Evidence map›Paper›PMID 28940685›Full record

ArticleCancer science2017

Antifibrotic effects of pentoxifylline improve the efficacy of gemcitabine in human pancreatic tumor xenografts.

Jung Ho Kim, Byung Cheol Shin, Won Sang Park, Jaehwi Lee, Hyo-Jeong Kuh

Open access · goldAbstract read
In one paragraph

Article in Cancer science, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
0.6field-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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Prognostic biomarkers related to tumoral microenvironment in pancreatic ductal adenocarcinoma: a systematic review.Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie
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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

5 authors at 3 institutions in 1 country.

Jung Ho KimDepartment of Biomedicine & Health Science, The Catholic University of Korea, Seoul, Korea.
Byung Cheol ShinBio/Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, Korea.
Won Sang ParkDepartment of Pathology, The Catholic University of Korea, Seoul, Korea.
Jaehwi LeeCollege of Pharmacy, Chung-Ang University, Seoul, Korea.
Hyo-Jeong KuhDepartment of Biomedicine & Health Science, The Catholic University of Korea, Seoul, Korea.ORCID http://orcid.org/0000-0001-8549-0499
Catholic University of Korea · KRChung-Ang University · KRKorea Research Institute of Chemical Technology · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We investigated the combinatorial effects of pentoxifylline (PTX) on the efficacy of gemcitabine (GEM) in a human pancreatic tumor xenograft model. PTX significantly improved the efficacy of GEM, as shown by a 50% reduction in tumor growth rate at 4 weeks of treatment compared with that in animals given GEM alone. The fluorescent drug doxorubicin (DOX) was used to test whether drug delivery was improved by PTX, contributing to the improved efficacy of GEM. PTX given for 2 weeks prior to giving DOX improved drug distribution by 1.8- to 2.2-fold with no changes in vessel density, suggesting that improvement in drug delivery was not related to the vascular mechanism. Instead, collagen I content in tumor stroma was significantly reduced, as was the expression of alpha-smooth muscle actin of cancer-associated fibroblasts and connective tissue growth factor (CTGF) by PTX pretreatment. Overall, our data demonstrated that increased efficacy of GEM by PTX was associated with improved drug delivery to tumor tissue, which may be attributed to decreased expression of CTGF and subsequent reduction in the stromal collagen matrix in the pancreatic ductal adenocarcinoma tumor. These results support the usefulness of PTX in combination with chemotherapy for targeting drug delivery barriers associated with the stromal matrix, which should be further evaluated for clinical development.

Indexed as

AnimalsAntineoplastic Combined Chemotherapy ProtocolsDeoxycytidineDrug SynergismGemcitabineHumansMiceMice, Inbred BALB CMice, NudePancreatic NeoplasmsPentoxifyllinePhosphodiesterase InhibitorsTissue DistributionXenograft Model Antitumor AssaysDeoxycytidineGemcitabinePentoxifyllinePhosphodiesterase InhibitorsConnective tissue growth factordesmoplasiagemcitabinepancreatic ductal adenocarcinomapentoxifylline

Identifiers

PMID28940685
PMCPMC5715266
OpenAlexW2757131803

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.