Evidence map›Paper›PMID 21441933›Full record

ArticleNature immunology2011

CXCL12 secretion by bone marrow stromal cells is dependent on cell contact and mediated by connexin-43 and connexin-45 gap junctions.

Amir Schajnovitz, Tomer Itkin, Gabriele D'Uva, Alexander Kalinkovich, Karin Golan, Aya Ludin, Dror Cohen, Ziv Shulman, Abraham Avigdor, Arnon Nagler and 3 more

Abstract read
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Article in Nature immunology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed
6.7field-weighted citation impact, top 2% 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

105 citing papers in PubMed, 159 citations in OpenAlex.

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  20. Closer to Nature: The Role of MSCs in Recreating the Microenvironment of the Hematopoietic Stem Cell Niche in vitro.Transfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie · 2022
    Review

45 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 3 institutions in 2 countries.

Amir SchajnovitzDepartment of Immunology, Weizmann Institute of Science, Rehovot, Israel.
Tomer Itkin
Gabriele D'Uva
Alexander Kalinkovich
Karin Golan
Aya Ludin
Dror Cohen
Ziv Shulman
Abraham Avigdor
Arnon Nagler
Orit Kollet
Rony Seger
Tsvee Lapidot
Weizmann Institute of Science · ILSheba Medical Center · ILUniversity of Bologna · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The chemokine CXCL12 is essential for the function of hematopoietic stem and progenitor cells. Here we report that secretion of functional CXCL12 from human bone marrow stromal cells (BMSCs) was a cell contact-dependent event mediated by connexin-43 (Cx43) and Cx45 gap junctions. Inhibition of connexin gap junctions impaired the secretion of CXCL12 and homing of leukocytes to mouse bone marrow. Purified human CD34(+) progenitor cells did not adhere to noncontacting BMSCs, which led to a much smaller pool of immature cells. Calcium conduction activated signaling by cAMP-protein kinase A (PKA) and induced CXCL12 secretion mediated by the GTPase RalA. Cx43 and Cx45 additionally controlled Cxcl12 transcription by regulating the nuclear localization of the transcription factor Sp1. We suggest that BMSCs form a dynamic syncytium via connexin gap junctions that regulates CXC12 secretion and the homeostasis of hematopoietic stem cells.

Indexed as

AnimalsBone Marrow CellsCalciumCell MovementChemokine CXCL12Coculture TechniquesConnexinsCyclic AMP-Dependent Protein KinasesGap JunctionsHematopoietic Stem CellsHumansImmunohistochemistryMesenchymal Stem CellsMiceMice, Inbred C57BLMice, KnockoutCalciumChemokine CXCL12ConnexinsCxcl12 protein, mouseCyclic AMP-Dependent Protein KinasesRala protein, mouseral GTP-Binding Proteins

Identifiers

PMID21441933
OpenAlexW1983197681

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.