Transcriptome-wide analysis of alternative splicing in women with fibromyalgia highlights GNLY as an immune candidate
Background Fibromyalgia syndrome (FMS) affects 1 to 2 percent of the general population, with higher prevalence estimates in women. Recent evidence supports peripheral immune involvement in disease pathophysiology. Alternative splicing (AS) regulates immune cell function independently of transcript abundance and carries disease-relevant signal in related autoimmune conditions. No study has…
A recent study has uncovered a potential immune-related factor in fibromyalgia syndrome (FMS), a condition that disproportionately affects women. As part of a broader investigation, researchers conducted a transcriptome-wide analysis of alternative splicing (AS) in the peripheral immune cells of FMS patients, comparing them to healthy controls.
The findings suggest that alterations in AS may play a role in the disease's development and progression, with one candidate gene standing out: GNLY, which encodes the cytolytic enzyme granulysin.
Fibromyalgia, affecting 1 to 2 percent of the general population, has been linked to an overactive immune system in recent years. While previous research has hinted at the involvement of immune cells, there has been a lack of comprehensive investigation into the specific role of AS in FMS. To address this gap, the study utilized a deconvolution method called ABIS to estimate the composition of peripheral immune cells in blood samples from 91 FMS patients and 41 healthy controls.
The results showed that FMS patients had lower levels of conventional monocytes, which are known to play a key role in immune response, while memory B cells, another crucial component of the immune system, were significantly higher. By applying a more refined analysis that took into account the complex immune cell composition, researchers identified 14 significant intron clusters, nine of which were deemed worthy of biological interpretation.
Among these, GNLY emerged as the most promising candidate, demonstrating a notable shift in splicing patterns when compared to controls.
The authors emphasize that this study is the first to perform a transcriptome-wide differential AS analysis directly on RNA-sequencing data from individuals with FMS. By capturing changes in splicing that traditional gene-level expression analysis might miss, the study highlights the importance of considering AS in the understanding and potential treatment of FMS.
The findings suggest that GNLY, a gene previously associated with immune response, could be a valuable target for further investigation in the quest to better understand and manage this complex condition.
Written by urgent.news from bioRxiv's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
