Evidence map›Paper›PMID 18420490›Full record

ArticleDiabetes2008

Improved vascular engraftment and graft function after inhibition of the angiostatic factor thrombospondin-1 in mouse pancreatic islets.

Johan Olerud, Magnus Johansson, Jack Lawler, Nils Welsh, Per-Ola Carlsson

Open access · bronzeAbstract read
In one paragraph

Article in Diabetes, 2008. 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
8.3field-weighted citation impact, top 2% 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, 61 citations in OpenAlex.

  1. Article
  2. Article
  3. CD47 and thrombospondin-1 regulation of mitochondria, metabolism, and diabetes.American journal of physiology. Cell physiology · 2021
    Review
  4. Thrombospondin-1 CD47 Signalling: From Mechanisms to Medicine.International journal of molecular sciences · 2021
    Review
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  9. Article
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  12. Review
  13. Article
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  15. Article
  16. A novel cancer therapeutic using thrombospondin 1 in dendritic cells.Molecular therapy : the journal of the American Society of Gene Therapy · 2014
    Article
  17. Article
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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 2 countries.

Johan OlerudDepartment of Medical Cell Biology, Uppsala University, Uppsala, Sweden.
Magnus Johansson
Jack Lawler
Nils Welsh
Per-Ola Carlsson
Uppsala University · SEHarvard University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveInsufficient development of a new intra-islet capillary network after transplantation may be one contributing factor to the failure of islet grafts in clinical transplantation. The present study tested the hypothesis that the angiostatic factor thrombospondin-1 (TSP-1), which is normally present in islets, restricts intra-islet vascular expansion posttransplantation. RESEARCH DESIGN AND

methodsPancreatic islets of TSP-1-deficient (TSP-1(-/-)) mice or wild-type islets transfected with siRNA for TSP-1 were transplanted beneath the renal capsule of syngeneic or immunocompromised recipient mice.

resultsBoth genetically TSP-1(-/-) islets and TSP-1 siRNA-transfected islet cells demonstrated an increased vascular density when compared with control islets 1 month after transplantation. This was also reflected in a markedly increased blood perfusion and oxygenation of the grafts. The functional importance of the improved vascular engraftment was analyzed by comparing glucose-stimulated insulin release from islet cells transfected with either TSP-1 siRNA or scramble siRNA before implantation. These experiments showed that the increased revascularization of grafts composed of TSP-1 siRNA-transfected islet cells correlated to increments in both their first and second phase of glucose-stimulated insulin secretion.

conclusionsOur findings demonstrate that inhibition of TSP-1 in islets intended for transplantation may be a feasible strategy to improve islet graft revascularization and function.

Indexed as

AnimalsGene Expression RegulationGlucoseGraft SurvivalInsulinInsulin SecretionIslets of LangerhansIslets of Langerhans TransplantationMiceMice, Inbred C57BLMice, KnockoutMice, NudeRNA, MessengerRNA, Small InterferingThrombospondin 1TransfectionGlucoseInsulinRNA, MessengerRNA, Small InterferingThrombospondin 1

Identifiers

PMID18420490
PMCPMC2453615
OpenAlexW2158116717

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.