Evidence map›Paper›PMID 19294766›Full record

ArticleWorld journal of gastroenterology2009

Ex-vivo evaluation of gene therapy vectors in human pancreatic (cancer) tissue slices.

Michael-A van Geer, Koert F D Kuhlmann, Conny T Bakker, Fibo J W ten Kate, Ronald P J Oude Elferink, Piter J Bosma

Open access · hybridAbstract read
In one paragraph

Article in World journal of gastroenterology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 30% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Ex vivo functional whole organ in biomedical research: a review.Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs · 2025
    Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Use of Precision-Cut Lung Slices as anMolecular therapy. Methods & clinical development · 2018
    Article
  11. Review
  12. Review
  13. Ex Vivo Testing of Patient-Derived Xenografts Mirrors the Clinical Outcome of Patients with Pancreatic Ductal Adenocarcinoma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2016
    Article
  14. Article
  15. Article
  16. Sensitization of pancreatic cancer to chemoradiation by the Chk1 inhibitor MK8776.Clinical cancer research : an official journal of the American Association for Cancer Research · 2013
    Article
  17. Article
  18. Article
  19. Frontiers in Suicide Gene Therapy of Cancer.Journal of genetic syndromes & gene therapy · 2012
    Article
  20. Article
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

6 authors at 2 institutions in 2 countries.

Michael-A van GeerLiver Center, Academic Medical Center of University of Amsterdam, Meibergdreef 69/71, 1105 BK Amsterdam, The Netherlands.
Koert F D Kuhlmann
Conny T Bakker
Fibo J W ten Kate
Ronald P J Oude Elferink
Piter J Bosma
Academic Medical Center · NLUniversity of Pittsburgh Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo culture human pancreatic tissue obtained from small resection specimens as a pre-clinical model for examining virus-host interactions.

methodsHuman pancreatic tissue samples (malignant and normal) were obtained from surgical specimens and processed immediately to tissue slices. Tissue slices were cultured ex vivo for 1-6 d in an incubator using 95% O(2). Slices were subsequently analyzed for viability and morphology. In addition the slices were incubated with different viral vectors expressing the reporter genes GFP or DsRed. Expression of these reporter genes was measured at 72 h after infection.

resultsWith the Krumdieck tissue slicer, uniform slices could be generated from pancreatic tissue but only upon embedding the tissue in 3% low melting agarose. Immunohistological examination showed the presence of all pancreatic cell types. Pancreatic normal and cancer tissue slices could be cultured for up to 6 d, while retaining viability and a moderate to good morphology. Reporter gene expression indicated that the slices could be infected and transduced efficiently by adenoviral vectors and by adeno associated viral vectors, whereas transduction with lentiviral vectors was limited. For the adenoviral vector, the transduction seemed limited to the peripheral layers of the explants.

conclusionThe presented system allows reproducible processing of minimal amounts of pancreatic tissue into slices uniform in size, suitable for pre-clinical evaluation of gene therapy vectors.

Indexed as

AdenoviridaeAmylasesAnimalsCell DivisionDisease Models, AnimalGene ExpressionGenes, ReporterGenetic TherapyGenetic VectorsHumansLentivirusMiceMice, NudeNeoplasm TransplantationPancreatic NeoplasmsPlasmidsAmylases

Identifiers

PMID19294766
PMCPMC2658838
OpenAlexW2097583775

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.