Evidence map›Paper›PMID 21952831›Full record

ArticleCalcified tissue international2011

Abrogation of Cbl-PI3K interaction increases bone formation and osteoblast proliferation.

Tracy Brennan, Naga Suresh Adapala, Mary F Barbe, Vanessa Yingling, Archana Sanjay

Open access · hybridAbstract read
In one paragraph

Article in Calcified tissue international, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

34 citing papers in PubMed, 42 citations in OpenAlex.

  1. Research progress on the regulation of miRNAs in diabetic kidney disease and osteoporosis.International journal of clinical and experimental pathology · 2026
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  13. Deubiquitinating Enzymes and Bone Remodeling.Stem cells international · 2018
    Review
  14. Article
  15. Article
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  18. Celecoxib sensitizes gastric cancer to rapamycin via inhibition of the Cbl-b-regulated PI3K/Akt pathway.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
    Article
  19. Review
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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

5 authors at 1 institution in 1 country.

Tracy BrennanDepartment of Anatomy and Cell Biology, Temple University School of Medicine, Philadelphia, PA, USA.
Naga Suresh Adapala
Mary F Barbe
Vanessa Yingling
Archana Sanjay
Temple University · US

Funding

Regulation of Osteoclast Function : Role of the Cbl-PI3K ComplexR01AR055601 · NIAMS · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI SANJAY, ARCHANA · 2008 to 2012
$1.6M
High-resolution ex vivo micro-computerized tomography systemS10RR026727 · NCRR · TEMPLE UNIV OF THE COMMONWEALTH · PI BARBE, MARY F · 2010 to 2010
$308k
NCRR NIH HHS S10 RR026727NIAMS NIH HHS AR055601NIAMS NIH HHS R01 AR055601
6 · The paper itself

Abstract

Cbl is an adaptor protein and E3 ligase that plays both positive and negative roles in several signaling pathways that affect various cellular functions. Tyrosine 737 is unique to Cbl and phosphorylated by Src family kinases. Phosphorylated CblY737 creates a binding site for the p85 regulatory subunit of phosphatidylinositol 3 kinase (PI3K) that also plays an important role in the regulation of bone homeostasis. To investigate the role of Cbl-PI3K interaction in bone homeostasis, we examined knock-in mice in which the PI3K binding site on Cbl was ablated due to the substitution of tyrosine 737 to phenylalanine (Cbl(YF/YF), YF mice). We previously reported that bone volume in these mice is increased due to decreased osteoclast function (Adapala et al., J Biol Chem 285:36745-36758, 19). Here, we report that YF mice also have increased bone formation and osteoblast numbers. In ex vivo cultures bone marrow-derived YF osteoblasts showed increased Col1A expression and their proliferation was also significantly augmented. Moreover, proliferation of MC3T3-E1 cells was increased after treatment with conditioned medium generated by culturing YF bone marrow stromal cells. Expression of stromal derived factor-1 (SDF-1) was increased in YF bone marrow stromal cells compared to wild type. Increased immunostaining of SDF-1 and CXCR4 was observed in YF bone marrow stromal cells compared to wild type. Treatment of YF condition medium with neutralizing anti-SDF-1 and anti-CXCR4 antibodies attenuated MC3T3-E1 cell proliferation. Cumulatively, these results show that abrogation of Cbl-PI3K interaction perturbs bone homeostasis, affecting both osteoclast function and osteoblast proliferation.

Indexed as

Cell ProliferationAnimalsBone and BonesMiceMice, KnockoutOsteoblastsOsteogenesisPhosphatidylinositol 3-KinaseProto-Oncogene Proteins c-cblPhosphatidylinositol 3-KinaseProto-Oncogene Proteins c-cbl

Identifiers

PMID21952831
PMCPMC3191294
OpenAlexW2041782533

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.