Evidence map›Paper›PMID 33941256›Full record

ArticleStem cell research & therapy2021

Upregulating CXCR7 accelerates endothelial progenitor cell-mediated endothelial repair by activating Akt/Keap-1/Nrf2 signaling in diabetes mellitus.

Chunyu Jiang, Ruiting Li, Chaoyang Xiu, Xu Ma, Hui Hu, Liming Wei, Yihan Tang, Mingyang Tao, Jungong Zhao

Open access · goldAbstract read
In one paragraph

Article in Stem cell research & therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

14 citing papers in PubMed, 26 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

9 authors at 4 institutions in 1 country.

Chunyu Jiang *Department of Interventional Therapy, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University of Medicine, No. 639 Zhi Zao Ju Road, Shanghai, 200233, People's Republic of China.
Ruiting Li *Department of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai, 200233, People's Republic of China.
Chaoyang Xiu *Department of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai, 200233, People's Republic of China.
Xu MaDepartment of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai, 200233, People's Republic of China.
Hui HuDepartment of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai, 200233, People's Republic of China.
Liming WeiDepartment of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai, 200233, People's Republic of China.
Yihan TangInstitute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, People's Republic of China.
Mingyang TaoInstitute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, People's Republic of China.
Jungong ZhaoDepartment of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai, 200233, People's Republic of China. zhaojungongradio@hotmail.com.
Shanghai Jiao Tong University · CNShanghai Sixth People's Hospital · CNYangzhou University · CNShanghai Ninth People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEndothelial progenitor cell (EPC) dysfunction contributes to vascular disease in diabetes mellitus. However, the molecular mechanism underlying EPC dysfunction and its contribution to delayed reendothelialization in diabetes mellitus remain unclear. Our study aimed to illustrate the potential molecular mechanism underlying diabetic EPC dysfunction in vivo and in vitro. Furthermore, we assessed the effect of EPC transplantation on endothelial regeneration in diabetic rats.

methodsLate outgrowth EPCs were isolated from the bone marrow of rats for in vivo and in vitro studies. In vitro functional assays and Western blotting were conducted to reveal the association between C-X-C chemokine receptor type 7 (CXCR7) expression and diabetic EPC dysfunction. To confirm the association between cellular CXCR7 levels and EPC function, CXCR7 expression in EPCs was upregulated and downregulated via lentiviral transduction and RNA interference, respectively. Western blotting was used to reveal the potential molecular mechanism by which the Stromal-Derived Factor-1 (SDF-1)/CXCR7 axis regulates EPC function. To elucidate the role of the SDF-1/CXCR7 axis in EPC-mediated endothelial regeneration, a carotid artery injury model was established in diabetic rats. After the model was established, saline-treated, diabetic, normal, or CXCR7-primed EPCs were injected via the tail vein.

resultsDiabetic EPC dysfunction was associated with decreased CXCR7 expression. Furthermore, EPC dysfunction was mimicked by knockdown of CXCR7 in normal EPCs. However, upregulating CXCR7 expression reversed the dysfunction of diabetic EPCs. The SDF-1/CXCR7 axis positively regulated EPC function by activating the AKT-associated Kelch-like ECH-associated protein 1 (keap-1)/nuclear factor erythroid 2-related factor 2 (Nrf2) axis, which was reversed by blockade of AKT and Nrf2. Transplantation of CXCR7-EPCs accelerated endothelial repair and attenuated neointimal hyperplasia in diabetes mellitus more significantly than transplantation of diabetic or normal EPCs. However, the therapeutic effect of CXCR7-EPC transplantation on endothelial regeneration was reversed by knockdown of Nrf2 expression.

conclusionsDysfunction of diabetic EPCs is associated with decreased CXCR7 expression. Furthermore, the SDF-1/CXCR7 axis positively regulates EPC function by activating the AKT/keap-1/Nrf2 axis. CXCR7-primed EPCs might be useful for endothelial regeneration in diabetes-associated vascular disease.

Indexed as

Diabetes Mellitus, ExperimentalEndothelial Progenitor CellsAnimalsNF-E2-Related Factor 2Proto-Oncogene Proteins c-aktRatsReceptors, CXCRSignal TransductionAckr3 protein, ratNF-E2-Related Factor 2Proto-Oncogene Proteins c-aktReceptors, CXCRCXCR7Diabetes mellitusEndothelial progenitor cellsNeointimal hyperplasiaNrf2Reendothelialization

Identifiers

PMID33941256
PMCPMC8091720
OpenAlexW3157714279

What OpenQuestion holds

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LicenceCC BY
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.