Evidence map›Paper›PMID 11320410›Full record

ArticleGene therapy2001

Gene transfer of antisense hypoxia inducible factor-1 alpha enhances the therapeutic efficacy of cancer immunotherapy.

X Sun, J R Kanwar, E Leung, K Lehnert, D Wang, G W Krissansen

Abstract read
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In one paragraph

Article in Gene therapy, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
6.1field-weighted citation impact, top 3% 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

44 citing papers in PubMed, 142 citations in OpenAlex.

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  16. Microvascular bioengineering: a focus on pericytes.Journal of biological engineering · 2019
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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

6 authors at 1 institution in 1 country.

X SunDivision of Molecular Medicine, Faculty of Medicine and Health Science, University of Auckland, Auckland, New Zealand.
J R Kanwar
E Leung
K Lehnert
D Wang
G W Krissansen
University of Auckland · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Solid tumors meet their demands for nascent blood vessels and increased glycolysis, to combat hypoxia, by activating multiple genes involved in angiogenesis and glucose metabolism. Hypoxia inducible factor-1 (HIF-1) is a constitutively expressed basic helix-loop-helix transcription factor, formed by the assembly of HIF-1alpha and HIF-1beta (Arnt), that is stablized in response to hypoxia, and rapidly degraded under normoxic conditions. It activates the transcription of genes important for maintaining oxygen homeostasis. Here, we demonstrate that engineered down-regulation of HIF-1alpha by intratumoral gene transfer of an antisense HIF-1alpha plasmid leads to the down-regulation of VEGF, and decreased tumor microvessel density. Antisense HIF-1alpha monotherapy resulted in the complete and permanent rejection of small (0.1 cm in diameter) EL-4 tumors, which is unusual for an anti-angiogenic agent where transient suppression of tumor growth is the norm. It induced NK cell-dependent rejection of tumors, but failed to stimulate systemic T cell-mediated anti-tumor immunity, and synergized with B7-1-mediated immunotherapy to cause the NK cell and CD8 T cell-dependent rejection of larger EL-4 tumors (0.4 cm in diameter) that were refractory to monotherapies. Mice cured of their tumors by combination therapy resisted a rechallenge with parental tumor cells, indicating systemic antitumor immunity had been achieved. In summary, whilst intensive investigations are in progress to target the many HIF-1 effectors, the results herein indicate that blocking hypoxia-inducible pathways and enhancing NK-mediated antitumor immunity by targeting HIF-1 itself may be advantageous, especially when combined with cancer immunotherapy.

Indexed as

AnimalsAntisense Elements (Genetics)B7-1 AntigenCombined Modality TherapyDNA-Binding ProteinsDown-RegulationGenetic TherapyGene Transfer TechniquesHypoxia-Inducible Factor 1Hypoxia-Inducible Factor 1, alpha SubunitKiller Cells, NaturalLymphoma, T-CellMaleMiceMice, Inbred C57BLNeovascularization, PathologicAntisense Elements (Genetics)B7-1 AntigenDNA-Binding ProteinsHif1a protein, mouseHypoxia-Inducible Factor 1Hypoxia-Inducible Factor 1, alpha SubunitNuclear ProteinsTranscription Factors

Identifiers

PMID11320410
OpenAlexW2323040971

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.