Nuclear Receptor Signaling and Gene Regulation

Nuclear receptors (NRs) are a family of ligand-regulated transcription factors that orchestrate gene expression programmes essential for development, metabolism and homeostasis. Activated by small-molecule ligands derived from hormones, vitamins or metabolites, NRs undergo conformational changes that promote dimerisation—often with retinoid X receptors—and binding to specific DNA sequences known as hormone response elements. This interaction recruits co-regulatory complexes that modify chromatin architecture to activate or repress target genes. The specificity of NR signalling is governed by the identity and concentration of ligands, the repertoire of receptor isoforms, the availability of co-activators and co-repressors, and epigenetic modifications that influence receptor binding. Dysregulation of NR activity underpins a spectrum of diseases, from metabolic disorders to hormone-dependent cancers, making these receptors prominent therapeutic targets. Advances in structural biology, genomics and epigenetics are now revealing the mechanistic complexity and plasticity of NR-mediated gene regulation, paving the way for more precise interventions across a range of clinical applications.

Research from Nature Portfolio

Recent studies have uncovered an epigenetic mechanism that regulates a truncated isoform of a nuclear receptor critical for metastatic progression in melanoma. DNA methylation at an alternative transcriptional start site silences the truncated isoform in normal melanocytes but becomes progressively hypomethylated in metastatic cells. Re-expression of this isoform alters the full-length receptor’s DNA-binding profile towards genes associated with migratory and invasive phenotypes. This work highlights how dynamic epigenetic switches can fine-tune receptor isoform balance and drive pathological cell-state transitions, offering potential avenues for targeting metastatic plasticity.

Nuclear Receptor Signaling and Gene Regulation publication trend

The graph below shows the total number of articles in nuclear receptor signaling and gene regulation across all publications each year (not limited to Nature Index journals).

Technical terms

Nuclear receptor (NR): A transcription factor that binds small-molecule ligands and regulates gene expression.

Ligand: A molecule, often a hormone or metabolite, that binds to a receptor to modulate its activity.

Isoform: A variant form of a protein arising from alternative transcription or splicing.

Epigenetic methylation: Chemical modification of DNA that can silence gene expression without altering sequence.

Cistrome: The complete set of genomic regions bound by a transcription factor.

Co-regulator: A protein that associates with receptors to enhance (co-activator) or suppress (co-repressor) transcription.

Heterodimer: A complex of two different protein subunits, such as nuclear receptor pairs.

Direct repeat: A DNA motif of two identical sequences separated by a short spacer, recognised by receptor dimers.

Orphan receptor: A nuclear receptor for which the endogenous ligand has not yet been identified.

References

1. An epigenetic switch controls an alternative NR2F2 isoform that unleashes a metastatic program in melanoma. Nature Communications (2023).
2. Genomic regions occupied by both RARα and VDR are involved in the convergence and cooperation of retinoid and vitamin D signaling pathways. Nucleic Acids Research (2025).
3. Nuclear Receptors and the Hidden Language of the Metabolome. Cells (2024).
4. Non-canonical retinoid signaling in neural development, regeneration and synaptic function. Frontiers in Molecular Neuroscience (2024).