Evidence map›Paper›PMID 25292314›Full record

ArticleMolecular and cellular biochemistry2015

Type-2 cannabinoid receptor regulates proliferation, apoptosis, differentiation, and OPG/RANKL ratio of MC3T3-E1 cells exposed to Titanium particles.

Shang Qiu, Fengchao Zhao, Xianye Tang, Fang Pei, Hongyan Dong, Liang Zhu, Kaijin Guo

Abstract read
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Article in Molecular and cellular biochemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.5field-weighted citation impact, top 14% 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

8 citing papers in PubMed, 15 citations in OpenAlex.

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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

7 authors at 2 institutions in 1 country.

Shang QiuOrthopaedic Department of Affiliated Hospital of Xuzhou Medical College, Jiangsu, 223000, China.
Fengchao Zhao
Xianye Tang
Fang Pei
Hongyan Dong
Liang Zhu
Kaijin Guo
Affiliated Hospital of Xuzhou Medical College · CNXuzhou Medical College · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The type-2 cannabinoid receptor (CB2) is expressed in osteoblasts and plays a role in bone metabolism through regulation on bone mass and bone turnover, but the functional importance of CB2 in osteoblasts under Titanium (Ti) stimulation is incompletely understood. This study aimed to investigate the CB2 expression in osteoblasts under Ti stimulation and the effects of CB2 activation on proliferation, apoptosis, differentiation, mineralization, OPG, and RANKL expression of MC3T3-E1 cells exposed to Ti particles. MC3T3-E1 cells were incubated in the presence of Ti particles with or without CB2-specific agonist HU-308 and antagonist SR144528. Ti particles treatment obviously induced the CB2 expression in MC3T3-E1 cells, and reduced the cell survival in a dose- and time-dependent manner (p < 0.05). Addition of HU-308 could dose-dependently alleviate the Ti-induced decrease of cell survival (p < 0.05). The flow cytometry assay showed that comparing with the control group, the apoptosis rate and caspase-3 activity in the Ti group were significantly elevated (p < 0.05), which could be alleviated by HU-308. Moreover, HU-308 effectively attenuated the decrease of cell mineralization capability, alkaline phosphates (ALP) and osteocalcin activity, and increase of OPG/RANKL ratio induced by Ti particles treatment (p < 0.05). These effects were partially counteracted by combined treatment of CB2 antagonist SR144528 (p < 0.05). In conclusion, CB2 activation has a favorable inhibitory effect on Ti-induced reactions in MC3T3-E1 cell through modulating proliferation, apoptosis, differentiation, and RANKL expression. These findings suggest that activation of CB2 might be an effective therapeutic strategy to promote bone formation and reduce bone dissolution.

Indexed as

ApoptosisCell DifferentiationCell Proliferation3T3 CellsAlkaline PhosphataseAnimalsCalcification, PhysiologicCell SurvivalCollagen Type IMiceOsteocalcinOsteoprotegerinProsthesis FailureRANK LigandReceptor, Cannabinoid, CB2TitaniumAlkaline PhosphataseCollagen Type IOsteocalcinOsteoprotegerinRANK LigandReceptor, Cannabinoid, CB2TitaniumTnfrsf11b protein, mouseTnfsf11 protein, mouse

Identifiers

PMID25292314
OpenAlexW1991552535

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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.