Evidence map›Paper›PMID 32952661›Full record

ArticleOncology letters2020

A novel definition of microvessel density in renal cell carcinoma: Angiogenesis plus vasculogenic mimicry.

Yanyuan Wu, Kun Du, Wenbin Guan, Di Wu, Haixiao Tang, Ning Wang, Jun Qi, Zhengqin Gu, Junyao Yang, Jie Ding

Open access · diamondAbstract read
In one paragraph

Article in Oncology letters, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 20% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 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

10 authors at 3 institutions in 1 country.

Yanyuan WuDepartment of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200092, P.R. China.
Kun DuDepartment of Laboratory, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200092, P.R. China.
Wenbin GuanDepartment of Pathology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200092, P.R. China.
Di WuDepartment of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200092, P.R. China.
Haixiao TangDepartment of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200092, P.R. China.
Ning WangDepartment of Urology, The People's Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China.
Jun QiDepartment of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200092, P.R. China.
Zhengqin GuDepartment of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200092, P.R. China.
Junyao YangDepartment of Laboratory, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200092, P.R. China.
Jie DingDepartment of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200092, P.R. China.
Shanghai Jiao Tong University · CNXinHua Hospital · CNZhengzhou University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The present study proposed the novel concept of total microvessel density (TMVD), which is the combination of the MVD and the vasculogenic mimicry (VM) status, and evaluated its clinical significance in patients with renal cell carcinoma (RCC). For that purpose, tumor samples from 183 patients with primary RCC were examined by CD34 single or periodic acid Schiff (PAS)/CD34 dual histology staining. MVD and VM were determined according to previous literature. Clinical information (tumor stage and grade, and duration of survival) was retrieved and analyzed. Survival information and VM-associated gene expression data of patients with RCC were also retrieved from The Cancer Genome Atlas (TCGA) database and the clinical significance of each individual gene was analyzed. The results indicated that MVD exhibited obvious differences among patients with RCC; however, it was not correlated with the stage/grade or length of survival in patients with RCC. In total, 81 patients (44.3%) were CD34(-)/PAS(+) and defined as VM(+), and they had a significantly shorter survival compared with that of VM(-) patients (P=0.0002). VM was not associated with MVD. TMVD was able to distinguish between patients with high and low MVD in terms of survival, thus TMVD was better compared with MVD alone at distinguishing between patients with different survival prognoses. TCGA data analysis revealed that among the VM-associated genes, nodal growth differentiation factor, caspase-3, matrix metalloproteinase-9 and galectin-3 had a statistically significant impact on the overall/disease-free survival of patients with RCC. In conclusion, the TMVD concept may be more appropriate and sensitive compared with the MVD or VM alone in predicting tumor aggressiveness and patient survival, particularly in RCC, which is a highly vascularized, VM-rich neoplasm, and certain VM formation-associated genes are negatively associated with the survival of patients with RCC.

Indexed as

immunohistochemical stainingmicrovessel densityrenal cell carcinomaTCGA databasevasculogenic mimicry

Identifiers

PMID32952661
PMCPMC7479517
OpenAlexW3083414249

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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.