Evidence map›Paper›PMID 34685716›Full record

ArticleCells2021

A Cardiac Mitochondrial FGFR1 Mediates the Antithetical Effects of FGF2 Isoforms on Permeability Transition.

Wattamon Srisakuldee, Barbara E Nickel, Robert R Fandrich, Feixong Zhang, Kishore B S Pasumarthi, Elissavet Kardami

Open access · goldAbstract read
In one paragraph

Article in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.2field-weighted citation impact, top 50% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
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

6 authors at 2 institutions in 1 country.

Wattamon SrisakuldeeDepartment of Physiology & Pathophysiology, University of Manitoba, Winnipeg, MB R3E 0J9, Canada.ORCID 0000-0001-6053-8601
Barbara E NickelSt. Boniface Research Centre, Institute of Cardiovascular Sciences, Winnipeg, MB R2H 2A6, Canada.
Robert R FandrichSt. Boniface Research Centre, Institute of Cardiovascular Sciences, Winnipeg, MB R2H 2A6, Canada.
Feixong ZhangDepartment of Pharmacology, Faculty of Medicine, Dalhousie University, Halifax, NS B3H 4R2, Canada.
Kishore B S PasumarthiDepartment of Pharmacology, Faculty of Medicine, Dalhousie University, Halifax, NS B3H 4R2, Canada.
Elissavet KardamiDepartment of Physiology & Pathophysiology, University of Manitoba, Winnipeg, MB R3E 0J9, Canada.
St. Boniface Hospital · CADalhousie University · CA

Funding

CIHR 74733Heart and Stroke Foundation of Canada 310112340700
6 · The paper itself

Abstract

Mitochondria, abundant organelles in high energy demand cells such as cardiomyocytes, can determine cell death or survival by regulating the opening of mitochondrial permeability transition pore, mPTP. We addressed the hypothesis that the growth factor FGF2, known to reside in intracellular locations, can directly influence mitochondrial susceptibility to mPTP opening. Rat cardiac subsarcolemmal (SSM) or interfibrillar (IFM) mitochondrial suspensions exposed directly to rat 18 kDa low molecular weight (Lo-) FGF2 isoform displayed increased resistance to calcium overload-induced mPTP, measured spectrophotometrically as "swelling", or as cytochrome c release from mitochondria. Inhibition of mitochondrial protein kinase C epsilon abrogated direct Lo-FGF2 mito-protection. Exposure to the rat 23 kDa high molecular weight (Hi) FGF2 isoform promoted cytochrome c release from SSM and IFM under nonstressed conditions. The effect of Hi-FGF2 was prevented by mPTP inhibitors, pre-exposure to Lo-FGF2, and okadaic acid, a serine/threonine phosphatase inhibitor. Western blotting and immunoelectron microscopy pointed to the presence of immunoreactive FGFR1 in cardiac mitochondria in situ. The direct mito-protective effect of Lo-FGF2, as well as the deleterious effect of Hi-FGF2, were prevented by FGFR1 inhibitors and FGFR1 neutralizing antibodies. We propose that intracellular FGF2 isoforms can modulate mPTP opening by interacting with mito-FGFR1 and relaying isoform-specific intramitochondrial signal transduction.

Indexed as

AnimalsCalciumCytochromes cFibroblast Growth Factor 2MaleMitochondria, HeartMitochondrial Permeability Transition PoreProtein IsoformsProtein Kinase C-epsilonRatsRats, Sprague-DawleyReceptor, Fibroblast Growth Factor, Type 1CalciumCytochromes cFibroblast Growth Factor 2Mitochondrial Permeability Transition PoreProtein IsoformsProtein Kinase C-epsilonReceptor, Fibroblast Growth Factor, Type 1FGF2 isoformsFGFR1intramitochondrial signallingmitochondriapermeability transition

Identifiers

PMID34685716
PMCPMC8534529
OpenAlexW3207538814

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.