Evidence map›Paper›PMID 9576743›Full record

ArticleThe Journal of clinical investigation1998

Stable expression of manganese superoxide dismutase (MnSOD) in insulinoma cells prevents IL-1beta- induced cytotoxicity and reduces nitric oxide production.

H E Hohmeier, A Thigpen, V V Tran, R Davis, C B Newgard

Open access · greenAbstract readComparative Study
In one paragraph

Article in The Journal of clinical investigation, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
12.8field-weighted citation impact, top 1% 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

31 citing papers in PubMed, 156 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Inflammatory response in islet transplantation.International journal of endocrinology · 2014
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Oxidative stress and beta-cell dysfunction.Pflugers Archiv : European journal of physiology · 2010
    Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Pancreatic B-cell function is altered by oxidative stress induced by acute hyperglycaemia.Diabetic medicine : a journal of the British Diabetic Association · 2007
    Article
  17. Article
  18. Article
  19. Article
  20. Reactive oxygen species in ovarian physiology.Reproductive medicine and biology · 2005
    Review
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 1 institution in 1 country.

H E HohmeierDepartment of Biochemistry and Department of Internal Medicine, Gifford Laboratories for Diabetes Research, University of Texas Southwestern Medical Center, Dallas, Texas 75235, USA.
A Thigpen
V V Tran
R Davis
C B Newgard
The University of Texas Southwestern Medical Center · US

Funding

ENGINEERED GLUCOSE METABOLISM IN INSULIN-SECRETING CELLSR01DK046492 · NIDDK · UNIVERSITY OF TEXAS SW MED CTR/DALLAS · PI NEWGARD, CHRISTOPHER B · 1993 to 2025
$7.8M
Engineered Glucose Metabolism in Insulin Secreting CellsR37DK046492 · NIDDK · DUKE UNIVERSITY · PI NEWGARD, CHRISTOPHER B · 2003 to 2010
$3.5M
NIDDK NIH HHS DK46492-05
6 · The paper itself

Abstract

The fact that insulin-producing islet beta-cells are susceptible to the cytotoxic effects of inflammatory cytokines represents a potential hinderance to the use of such cells for transplantation therapy of insulin-dependent diabetes mellitus (IDDM). In the current study, we show that IL-1beta induces destruction of INS-1 insulinoma cells, while having no effect on a second insulinoma cell line RIN1046-38 and its engineered derivatives, and that this difference is correlated with a higher level of expression of manganese superoxide dismutase (MnSOD) in the latter cells. Stable overexpression of MnSOD in INS-1 cells provides complete protection against IL-1beta-mediated cytotoxicity, and also results in markedly reduced killing when such cells are exposed to conditioned media from activated human or rat PBMC. Further, overexpression of MnSOD in either RIN- or INS-1-derived lines results in a sharp reduction in IL-1beta-induced nitric oxide (NO) production, a finding that correlates with reduced levels of the inducible form of nitric oxide synthase (iNOS). Treatment of INS-1 cells with L-NMMA, an inhibitor of iNOS, provides the same degree of protection against IL-1beta or supernatants from LPS-activated rat PBMC as MnSOD overexpression, supporting the idea that MnSOD protects INS-1 cells by interfering with the normal IL-1beta-mediated increase in iNOS. Because NO and its derivatives have been implicated as critical mediators of beta-cell destruction in IDDM, we conclude that well regulated insulinoma cell lines engineered for MnSOD overexpression may be an attractive alternative to isolated islets as vehicles for insulin replacement in autoimmune diabetes.

Indexed as

AnimalsCell SurvivalDiabetes Mellitus, Type 1HumansInsulinomaInterleukin-1Islets of LangerhansNitric OxideNitric Oxide SynthaseNitric Oxide Synthase Type IIomega-N-MethylarginineRatsRecombinant ProteinsRNA, MessengerSuperoxide DismutaseTumor Cells, CulturedInterleukin-1Nitric OxideNitric Oxide SynthaseNitric Oxide Synthase Type IINOS2 protein, humanNos2 protein, ratomega-N-MethylarginineRecombinant ProteinsRNA, MessengerSuperoxide Dismutase

Identifiers

PMID9576743
PMCPMC508765
OpenAlexW2037295277

What OpenQuestion holds

Textmetadata
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.