Evidence map›Paper›PMID 34934001›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Lipidome profiling with Raman microspectroscopy identifies macrophage response to surface topographies of implant materials.

Nora Feuerer, Julia Marzi, Eva M Brauchle, Daniel A Carvajal Berrio, Florian Billing, Martin Weiss, Meike Jakobi, Nicole Schneiderhan-Marra, Christopher Shipp, Katja Schenke-Layland

Open access · hybridAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
7.7field-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

25 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
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  5. Islet Tissue Macrophages in Immunity Homeostasis and Type 1 Diabetes.Clinical reviews in allergy & immunology · 2025
    Review
  6. Article
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  8. Article
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  11. Article
  12. Review
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  14. Review
  15. Article
  16. Article
  17. Article
  18. Analytical Techniques for Single-Cell Biochemical Assays of Lipids.Annual review of biomedical engineering · 2023
    Review
  19. Article
  20. Article
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

10 authors at 3 institutions in 2 countries.

Nora FeuererNMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany.ORCID 0000-0002-2893-429X
Julia MarziNMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany.ORCID 0000-0003-1545-5430
Eva M BrauchleNMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany.
Daniel A Carvajal BerrioInstitute of Biomedical Engineering, Department for Medical Technologies and Regenerative Medicine, Eberhard Karls University Tübingen, 72076 Tübingen, Germany.
Florian BillingNMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany.ORCID 0000-0002-3874-9012
Martin WeissNMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany.
Meike JakobiNMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany.
Nicole Schneiderhan-MarraNMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany.ORCID 0000-0001-6785-181X
Christopher ShippNMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany.
Katja Schenke-LaylandNMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany; katja.schenke-layland@uni-tuebingen.de.ORCID 0000-0001-8066-5157
Natural and Medical Sciences Institute · DEUniversity of California, Los Angeles · USUniversity of Tübingen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biomaterial characteristics such as surface topographies have been shown to modulate macrophage phenotypes. The standard methodologies to measure macrophage response to biomaterials are marker-based and invasive. Raman microspectroscopy (RM) is a marker-independent, noninvasive technology that allows the analysis of living cells without the need for staining or processing. In the present study, we analyzed human monocyte-derived macrophages (MDMs) using RM, revealing that macrophage activation by lipopolysaccharides (LPS), interferons (IFN), or cytokines can be identified by lipid composition, which significantly differs in M0 (resting), M1 (IFN-γ/LPS), M2a (IL-4/IL-13), and M2c (IL-10) MDMs. To identify the impact of a biomaterial on MDM phenotype and polarization, we cultured macrophages on titanium disks with varying surface topographies and analyzed the adherent MDMs with RM. We detected surface topography-induced changes in MDM biochemistry and lipid composition that were not shown by less sensitive standard methods such as cytokine expression or surface antigen analysis. Our data suggest that RM may enable a more precise classification of macrophage activation and biomaterial-macrophage interaction.

Indexed as

MacrophagesBiocompatible MaterialsCytokinesFemaleHumansImmunity, InnateLipidomicsLipopolysaccharidesMacrophage ActivationMaleSpectrum Analysis, RamanBiocompatible MaterialsCytokinesLipopolysaccharidesbiomaterialsinnate immunitymacrophage polarizationRaman imagingRaman spectroscopy

Identifiers

PMID34934001
PMCPMC8719892
OpenAlexW4200412374

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.