Evidence map›Paper›PMID 34359549›Full record

ArticleCancers2021

Collagen Organization Does Not Influence T-Cell Distribution in Stroma of Human Pancreatic Cancer.

Eva-Maria Kamionka, Baifeng Qian, Wolfgang Gross, Frank Bergmann, Thilo Hackert, Carlo A Beretta, Nicolas Dross, Eduard Ryschich

Open access · goldAbstract read
In one paragraph

Article in Cancers, 2021. 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
0.4field-weighted citation impact, top 34% 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

5 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. 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

8 authors at 1 institution in 1 country.

Eva-Maria KamionkaDepartment of General, Visceral, and Transplantation Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 365/420, 69120 Heidelberg, Germany.
Baifeng QianDepartment of General, Visceral, and Transplantation Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 365/420, 69120 Heidelberg, Germany.
Wolfgang GrossDepartment of General, Visceral, and Transplantation Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 365/420, 69120 Heidelberg, Germany.ORCID 0000-0002-5431-7594
Frank BergmannDepartment of Pathology, Heidelberg University Hospital, Im Neuenheimer Feld 224, 69120 Heidelberg, Germany.
Thilo HackertDepartment of General, Visceral, and Transplantation Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 365/420, 69120 Heidelberg, Germany.ORCID 0000-0002-7012-1196
Carlo A BerettaCellNetworks Math-Clinic, University of Heidelberg, Bioquant BQ001, Im Neuenheimer Feld 267, 69120 Heidelberg, Germany.
Nicolas DrossNikon Imaging Center, University of Heidelberg, 69120 Heidelberg, Germany.
Eduard RyschichDepartment of General, Visceral, and Transplantation Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 365/420, 69120 Heidelberg, Germany.
Heidelberg University · DE

Funding

Deutsche Forschungsgemeinschaft RY-20/9Heidelberger Stiftung Chirurgie n. a.
6 · The paper itself

Abstract

The dominant intrastromal T-cell infiltration in pancreatic cancer is mainly caused by the contact guidance through the excessive desmoplastic reaction and could represent one of the obstacles to an effective immune response in this tumor type. This study analyzed the collagen organization in normal and malignant pancreatic tissues as well as its influence on T-cell distribution in pancreatic cancer. Human pancreatic tissue was analyzed using immunofluorescence staining and multiphoton and SHG microscopy supported by multistep image processing. The influence of collagen alignment on activated T-cells was studied using 3D matrices and time-lapse microscopy. It was found that the stroma of malignant and normal pancreatic tissues was characterized by complex individual organization. T-cells were heterogeneously distributed in pancreatic cancer and there was no relationship between T-cell distribution and collagen organization. There was a difference in the angular orientation of collagen alignment in the peritumoral and tumor-cell-distant stroma regions in the pancreatic ductal adenocarcinoma tissue, but there was no correlation in the T-cell densities between these regions. The grade of collagen alignment did not influence the directionality of T-cell migration in the 3D collagen matrix. It can be concluded that differences in collagen organization do not change the spatial orientation of T-cell migration or influence stromal T-cell distribution in human pancreatic cancer. The results of the present study do not support the rationale of remodeling of stroma collagen organization for improvement of T-cell-tumor cell contact in pancreatic ductal adenocarcinoma.

Indexed as

chemokinescollagen organizationhuman pancreatic cancerT-cell infiltrationtumor stroma

Identifiers

PMID34359549
PMCPMC8344977
OpenAlexW3184888484

What OpenQuestion holds

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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.