ArticleAmerican journal of physiology. Heart and circulatory physiology2024
BAG3 localizes to mitochondria in cardiac fibroblasts and regulates mitophagy.
Article in American journal of physiology. Heart and circulatory physiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 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
9 citing papers in PubMed, 8 citations in OpenAlex.
- Article
- BAG3 concentrations and heart failure events among individuals undergoing coronary and peripheral angiography.NPJ cardiovascular health · 2025Article
- The Role of Mitochondria-Associated Endoplasmic Reticulum Membranes in Fibrotic Diseases.Aging and disease · 2025Review
- The BAG3-HSP70-CHIP axis controls the degradation of TGFBR2 in cardiac fibroblasts.Journal of molecular and cellular cardiology · 2025Article
- YTHDF3-mediated FLCN/cPLA2 axis improves cardiac fibrosis via suppressing lysosomal function.Acta pharmacologica Sinica · 2025Article
- BAG3 in human tumors.Frontiers in oncology · 2025Article
- 2'-Hydroxycinnamaldehyde, a Natural Product from Cinnamon, Alleviates Ischemia/Reperfusion-Induced Microvascular Dysfunction and Oxidative Damage in Rats by Upregulating Cytosolic BAG3 and Nrf2/HO-1.International journal of molecular sciences · 2024Article
- Cardiac fibroblasts: answering the call.American journal of physiology. Heart and circulatory physiology · 2024Review
- Multiple intra-cavitary thrombi in a late-onset dilated cardiomyopathy with severely reduced ejection fraction: A case report and review of the literature.JRSM cardiovascular diseaseArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
The co-chaperone Bcl2-associated athanogene 3 (BAG3) is a central node in protein quality control in the heart. In humans and animal models, decreased BAG3 expression is associated with cardiac dysfunction and dilated cardiomyopathy. Although previous studies focused on BAG3 in cardiomyocytes, cardiac fibroblasts are also critical drivers of pathologic remodeling. Yet, the role of BAG3 in cardiac fibroblasts is almost completely unexplored. Here, we show that BAG3 is expressed in primary rat neonatal cardiac fibroblasts and preferentially localizes to mitochondria. Knockdown of BAG3 reduces mitophagy and enhances fibroblast activation, which is associated with fibrotic remodeling. Heat shock protein 70 (Hsp70) is a critical binding partner for BAG3 and inhibiting this interaction in fibroblasts using the drug JG-98 decreased autophagy, decreased mitofusin-2 expression, and disrupted mitochondrial morphology. Together, these data indicate that BAG3 is expressed in cardiac fibroblasts, where it facilitates mitophagy and promotes fibroblast quiescence. This suggests that depressed BAG3 levels in heart failure may exacerbate fibrotic pathology, thus contributing to myocardial dysfunction through sarcomere-independent pathways.
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.