Kurmangaliyeva Saulesh, Baktikulova Kristina, Tkachenko Viktoriya, Seitkhanova Bibigul, Shapambayev Nasriddin, Rakhimzhanova Farida, Almagambetova Altyn, Kurmangaliyev Kairat
Department of Microbiology, Virology and Immunology, West Kazakhstan Marat Ospanov Medical University, 68 Maresyev St, Aktobe, Republic of Kazakhstan.
State Institution "Republican Scientific and Practical Centre of Sports, " 8 Narochanskaya St, Minsk, Republic of Belarus.
Biol Trace Elem Res. 2024 Sep 17. doi: 10.1007/s12011-024-04376-1.
Heavy metals are common environmental industrial pollutants. Due to anthropogenic activity, chromium, especially its hexavalent form [Cr(VI)], is a widespread environmental contaminant that poses a threat to human health. In this review paper, we summarize the currently reported molecular mechanisms involved in chromium toxicity with a focus on the induction of pro-inflammatory non-apoptotic cell death pathways such as necroptosis, pyroptosis, and ferroptosis. The review highlights the ability of chromium to induce necroptosis, pyroptosis, and ferroptosis revealing the signaling pathways involved. Cr(VI) can induce RIPK1/RIPK3-dependent necroptosis both in vitro and in vivo. Chromium toxicity is associated with pyroptotic NLRP3 inflammasome/caspase-1/gasdermin D-dependent secretion of IL-1β and IL-18. Furthermore, this review emphasizes the role of redox imbalance and intracellular iron accumulation in Cr(VI)-induced ferroptosis. Of note, the crosstalk between the investigated lethal subroutines in chromium-induced toxicity is primarily mediated by reactive oxygen species (ROS), which are suggested to act as a rheostat determining the cell death pathway in cells exposed to chromium. The current study provides novel insights into the pro-inflammatory effects of chromium, since necroptosis, pyroptosis, and ferroptosis affect inflammation owing to their immunogenic properties linked primarily with damage-associated molecular patterns. Inhibition of these non-apoptotic lethal subroutines can be considered a therapeutic strategy to reduce the toxicity of heavy metals, including chromium.
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