Evidence map›Paper›PMID 31527243›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

αvβ3-integrin regulates PD-L1 expression and is involved in cancer immune evasion.

Andrea Vannini, Valerio Leoni, Catia Barboni, Mara Sanapo, Anna Zaghini, Paolo Malatesta, Gabriella Campadelli-Fiume, Tatiana Gianni

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
4.3field-weighted citation impact, top 4% 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

64 citing papers in PubMed, 81 citations in OpenAlex.

  1. Review
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  4. Integrins as key regulators in tumor perineural invasion: mechanisms and clinical implications.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
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4 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Andrea VanniniDepartment of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy.
Valerio LeoniDepartment of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy.
Catia BarboniDepartment of Veterinary Medical Sciences, University of Bologna, 40064 Bologna, Italy.
Mara SanapoDepartment of Veterinary Medical Sciences, University of Bologna, 40064 Bologna, Italy.
Anna ZaghiniDepartment of Veterinary Medical Sciences, University of Bologna, 40064 Bologna, Italy.
Paolo MalatestaDepartment of Experimental Medicine, University of Genova, 16132 Genova, Italy.
Gabriella Campadelli-FiumeDepartment of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy; gabriella.campadelli@unibo.it.
Tatiana GianniDepartment of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy.
University of Bologna · ITOspedale Policlinico San Martino · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tumors utilize a number of effective strategies, including the programmed death 1/PD ligand 1 (PD-1/PD-L1) axis, to evade immune-mediated control of their growth. PD-L1 expression is mainly induced by IFN receptor signaling or constitutively induced. Integrins are an abundantly expressed class of proteins which play multiple deleterious roles in cancer and exert proangiogenic and prosurvival activities. We asked whether αvβ3-integrin positively regulates PD-L1 expression and the anticancer immune response. We report that αvβ3-integrin regulated constitutive and IFN-induced PD-L1 expression in human and murine cancerous and noncancerous cells. αvβ3-integrin targeted STAT1 through its signaling C tail. The implantation of β3-integrin-depleted tumor cells led to a dramatic decrease in the growth of primary tumors, which exhibited reduced PD-L1 expression and became immunologically hot, with increased IFNγ content and CD8+ cell infiltration. In addition, the implantation of β3-integrin-depleted tumors elicited an abscopal immunotherapeutic effect measured as protection from the challenge tumor and durable splenocyte and serum reactivity to B16 cell antigens. These modifications to the immunosuppressive microenvironment primed cells for checkpoint (CP) blockade. When combined with anti-PD-1, β3-integrin depletion led to durable therapy and elicited an abscopal immunotherapeutic effect. We conclude that in addition to its previously known roles, αvβ3-integrin serves as a critical component of the cancer immune evasion strategy and can be an effective immunotherapy target.

Indexed as

cancer immunotherapycombination therapyimmune evasionPD-L1 expressionαvβ3-integrin

Identifiers

PMID31527243
PMCPMC6778255
OpenAlexW2974461674

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.