Evidence map›Paper›PMID 21098698›Full record

ArticleClinical cancer research : an official journal of the American Association for Cancer Research2011

Plectin-1 as a novel biomarker for pancreatic cancer.

Dirk Bausch, Stephanie Thomas, Mari Mino-Kenudson, Castillo Carlos Fernández-del, Todd W Bauer, Mark Williams, Andrew L Warshaw, Sarah P Thayer, Kimberly A Kelly

Open access · bronzeAbstract readEvaluation Study
In one paragraph

Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 111 papers.

0numbers the graph read from it
0cells of the map it votes in
111citing papers in PubMed
5.6field-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

111 citing papers in PubMed, 242 citations in OpenAlex.

  1. AI-guided design of plectin-1-targetedJournal of nanobiotechnology · 2026
    Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Review
  20. Article

51 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Dirk BauschDepartment of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114-2622, USA.
Stephanie Thomas
Mari Mino-Kenudson
Castillo Carlos Fernández-del
Todd W Bauer
Mark Williams
Andrew L Warshaw
Sarah P Thayer
Kimberly A Kelly
Massachusetts General Hospital · USHarvard University · US

Funding

Women's Oncology Program - WONP30CA044579 · NCI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI Thomas P. Loughran · 1987 to 2026
$72.1M
The RAS and P13K Pathways in Pancreatic AdenocarcinomaP01CA117969 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI DEPINHO, RONALD ANTHONY · 2006 to 2025
$41.7M
Tissue and Pathology ResourcesP50CA127003 · NCI · DANA-FARBER CANCER INST · PI SICINSKA, · 2007 to 2023
$33.2M
Development of Molecularly Targeted Imaging Agents for KRAS activity in vivoR01EB010023 · NIBIB · UNIVERSITY OF VIRGINIA · PI EL-BARDEESY, NABEEL, KELLY, KIMBERLY A. · 2010 to 2013
$1.4M
Development of Molecularly Targeted Imaging Agents for Early Detection of PDACR01CA137071 · NCI · UNIVERSITY OF VIRGINIA · PI KELLY, KIMBERLY A. · 2008 to 2012
$1.3M
NCI NIH HHS L30 CA124093NCI NIH HHS P01 CA117969NCI NIH HHS P30 CA044579NCI NIH HHS P50 CA127003NCI NIH HHS R01 CA137071NIBIB NIH HHS R01 EB010023
6 · The paper itself

Abstract

purposeWe are in great need of specific biomarkers to detect pancreatic ductal adenocarcinoma (PDAC) at an early stage, ideally before invasion. Plectin-1 (Plec1) was recently identified as one such biomarker. However, its suitability as a specific biomarker for human pancreatic cancer, and its usability as an imaging target, remain to be assessed. EXPERIMENTAL

designSpecimens of human PDAC, chronic pancreatitis, and normal pancreata were evaluated by immunohistochemistry and Western blot analysis. To validate Plec1 as an imaging target, Plec1-targeting peptides (tPTP) were used as a contrast agent for single photon emission computed tomography in an orthotopic and liver metastasis murine model of PDAC.

resultsPlec1 expression was noted to be positive in all PDACs but negative in benign tissues. Plec1 expression increases during pancreatic carcinogenesis. It was found to be misexpressed in only 0% to 3.85% of early PDAC precursor lesions (PanIN I/II) but in 60% of PanIN III lesions. Plec1 expression was further noted to be retained in all metastatic foci assayed and clearly highlighted these metastatic deposits in lymph nodes, liver, and peritoneum. In vivo imaging using tPTP specifically highlighted the primary and metastatic tumors. Biodistribution studies performed after imaging show that the primary pancreatic tumors and liver metastases retained 1.9- to 2.9-fold of tPTP over normal pancreas and 1.7-fold over normal liver.

conclusionsPlec1 is the first biomarker to identify primary and metastatic PDAC by imaging and may also detect preinvasive PanIN III lesions. Strategies designed to image Plec1 could therefore improve detection and staging.

Indexed as

AnimalsBiomarkers, TumorCarcinoma, Pancreatic DuctalContrast MediaHumansLiver NeoplasmsMiceMice, NudePancreasPancreatic NeoplasmsPancreatitisPlectinTomography, Emission-Computed, Single-PhotonBiomarkers, TumorContrast MediaPLEC protein, humanPlectin

Identifiers

PMID21098698
PMCPMC3044444
OpenAlexW2141075973

What OpenQuestion holds

Textmetadata
LicenceTDM
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.