Ion Channels and Regulatory Signals of Heme
Abstract
Heme is vital for life and an indispensable factor in various physiological processes. Beyond its function as a key ligand, heme serves as a multifaceted biomodulator, actively regulating diverse protein functions and cellular pathways. One of its significant functions is modulating the activity of ion channels. Heme's regulation of cellular excitability is linked to vital physiological functions, including sensitivity to oxygen and blood pressure regulation through neural signals. Furthermore, heme's impact on ion channels' role in controlling vascular processes, such as strokes or bleeding. Given the functional importance of the heme-driven action of the ion channel, further exploration is warranted, as many aspects of this process remain understudied. This brief review aims to summarize the structural organization of heme-sensitive sites within ion channels and examines the functional consequences of heme action. We think this knowledge will enhance our understanding of heme-driven modulation in ion channels.
Keywords
References
- Soladogun AS, Zhang L. The neural palette of heme: Altered heme homeostasis underlies defective neurotransmission, increased oxidative stress, and disease pathogenesis. Antioxidants (Basel) 2024;13:1441. doi:10.3390/antiox13121441 google scholar
- Dutt S, Hamza I, Bartnikas TB. Molecular mechanisms of iron and heme metabolism. Annu Rev Nutr. 2022;42:311-335. doi:10.1146/annurev-nutr-062320-112625 google scholar
- Coletta M, Bolognesi M, Ascenzi P. Heme is pivotal for life. J Inorg Biochem. 2024;250:112423. doi:10.1016/j.jinorgbio.2023.112423 google scholar
- Akabane T, Igarashi K, Takei M, et al. Heme deficiency in skeletal muscle exacerbates sarcopenia and impairs autophagy by reducing AMPK signaling. Sci Rep. 2024;14:22147. doi:10.1038/s41598-024-73049-9 google scholar
- Duarte TL, Viveiros N, Godinho C, Duarte D. Heme (dys)homeostasis and liver disease. Front Physiol. 2024;15:1436897. doi:10.3389/fphys.2024.1436897 google scholar
- Immenschuh S, Baumgart-Vogt E, Müller S, et al. Heme as a target for therapeutic interventions. Front Pharmacol. 2017;8:146. doi:10.3389/fphar.2017.00146 google scholar
- 7.Hou S, Shen Q, Schetz JA, et al. Reversible binding of heme to proteins in cellular signal transduction. Acc Chem Res. 2006;39:918-924. doi:10.1021/ar040020w google scholar
- Fermi G, Perutz MF, Shaanan B, Fourme R. The crystal structure of human deoxyHemeoglobin at 1.74 Å resolution. J Mol Biol. 1984;175:159-174. doi:10.1016/0022-2836(84)90472-8 google scholar
Details
Primary Language
English
Subjects
Signal Transduction
Journal Section
Review
Authors
Taleh Yusifov
*
0009-0002-8486-5695
Azerbaijan
Aysel Aliyeva
0009-0005-2826-0335
Azerbaijan
Fidan Gudratova
0009-0005-9597-5066
Azerbaijan
Nermin Aliyeva
This is me
0009-0002-2416-3018
Azerbaijan
Publication Date
February 26, 2026
Submission Date
August 2, 2025
Acceptance Date
December 23, 2025
Published in Issue
Year 2026 Volume: 85 Number: 1