ArticleInternational journal of molecular sciences2015
Acute Endoplasmic Reticulum Stress-Independent Unconventional Splicing of XBP1 mRNA in the Nucleus of Mammalian Cells.
Article in International journal of molecular sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed.
- Navigating Cellular Stress: Endoplasmic Reticulum Stress and the Unfolded Protein Response in the Molecular Pathogenesis of Preeclampsia.Cell biochemistry and biophysics · 2025Review
- Molecular mechanisms underlying TNFα-induced mitochondrial fragmentation in human airway smooth muscle cells.American journal of physiology. Lung cellular and molecular physiology · 2024Article
- Comprehensive mendelian randomization reveals atrial fibrillation-breast cancer relationship and explores common druggable targets.Frontiers in pharmacology · 2024Article
- REST/NRSF Silencing Modifies Neuronal Gene Expression in siRNA-Treated HeLa Cells: A Preliminary Exploration in the Search for Neuronal Biomarkers of Cervical Cancer.Medicina (Kaunas, Lithuania) · 2023Article
- Regulation of Archease by the mTOR-vATPase axis.Development (Cambridge, England) · 2022Article
- XBP1 impacts lung adenocarcinoma progression by promoting plasma cell adaptation to the tumor microenvironment.Frontiers in genetics · 2022Article
- Gene-associated methylation status of ST14 as a predictor of survival and hormone receptor positivity in breast Cancer.BMC cancer · 2021Article
- CHOP Pro-Apoptotic Transcriptional Program in Response to ER Stress Is Hacked by Zika Virus.International journal of molecular sciences · 2021Article
- SRP54 mutations induce congenital neutropenia via dominant-negative effects on XBP1 splicing.Blood · 2021Article
- The Structure, Activation and Signaling of IRE1 and Its Role in Determining Cell Fate.Biomedicines · 2021Review
- Review
- Inhibition of IRE1α-mediated XBP1 mRNA cleavage by XBP1 reveals a novel regulatory process during the unfolded protein response.Wellcome open research · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The regulation of expression of X-box-binding protein-1 (XBP1), a transcriptional factor, involves an unconventional mRNA splicing that removes the 26 nucleotides intron. In contrast to the conventional splicing that exclusively takes place in the nucleus, determining the location of unconventional splicing still remains controversial. This study was designed to examine whether the unconventional spicing of XBP1 mRNA could occur in the nucleus and its possible biological relevance. We use RT-PCR reverse transcription system and the expand high fidelity PCR system to detect spliced XBP1 mRNA, and fraction cells to determine the location of the unconventional splicing of XBP1 mRNA. We employ reporter constructs to show the presence of unconventional splicing machinery in mammal cells independently of acute endoplasmic reticulum (ER) stress. Our results reveal the presence of basal unconventional splicing of XBP1 mRNA in the nucleus that also requires inositol-requiring transmembrane kinase and endonuclease 1α (IRE1α) and can occur independently of acute ER stress. Furthermore, we confirm that acute ER stress induces the splicing of XBP1 mRNA predominantly occurring in the cytoplasm, but it also promotes the splicing in the nucleus. The deletion of 5'-nucleotides in XBP1 mRNA significantly increases its basal unconventional splicing, suggesting that the secondary structure of XBP1 mRNA may determine the location of unconventional splicing. These results suggest that the unconventional splicing of XBP1 mRNA can take place in the nucleus and/or cytoplasm, which possibly depends on the elaborate regulation. The acute ER stress-independent unconventional splicing in the nucleus is most likely required for the maintaining of day-to-day folding protein homeostasis.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.