Evidence map›Paper›PMID 37492967›Full record

ArticleCirculation research2023

Interaction of Filamin C With Actin Is Essential for Cardiac Development and Function.

Xiaohai Zhou, Xi Fang, Sujay Subbayya Ithychanda, Tongbin Wu, Yusu Gu, Chao Chen, Li Wang, Julius Bogomolovas, Jun Qin, Ju Chen

Open access · bronzeAbstract read
In one paragraph

Article in Circulation research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
4.8field-weighted citation impact, top 4% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 22 citations in OpenAlex.

  1. Filamin C activates MAPK/ERK signaling to facilitate epithelial-mesenchymal transition in bladder cancer.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
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  6. Identification of a NovelDiagnostics (Basel, Switzerland) · 2025
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  8. Tailored therapeutics for cardiomyopathies.Nature reviews. Cardiology · 2025
    Review
  9. Transcriptional Readthrough atbioRxiv : the preprint server for biology · 2025
    Article
  10. Article
  11. Article
  12. Article
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  14. α Protein Kinase 3 Is Essential for Neonatal and Adult Cardiac Function.Journal of the American Heart Association · 2025
    Article
  15. Article
  16. Review
  17. Article
  18. Identification of a Missense Mutation in theJournal of multidisciplinary healthcare · 2024
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Xiaohai ZhouDepartment of Medicine (X.Z., X.F., T.W., Y.G., C.C., L.W., J.B., J.C.), University of California San Diego, La Jolla.ORCID 0000-0002-0987-0374
Xi FangDepartment of Medicine (X.Z., X.F., T.W., Y.G., C.C., L.W., J.B., J.C.), University of California San Diego, La Jolla.ORCID 0000-0001-7816-8821
Sujay Subbayya IthychandaDepartment of Cardiovascular and Metabolic Sciences (S.S.I., J.Q.), Lerner Research Institute, Cleveland Clinic, OH.
Tongbin WuDepartment of Medicine (X.Z., X.F., T.W., Y.G., C.C., L.W., J.B., J.C.), University of California San Diego, La Jolla.
Yusu GuDepartment of Medicine (X.Z., X.F., T.W., Y.G., C.C., L.W., J.B., J.C.), University of California San Diego, La Jolla.ORCID 0000-0002-9543-8472
Chao ChenDepartment of Medicine (X.Z., X.F., T.W., Y.G., C.C., L.W., J.B., J.C.), University of California San Diego, La Jolla.
Li WangDepartment of Medicine (X.Z., X.F., T.W., Y.G., C.C., L.W., J.B., J.C.), University of California San Diego, La Jolla.ORCID 0000-0002-6586-2571
Julius BogomolovasDepartment of Medicine (X.Z., X.F., T.W., Y.G., C.C., L.W., J.B., J.C.), University of California San Diego, La Jolla.
Jun QinDepartment of Cardiovascular and Metabolic Sciences (S.S.I., J.Q.), Lerner Research Institute, Cleveland Clinic, OH.ORCID 0000-0002-2647-9270
Ju ChenDepartment of Medicine (X.Z., X.F., T.W., Y.G., C.C., L.W., J.B., J.C.), University of California San Diego, La Jolla.ORCID 0000-0001-7674-4776
University of California San Diego · USCleveland Clinic Lerner College of Medicine · US

