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[Metallothionein and medicine]
Sheng Li Ke Xue Jin Zhan [Progress in Physiology]
|January 1, 1995
Summary
Metallothioneins are proteins that can be induced by various factors, including heavy metals and inflammation. They show potential in preventing kidney toxicity from cDDP chemotherapy but may also contribute to drug resistance.
Area of Science:
- Biochemistry
- Molecular Biology
- Toxicology
Context:
- Metallothioneins (MTs) are a class of low molecular weight, high cysteine-rich proteins.
- MTs play crucial roles in heavy metal homeostasis, detoxification, and protection against oxidative stress.
- Their expression is inducible by a wide range of stimuli, including heavy metals, xenobiotics, inflammatory cytokines, and stress factors.
Purpose:
- To explore the multifaceted roles of metallothioneins in biological systems.
- To investigate the potential therapeutic applications of metallothioneins, particularly in mitigating drug-induced toxicity.
- To understand the complex relationship between metallothioneins and disease pathogenesis, including cancer and inflammatory conditions.
Summary:
- Metallothioneins exhibit inducibility in response to heavy metals, metabolites, and stress.
- In mammals, interleukin-6 can induce metallothionein synthesis during inflammation.
- Metallothionein may offer protection against cisplatin (cDDP)-induced renal toxicity without compromising anticancer efficacy, though it is also implicated in cDDP resistance.
- Evidence links metallothioneins to various diseases, including inflammatory bowel disease, toxemia of pregnancy, and liver disease.
Impact:
- Metallothioneins represent a promising target for therapeutic strategies aimed at reducing chemotherapy-related side effects.
- Understanding MTs' role in disease pathogenesis can lead to novel diagnostic and therapeutic approaches.
- Further research into MTs could elucidate mechanisms underlying drug resistance and disease progression.