Evidence map›Paper›PMID 15901833›Full record

ArticleMolecular biology of the cell2005

Basal activation of the P2X7 ATP receptor elevates mitochondrial calcium and potential, increases cellular ATP levels, and promotes serum-independent growth.

Elena Adinolfi, Maria Giulia Callegari, Davide Ferrari, Chiara Bolognesi, Mattia Minelli, Mariusz R Wieckowski, Paolo Pinton, Rosario Rizzuto, Francesco Di Virgilio

Erratum issuedAbstract read
In one paragraph

Article in Molecular biology of the cell, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 170 papers.

0numbers the graph read from it
0cells of the map it votes in
170citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

170 citing papers in PubMed, 275 citations in OpenAlex.

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  10. Targeting P2X Receptors-Current Progress in Sepsis.International journal of inflammation · 2025
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110 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Elena AdinolfiDepartment of Experimental and Diagnostic Medicine, Section of General Pathology, and Interdisciplinary Center for the Study of Inflammation, University of Ferrara, 44100 Ferrara, Italy.
Maria Giulia Callegari
Davide Ferrari
Chiara Bolognesi
Mattia Minelli
Mariusz R Wieckowski
Paolo Pinton
Rosario Rizzuto
Francesco Di Virgilio
University of Ferrara · IT

Funding

Telethon 961
6 · The paper itself

Abstract

P2X7 is a bifunctional receptor (P2X7R) for extracellular ATP that, depending on the level of activation, forms a cation-selective channel or a large conductance nonselective pore. The P2X7R has a strong proapoptotic activity but can also support growth. Here, we describe the mechanism involved in growth stimulation. Transfection of P2X7R increases resting mitochondrial potential (delta psi(mt)), basal mitochondrial Ca2+ ([Ca2+]mt), intracellular ATP content, and confers ability to grow in the absence of serum. These changes require a full pore-forming function, because they are abolished in cells transfected with a mutated P2X7R that retains channel activity but cannot form the nonselective pore, and depend on an autocrine/paracrine tonic stimulation by secreted ATP. On the other hand, sustained stimulation of P2X7R causes a delta psi(mt) drop, a large increase in [Ca2+]mt, mitochondrial fragmentation, and cell death. These findings reveal a hitherto undescribed mechanism for growth stimulation by a plasma membrane pore.

Indexed as

Adenosine TriphosphateAnimalsCalciumCell LineCell MembraneCell ProliferationCulture Media, Serum-FreeCytosolGene DeletionHeLa CellsHumansIonsMembrane PotentialsMitochondriaModels, MolecularReceptors, Purinergic P2Adenosine TriphosphateCalciumCulture Media, Serum-FreeIonsP2RX7 protein, humanReceptors, Purinergic P2Receptors, Purinergic P2X7

Identifiers

PMID15901833
PMCPMC1165409
OpenAlexW2116371476

What OpenQuestion holds

Textmetadata
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.