Evidence map›Paper›PMID 17912429›Full record

ArticleInternational journal of oncology2007

RNAi-mediated abrogation of cathepsin B and MMP-9 gene expression in a malignant meningioma cell line leads to decreased tumor growth, invasion and angiogenesis.

Padmaja Tummalapalli, Daniel Spomar, Christopher S Gondi, William C Olivero, Meena Gujrati, Dzung H Dinh, Jasti S Rao

Open access · greenAbstract read
In one paragraph

Article in International journal of oncology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
1.4field-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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Review
  6. Review
  7. Molecular neuropathology of brain-invasive meningiomas.Brain pathology (Zurich, Switzerland) · 2022
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Expression and Therapeutic Potential of SOX9 in Chordoma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2017
    Article
  19. Role of Aquaporin 1 Signalling in Cancer Development and Progression.International journal of molecular sciences · 2017
    Review
  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

7 authors at 1 institution in 1 country.

Padmaja TummalapalliDepartment of Cancer Biology and Pharmacology, University of Illinois College of Medicine at Peoria, One Illini Drive, Peoria, IL 61605, USA.
Daniel Spomar
Christopher S Gondi
William C Olivero
Meena Gujrati
Dzung H Dinh
Jasti S Rao
Illinois College · US

Funding

Cath B and uPAR si RNA constructs regressed glioma growthR01CA116708 · NCI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI O'BRYAN, JOHN P · 2005 to 2014
$2.9M
Inhibition of glioma tumor growth by antisense MMP-9R01NS047699 · NINDS · UNIVERSITY OF ILLINOIS AT CHICAGO · PI RAO, JASTI S. · 2003 to 2011
$2.5M
Role of uPA and uPAR in Human Glioma InvasivenessR01CA075557 · NCI · UNIVERSITY OF TEXAS MD ANDERSON CAN CTR · PI RAO, JASTI S. · 1998 to 2009
$2.3M
Growth inhibition of brain tumors by cord blood stem cellsR01NS057529 · NINDS · UNIVERSITY OF ILLINOIS AT CHICAGO · PI RAO, JASTI S. · 2006 to 2010
$1.8M
Role of TFPI-2 in human gliomas invasivenessR01CA095058 · NCI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI RAO, JASTI S. · 2003 to 2007
$1.5M
Suppression of glioma invasion by a bicistronic constuctR01CA092393 · NCI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI RAO, JASTI S. · 2003 to 2007
$1.4M
NCI NIH HHS CA 116708NCI NIH HHS CA 75557NCI NIH HHS CA 92393NCI NIH HHS CA 95088NCI NIH HHS R01 CA075557NCI NIH HHS R01 CA092393NCI NIH HHS R01 CA095058NCI NIH HHS R01 CA116708NINDS NIH HHS NS 057529NINDS NIH HHS NS 47699NINDS NIH HHS R01 NS047699NINDS NIH HHS R01 NS057529
6 · The paper itself

Abstract

Malignant meningiomas are highly aggressive and frequently recur after surgical resection of the tumor. Earlier studies have reported that the cysteine protease cathepsin B and the matrix metalloproteinase MMP-9 play important roles in tumor progression. In the present study, we made an attempt to evaluate the roles of these proteases in the malignant meningioma tumor microenvironment and determined the effectiveness of using single or bicistronic siRNA constructs for cathepsin B and MMP-9, in both in vitro and in vivo models. Transfection of a plasmid vector expressing double-stranded RNA for cathepsin B and MMP-9 significantly inhibited mRNA and protein levels of cathepsin B and MMP-9. The migration and invasion of meningioma cells were decreased after treatment with single or bicistronic siRNA constructs for cathepsin B and MMP-9 compared to controls and vector controls. Inhibition of angiogenesis was observed when the cells were transfected with single or bicistronic constructs for cathepsin B and MMP-9, when compared to controls or empty vector controls. Our study revealed that abrogation of cathepsin B and MMP-9 expression decreased the activation of major proteins involved in MAP kinase and PI3 kinase pathways indicating that targeting these proteases may hinder intracellular signaling and thus decrease cell survival and proliferation in malignant meningiomas. In addition to the in vitro evidence, we observed a significant regression of pre-established orthotopic tumors after treatment with RNAi plasmid vectors targeting cathepsin B and MMP-9. Furthermore, these observations demonstrate that the simultaneous RNAi-mediated targeting of cathepsin B and MMP-9 has potential application for the treatment of human meningiomas.

Indexed as

RNA InterferenceAnimalsCathepsin BCell Line, TumorExtracellular Signal-Regulated MAP KinasesHumansMAP Kinase Signaling SystemMatrix Metalloproteinase 9Meningeal NeoplasmsMeningiomaMiceNeoplasm InvasivenessNeovascularization, PathologicCathepsin BExtracellular Signal-Regulated MAP KinasesMatrix Metalloproteinase 9

Identifiers

PMID17912429
PMCPMC2031211
OpenAlexW1565366961

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.