[Research progress of the mechanisms underlying cadmium-induced carcinogenesis]

Area of Science:

• Environmental Toxicology
• Cancer Research
• Epigenetics

Background:

• Cadmium is an indirect genotoxic carcinogen.
• Epigenetic modifications are increasingly recognized as key factors in carcinogenesis.
• Understanding cadmium's carcinogenic mechanisms is crucial for public health.

Purpose of the Study:

• To review the epigenetic mechanisms of cadmium-induced carcinogenesis.
• To explore non-epigenetic pathways contributing to cadmium's carcinogenicity.
• To provide a comprehensive overview of cadmium's carcinogenic processes.

Main Methods:

• Literature review of scientific research on cadmium and cancer.
• Analysis of studies investigating epigenetic alterations (DNA methylation, histone modifications, microRNA expression).
• Examination of research on non-epigenetic mechanisms (gene regulation, DNA repair, apoptosis, oxidative stress, autophagy).

Main Results:

• Epigenetic alterations, including disrupted DNA methylation, histone modifications, and microRNA expression, are linked to cadmium-induced carcinogenesis.
• Cadmium disrupts gene expression and signaling pathways, represses DNA repair, and suppresses apoptosis.
• Oxidative stress and autophagy are also implicated in cadmium's carcinogenic effects.

Conclusions:

• Epigenetic modifications represent a significant mechanism in cadmium-induced carcinogenesis.
• A combination of epigenetic and non-epigenetic factors contributes to cadmium's carcinogenicity.
• Further research into these mechanisms can inform preventative strategies and therapeutic interventions.