Evidence map›Paper›PMID 27374772›Full record

ArticleAmerican journal of human genetics2016

Identification and Functional Characterization of RSPO2 as a Susceptibility Gene for Ossification of the Posterior Longitudinal Ligament of the Spine.

Masahiro Nakajima, Ikuyo Kou, Hirofumi Ohashi, Genetic Study Group of the Investigation Committee on the Ossification of Spinal Ligaments, Shiro Ikegawa

Open access · bronzeAbstract read
In one paragraph

Article in American journal of human genetics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
2.8field-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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 61 citations in OpenAlex.

  1. Pooled it
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  4. [Radiological characteristics and associated factors of single-level cervical disc herniation combining with focal ossification of posterior longitudinal ligament].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
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  8. Patients with a large ossification of the posterior longitudinal ligament have a higher incidence of arteriosclerosis in the carotid artery.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2024
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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 2 institutions in 1 country.

Masahiro NakajimaLaboratory for Bone and Joint Diseases, Center for Integrative Medical Sciences, RIKEN, Tokyo 108-8639, Japan.
Ikuyo KouLaboratory for Bone and Joint Diseases, Center for Integrative Medical Sciences, RIKEN, Tokyo 108-8639, Japan.
Hirofumi OhashiDivision of Medical Genetics, Saitama Children's Medical Center, Saitama 339-8551, Japan.
Genetic Study Group of the Investigation Committee on the Ossification of Spinal Ligaments
Shiro IkegawaLaboratory for Bone and Joint Diseases, Center for Integrative Medical Sciences, RIKEN, Tokyo 108-8639, Japan. Electronic address: sikegawa@ims.u-tokyo.ac.jp.
RIKEN Center for Integrative Medical Sciences · JPSaitama Children's Medical Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ossification of the posterior longitudinal ligament of the spine (OPLL) is a common spinal disorder that results from ectopic ossification of the posterior longitudinal ligament and causes intractable myelopathy and radiculopathy. In a previous genome-wide association study (GWAS), we found six loci associated with OPLL; however, susceptibility genes in these loci have not been identified yet. Here, we examined one of the GWAS loci and identified RSPO2 (encoding R-spondin 2) as a susceptibility gene for OPLL. R-spondin 2 is a secreted agonist of canonical Wnt-β-catenin signaling. RSPO2 was decreased in the early stage of chondrocyte differentiation. R-spondin 2 inhibited expression of genes encoding early chondrocyte differentiation markers by activating Wnt-β-catenin signaling. rs374810, the most significantly associated SNP in the GWAS locus in chromosomal region 8q23.1 was located in the chondrocyte promoter region of RSPO2. A transcription factor, CCAAT-enhancer-binding protein β (C/EBPβ), specifically bound to the RSPO2 core promoter region containing rs374810 and increased RSPO2 expression. The risk allele of rs374810 affected the binding of the promoter with C/EBPβ and decreased the RSPO2 transcription in vitro and in vivo. Our genetic and functional data indicate that RSPO2 is a susceptibility gene for OPLL.

Indexed as

beta CateninCell LineGenetic Predisposition to DiseaseHumansIntercellular Signaling Peptides and ProteinsOssification of Posterior Longitudinal LigamentPolymorphism, Single NucleotideR-SpondinsWnt Signaling Pathwaybeta CateninIntercellular Signaling Peptides and ProteinsRspo2 protein, humanR-Spondins

Identifiers

PMID27374772
PMCPMC5005442
OpenAlexW2462454527

What OpenQuestion holds

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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.