Evidence map›Paper›PMID 20524145›Full record

ArticleMolecular and cellular biochemistry2010

Cathepsin L increased level upon Ras mutants expression: the role of p38 and p44/42 MAPK signaling pathways.

Lorena Urbanelli, Francesco Trivelli, Luisa Ercolani, Eleonora Sementino, Alessandro Magini, Brunella Tancini, Raffaella Franceschini, Carla Emiliani

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Article in Molecular and cellular biochemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.5field-weighted citation impact, top 35% 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

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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

5 citing papers in PubMed, 15 citations in OpenAlex.

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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

8 authors at 2 institutions in 2 countries.

Lorena UrbanelliDepartment of Experimental Medicine and Biochemical Sciences, University of Perugia, Perugia, Italy.
Francesco Trivelli
Luisa Ercolani
Eleonora Sementino
Alessandro Magini
Brunella Tancini
Raffaella Franceschini
Carla Emiliani
University of Perugia · ITFox Chase Cancer Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The involvement of Ras and three major Ras effectors, Raf, phosphatidylinositol 3-kinase (PI3K) and Ral guanine nucleotide exchange factor in the regulation of lysosomal proteases cathepsin L and B in human fibroblasts was compared. We found that cathepsin L cell content was increased by active Ras overexpression through Raf- and PI3K-mediated signaling pathways, while cathepsin B processing was altered by active Ras overexpression. Cathepsin L increased level following active Ras overexpression correlates with an increase of p38 MAPK activation and content and with an increase of p44/42 MAPK activation, so we investigated the role of these signaling pathways using pharmacological inhibitors. Unexpectedly, the p38 MAPK inhibitor SB203580 produced an increase of cathepsin L content, while the p44/42 MAPK signaling cascade inhibitor U0126 produced a remarkable shift of cathepsin L processing in favor of procathepsin L. In both cases, cathepsin B level and processing were not affected. The analysis of CTSL1 gene transcript demonstrated that cathepsin L protein and transcript correlate both in fibroblasts expressing Ras mutants and in pharmacologically treated cells, thus indicating a transcriptional up-regulation.

Indexed as

MutationSignal TransductionBase SequenceBlotting, WesternButadienesCathepsin LCell LineDNA PrimersHumansImidazolesMitogen-Activated Protein KinasesNitrilesp38 Mitogen-Activated Protein KinasesPolymerase Chain ReactionProtein Kinase InhibitorsPyridinesButadienesCathepsin LDNA PrimersImidazolesMitogen-Activated Protein KinasesNitrilesp38 Mitogen-Activated Protein KinasesProtein Kinase InhibitorsPyridinesras ProteinsSB 203580U 0126

Identifiers

PMID20524145
OpenAlexW1999442339

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Registered trials

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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.