Evidence map›Paper›PMID 29995595›Full record

ArticleMolecular biology of the cell2018

Interstitial flow promotes macrophage polarization toward an M2 phenotype.

Ran Li, Jean Carlos Serrano, Hao Xing, Tara A Lee, Hesham Azizgolshani, Muhammad Zaman, Roger D Kamm

Abstract read
In one paragraph

Article in Molecular biology of the cell, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed, 2 pooled it
4.2field-weighted citation impact, top 5% 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

87 citing papers in PubMed, 2 syntheses or guidelines pooled it, 122 citations in OpenAlex.

  1. Pooled it
  2. Modeling Immunity In Vitro: Slices, Chips, and Engineered Tissues.Annual review of biomedical engineering · 2021
    Pooled it
  3. Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. CAR-macrophages: a new chapter in cancer immunotherapy.Acta biochimica et biophysica Sinica · 2026
    Article
  10. Article
  11. Review
  12. Article
  13. Microphysiological systems for metastasis research: a stepwise approach.Cellular oncology (Dordrecht, Netherlands) · 2025
    Review
  14. Review
  15. Review
  16. Article
  17. Review
  18. Macrophage Polarization Profiling in Dynamic Culture System.Cellular and molecular bioengineering · 2025
    Article
  19. Clustered macrophages cooperate to eliminate tumors via coordinated intrudopodia.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  20. Article

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

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

7 authors at 2 institutions in 1 country.

Ran LiDepartment of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139.
Jean Carlos SerranoDepartment of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139.
Hao XingDepartment of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139.
Tara A LeeDepartment of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139.
Hesham AzizgolshaniDepartment of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139.
Muhammad ZamanDepartment of Biomedical Engineering, Boston University, Boston, MA 02215.
Roger D KammDepartment of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139.
Massachusetts Institute of Technology · USBoston University · US

Funding

Development of Physiologic Tissue Models to Assess Tumor Explant Response to Immune Checkpoint BlockadeU01CA214381 · NCI · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI BARBIE, DAVID A, KAMM, ROGER D · 2017 to 2021
$3.5M
NCI NIH HHS U01 CA214381
6 · The paper itself

Abstract

Tumor tissues are characterized by an elevated interstitial fluid flow from the tumor to the surrounding stroma. Macrophages in the tumor microenvironment are key contributors to tumor progression. While it is well established that chemical stimuli within the tumor tissues can alter macrophage behaviors, the effects of mechanical stimuli, especially the flow of interstitial fluid in the tumor microenvironment, on macrophage phenotypes have not been explored. Here, we used three-dimensional biomimetic models to reveal that macrophages can sense and respond to pathophysiological levels of interstitial fluid flow reported in tumors (∼3 µm/s). Specifically, interstitial flow (IF) polarizes macrophages toward an M2-like phenotype via integrin/Src-mediated mechanotransduction pathways involving STAT3/6. Consistent with this flow-induced M2 polarization, macrophages treated with IF migrate faster and have an enhanced ability to promote cancer cell migration. Moreover, IF directs macrophages to migrate against the flow. Since IF emanates from the tumor to the surrounding stromal tissues, our results suggest that IF could not only induce M2 polarization of macrophages but also recruit these M2 macrophages toward the tumor masses, contributing to cancer cell invasion and tumor progression. Collectively, our study reveals that IF could be a critical regulator of tumor immune environment.

Indexed as

Cell PolarityRheologyAnimalsCell MovementExtracellular FluidExtracellular MatrixIntegrin beta1MacrophagesMice, Inbred C57BLModels, BiologicalPhenotypesrc-Family KinasesSTAT Transcription FactorsTumor MicroenvironmentIntegrin beta1src-Family KinasesSTAT Transcription Factors

Identifiers

PMID29995595
PMCPMC6232969
OpenAlexW2824702048

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.