ArticleNature communications2025
RHOA regulates mitochondria-ER contact sites through modulation of the VAPB/PTPIP51 tether.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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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
7 citing papers in PubMed.
- RhoA through its various effectors mediate mitochondrial fragmentation in polycystic kidney disease.iScience · 2026Article
- PFKM acts as a metabolic switch initiating donut-shaped mitochondrial remodeling to promote osteogenesis.International journal of oral science · 2026Article
- MAMs-Mediated Calcium Homeostasis in the Pathophysiology of Cardiovascular Diseases: A Mini-Review.Drug design, development and therapy · 2026Review
- Dynamic imbalance of mitochondria-associated ER membranes in cardiovascular disease: mechanisms, context dependence and therapeutic potential.Frontiers in cell and developmental biology · 2026Review
- Humanized hiPSC Platforms for I/R Injury: Advancing Toward Precision Cardioprotection.Cardiovascular therapeutics · 2026Review
- Genetically Encoded Tools to Monitor and Interrogate Membrane Contact Sites.Contact (Thousand Oaks (Ventura County, Calif.))Review
- Approaches to Organelle Spacing at Membrane Contact Sites.Contact (Thousand Oaks (Ventura County, Calif.))Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
The mitochondria-endoplasmic reticulum contact site (MERCS) is critical for calcium exchange, phospholipid transfer, and bioenergetics. Impairment of MERCS is implicated in numerous pathological conditions, including cancer and neurodegenerative diseases. Remodeling of MERCS can affect calcium signaling or metabolism, but the mechanisms involved in dynamic MERCS remodeling are unknown. Employing a genome-wide CRISPRi screen, we uncover the ability of the small GTPase RHOA to tune the cellular MERCS level. RHOA knockdown, or increasing its degradation by CUL3 overexpression, reduces the MERCS level; conversely, upregulation of RHOA increases the MERCS level. RHOA binds to the ER protein VAPB and regulates complex formation between VAPB and mitochondrial PTPIP51, which form a tethering complex at the interface between ER and mitochondria. Furthermore, this regulatory mechanism is perturbed by disease alleles of RHOA, CUL3, and VAPB involved in cancer, hyperkalemia, and neurodegeneration, suggesting that MERCS may be affected in a range of pathological conditions. This study identifies RHOA as a regulator of mitochondria-ER communication, providing mechanistic insights into the dynamic remodeling of MERCS and potential therapeutic strategies for diseases linked to MERCS dysfunction.
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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.