism.
- Review of studies on thiol imbalance and associated diseases.
Main Results:
- Methionine and cysteine are essential for cellular redox state and detoxification.
- Genetic defects in sulfur metabolism cause disorders like homocystinuria and neural tube defects.
- Thiol imbalance is implicated in vascular disease, Alzheimer's, HIV, and cancer.
Conclusions:
- Sulfur-containing amino acids are fundamental to cellular health and homeostasis.
- Disruptions in sulfur metabolism lead to significant human pathologies.
- Restoring thiol balance presents a potential therapeutic strategy for multiple diseases.
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