Funding

Project 3- Role of Leukocyte-Platelet Interactions in Inflammation and ThrombosisP01HL154811 · NHLBI · CLEVELAND CLINIC LERNER COM-CWRU · PI SIMON, DANIEL I · 2021 to 2025
$12.1M
Training In Cardiovascular Physiology & PharmacologyT32HL007444 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Ju Chen, Robert Scott Ross · 1985 to 2026
$11.1M
U of Calif, San Diego Neuroscience Microscopy ImagingP30NS047101 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GLEESON, JOSEPH G, ZHENG, BINHAI · 2003 to 2022
$9.0M
Prune Belly Syndrome: Mechanisms of Filamin A MutationsR01DK127589 · NIDDK · UT SOUTHWESTERN MEDICAL CENTER · PI BAKER, LINDA A., QIN, JUN · 2020 to 2024
$2.5M
Protein Kinase Novel 2 (PKN2) in heartR01HL155826 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI CHEN, JU · 2021 to 2024
$2.2M
ATF4 a Novel Regulator of Cardiac DevelopmentR01HL164549 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Ju Chen · 2023 to 2026
$2.2M
Nuclear envelope protein LEMD2 in heartR01HL158981 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI CHEN, JU · 2021 to 2024
$2.2M
PRDM16 in cardiac developmentR01HL153032 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI CHEN, JU · 2020 to 2023
$1.6M
The Cardiac Role of Filamin CR01HL144872 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI CHEN, JU · 2019 to 2022
$1.6M
ALPK3 in cardiac function and diseaseR01HL146759 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI CHEN, JU · 2019 to 2022
$1.6M
NHLBI NIH HHS P01 HL154811NHLBI NIH HHS R01 HL144872NHLBI NIH HHS R01 HL146759NHLBI NIH HHS R01 HL153032NHLBI NIH HHS R01 HL155826NHLBI NIH HHS R01 HL158981NHLBI NIH HHS R01 HL164549NHLBI NIH HHS T32 HL007444NIDDK NIH HHS R01 DK127589NINDS NIH HHS P30 NS047101
6 · The paper itself

Abstract

backgroundFLNC (filamin C), a member of the filamin family predominantly expressed in striated muscles, plays a crucial role in bridging the cytoskeleton and ECM (extracellular matrix) in cardiomyocytes, thereby maintaining heart integrity and function. Although genetic variants within the N-terminal ABD (actin-binding domain) of FLNC have been identified in patients with cardiomyopathy, the precise contribution of the actin-binding capability to FLNC's function in mammalian hearts remains poorly understood.

methodsWe conducted in silico analysis of the 3-dimensional structure of mouse FLNC to identify key amino acid residues within the ABD that are essential for FLNC's actin-binding capacity. Subsequently, we performed coimmunoprecipitation and immunofluorescent assays to validate the in silico findings and assess the impact of these mutations on the interactions with other binding partners and the subcellular localization of FLNC. Additionally, we generated and analyzed knock-in mouse models in which the FLNC-actin interaction was completely disrupted by these mutations.

resultsOur findings revealed that F93A/L98E mutations completely disrupted FLNC-actin interaction while preserving FLNC's ability to interact with other binding partners ITGB1 (β1 integrin) and γ-SAG (γ-sarcoglycan), as well as maintaining FLNC subcellular localization. Loss of FLNC-actin interaction in embryonic cardiomyocytes resulted in embryonic lethality and cardiac developmental defects, including ventricular wall malformation and reduced cardiomyocyte proliferation. Moreover, disruption of FLNC-actin interaction in adult cardiomyocytes led to severe dilated cardiomyopathy, enhanced lethality and dysregulation of key cytoskeleton components.

conclusionsOur data strongly support the crucial role of FLNC as a bridge between actin filaments and ECM through its interactions with actin, ITGB1, γ-SAG, and other associated proteins in cardiomyocytes. Disruption of FLN-actin interaction may result in detachment of actin filaments from the extracellular matrix, ultimately impairing normal cardiac development and function. These findings also provide insights into mechanisms underlying cardiomyopathy associated with genetic variants in FLNC ABD and other regions.

Indexed as

ActinsCardiomyopathiesAnimalsFilaminsMammalsMiceMuscle, SkeletalMutationMyocytes, CardiacActinsFilaminsactinscardiomyopathiesfilamins

Identifiers

PMID37492967
PMCPMC10529502
OpenAlexW4385264475

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Registered trials

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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.