Phenotypic screening platform identifies statins as enhancers of immune cell-induced cancer cell death

Abstract Background High-throughput screening (HTS) of small molecule drug libraries has greatly facilitated the discovery of new cancer drugs. However, most phenotypic screening platforms used in the field of oncology are based solely on cancer cell populations and do not allow for the identificati...

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Main Authors: Tove Selvin, Malin Berglund, Lena Lenhammar, Malin Jarvius, Peter Nygren, Mårten Fryknäs, Rolf Larsson, Claes R Andersson
Format: Article
Language:English
Published: BMC 2023-02-01
Series:BMC Cancer
Subjects:
Online Access:https://doi.org/10.1186/s12885-023-10645-4
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author Tove Selvin
Malin Berglund
Lena Lenhammar
Malin Jarvius
Peter Nygren
Mårten Fryknäs
Rolf Larsson
Claes R Andersson
author_facet Tove Selvin
Malin Berglund
Lena Lenhammar
Malin Jarvius
Peter Nygren
Mårten Fryknäs
Rolf Larsson
Claes R Andersson
author_sort Tove Selvin
collection DOAJ
description Abstract Background High-throughput screening (HTS) of small molecule drug libraries has greatly facilitated the discovery of new cancer drugs. However, most phenotypic screening platforms used in the field of oncology are based solely on cancer cell populations and do not allow for the identification of immunomodulatory agents. Methods We developed a phenotypic screening platform based on a miniaturized co-culture system with human colorectal cancer- and immune cells, providing a model that recapitulates part of the tumor immune microenvironment (TIME) complexity while simultaneously being compatible with a simple image-based readout. Using this platform, we screened 1,280 small molecule drugs, all approved by the Food and Drug Administration (FDA), and identified statins as enhancers of immune cell-induced cancer cell death. Results The lipophilic statin pitavastatin had the most potent anti-cancer effect. Further analysis demonstrated that pitavastatin treatment induced a pro-inflammatory cytokine profile as well as an overall pro-inflammatory gene expression profile in our tumor-immune model. Conclusion Our study provides an in vitro phenotypic screening approach for the identification of immunomodulatory agents and thus addresses a critical gap in the field of immuno-oncology. Our pilot screen identified statins, a drug family gaining increasing interest as repurposing candidates for cancer treatment, as enhancers of immune cell-induced cancer cell death. We speculate that the clinical benefits described for cancer patients receiving statins are not simply caused by a direct effect on the cancer cells but rather are dependent on the combined effect exerted on both cancer and immune cells.
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spelling doaj.art-6a001318eb47461bbdbb33b4e9a1a25b2023-03-22T11:34:35ZengBMCBMC Cancer1471-24072023-02-0123111010.1186/s12885-023-10645-4Phenotypic screening platform identifies statins as enhancers of immune cell-induced cancer cell deathTove Selvin0Malin Berglund1Lena Lenhammar2Malin Jarvius3Peter Nygren4Mårten Fryknäs5Rolf Larsson6Claes R Andersson7Department of Medical Sciences, Division of Cancer Pharmacology and Computational Medicine, Uppsala UniversityDepartment of Medical Sciences, Division of Cancer Pharmacology and Computational Medicine, Uppsala UniversityDepartment of Medical Sciences, Division of Cancer Pharmacology and Computational Medicine, Uppsala UniversityDepartment of Medical Sciences, Division of Cancer Pharmacology and Computational Medicine, Uppsala UniversityDepartment of Immunology, Genetics and Pathology, Uppsala UniversityDepartment of Medical Sciences, Division of Cancer Pharmacology and Computational Medicine, Uppsala UniversityDepartment of Medical Sciences, Division of Cancer Pharmacology and Computational Medicine, Uppsala UniversityDepartment of Medical Sciences, Division of Cancer Pharmacology and Computational Medicine, Uppsala UniversityAbstract Background High-throughput screening (HTS) of small molecule drug libraries has greatly facilitated the discovery of new cancer drugs. However, most phenotypic screening platforms used in the field of oncology are based solely on cancer cell populations and do not allow for the identification of immunomodulatory agents. Methods We developed a phenotypic screening platform based on a miniaturized co-culture system with human colorectal cancer- and immune cells, providing a model that recapitulates part of the tumor immune microenvironment (TIME) complexity while simultaneously being compatible with a simple image-based readout. Using this platform, we screened 1,280 small molecule drugs, all approved by the Food and Drug Administration (FDA), and identified statins as enhancers of immune cell-induced cancer cell death. Results The lipophilic statin pitavastatin had the most potent anti-cancer effect. Further analysis demonstrated that pitavastatin treatment induced a pro-inflammatory cytokine profile as well as an overall pro-inflammatory gene expression profile in our tumor-immune model. Conclusion Our study provides an in vitro phenotypic screening approach for the identification of immunomodulatory agents and thus addresses a critical gap in the field of immuno-oncology. Our pilot screen identified statins, a drug family gaining increasing interest as repurposing candidates for cancer treatment, as enhancers of immune cell-induced cancer cell death. We speculate that the clinical benefits described for cancer patients receiving statins are not simply caused by a direct effect on the cancer cells but rather are dependent on the combined effect exerted on both cancer and immune cells.https://doi.org/10.1186/s12885-023-10645-4Immuno-oncologyDrug screeningRepurposingSmall molecule drugsStatins
spellingShingle Tove Selvin
Malin Berglund
Lena Lenhammar
Malin Jarvius
Peter Nygren
Mårten Fryknäs
Rolf Larsson
Claes R Andersson
Phenotypic screening platform identifies statins as enhancers of immune cell-induced cancer cell death
BMC Cancer
Immuno-oncology
Drug screening
Repurposing
Small molecule drugs
Statins
title Phenotypic screening platform identifies statins as enhancers of immune cell-induced cancer cell death
title_full Phenotypic screening platform identifies statins as enhancers of immune cell-induced cancer cell death
title_fullStr Phenotypic screening platform identifies statins as enhancers of immune cell-induced cancer cell death
title_full_unstemmed Phenotypic screening platform identifies statins as enhancers of immune cell-induced cancer cell death
title_short Phenotypic screening platform identifies statins as enhancers of immune cell-induced cancer cell death
title_sort phenotypic screening platform identifies statins as enhancers of immune cell induced cancer cell death
topic Immuno-oncology
Drug screening
Repurposing
Small molecule drugs
Statins
url https://doi.org/10.1186/s12885-023-10645-4
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