Evidence map›Paper›PMID 22004109›Full record

ArticleJournal of cellular and molecular medicine2012

Heat shock protein 27 as a prognostic and predictive biomarker in pancreatic ductal adenocarcinoma.

Claus Schäfer, Hendrik Seeliger, Dominik C Bader, Gerald Assmann, Denise Buchner, Yang Guo, Andreas Ziesch, Andreas Palagyi, Stephanie Ochs, Rüdiger P Laubender and 6 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 18% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Systematic review of peri-operative prognostic biomarkers in pancreatic ductal adenocarcinoma.HPB : the official journal of the International Hepato Pancreato Biliary Association · 2016
    Pooled it
  2. Review
  3. Article
  4. Deciphering of SOX9 Functions in Pancreatic Cancer Cells.International journal of molecular sciences · 2025
    Article
  5. Review
  6. Understanding the Conundrum of Pancreatic Cancer in the Omics Sciences Era.International journal of molecular sciences · 2024
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Magnetic nanoparticle hyperthermia for treating locally advanced unresectable and borderline resectable pancreatic cancers: the role of tumor size and eddy-current heating.International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group · 2020
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Downregulation of Human Endogenous Retrovirus Type K (HERV-K) ViralClinical cancer research : an official journal of the American Association for Cancer Research · 2017
    Article
  18. Review
  19. Article
  20. Review
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

16 authors at 1 institution in 1 country.

Claus SchäferDepartment of Medicine II, Klinikum Neumarkt, Neumarkt id OPf, Germany.
Hendrik Seeliger
Dominik C Bader
Gerald Assmann
Denise Buchner
Yang Guo
Andreas Ziesch
Andreas Palagyi
Stephanie Ochs
Rüdiger P Laubender
Andreas Jung
Enrico N De Toni
Thomas Kirchner
Burkhard Göke
Christiane Bruns
Eike Gallmeier
Ludwig-Maximilians-Universität München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A role of heat shock protein 27 (HSP27) as a potential biomarker has been reported in various tumour entities, but comprehensive studies in pancreatic cancer are lacking. Applying tissue microarray (TMA) analysis, we correlated HSP27 protein expression status with clinicopathologic parameters in pancreatic ductal adenocarcinoma specimens from 86 patients. Complementary, we established HSP27 overexpression and RNA-interference models to assess the impact of HSP27 on chemo- and radiosensitivity directly in pancreatic cancer cells. In the TMA study, HSP27 expression was found in 49% of tumour samples. Applying univariate analyses, a significant correlation was found between HSP27 expression and survival. In the multivariate Cox-regression model, HSP27 expression emerged as an independent prognostic factor. HSP27 expression also correlated inversely with nuclear p53 accumulation, indicating either protein interactions between HSP27 and p53 or TP53 mutation-dependent HSP27-regulation in pancreatic cancer. In the sensitivity studies, HSP27 overexpression rendered HSP27 low-expressing PL5 pancreatic cancer cells more susceptible towards treatment with gemcitabine. Vice versa, HSP27 protein depletion in HSP27 high-expressing AsPC-1 cells caused increased gemcitabine resistance. Importantly, HSP27 expression was inducible in pancreatic cancer cell lines as well as primary cells. Taken together, our study suggests a role for HSP27 as a prognostic and predictive marker in pancreatic cancer. Assessment of HSP27 expression could thus facilitate the identification of specific patient subpopulations that might benefit from individualized treatment options. Additional studies need to clarify whether modulation of HSP27 expression could represent an attractive concept to support the incorporation of hyperthermia in clinical treatment protocols for pancreatic cancer.

Indexed as

AdenocarcinomaAdultAgedAged, 80 and overBiomarkers, TumorCarcinoma, Pancreatic DuctalCell Line, TumorDeoxycytidineDrug Screening Assays, AntitumorFemaleGemcitabineHeat-Shock ProteinsHeat-Shock ResponseHSP27 Heat-Shock ProteinsHumansImmunohistochemistryBiomarkers, TumorDeoxycytidineGemcitabineHeat-Shock ProteinsHSP27 Heat-Shock ProteinsHSPB1 protein, humanMolecular Chaperones

Identifiers

PMID22004109
PMCPMC3822691
OpenAlexW1991332193

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.