In-situ formed thermosensitive hydrogel amplifies statin-mediated immune checkpoint blockade for coordinated tumor chemo-immunotherapy

Small molecule drugs are the next-generation of immune checkpoint inhibitors (ICIs), but their in vivo therapeutic outcomes remain unsatisfactory for a long time. Herein, we proposed a combinatory regimen that delivered a small molecule ICI and an immunogenic cell death inducer in an in-situ formed...

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Main Authors: Zefan Liu, Yajun Zhang, Jinyu Huang, Yan Wang, Xin Kang
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-05-01
Series:Frontiers in Pharmacology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fphar.2023.1154392/full
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author Zefan Liu
Yajun Zhang
Jinyu Huang
Yan Wang
Xin Kang
author_facet Zefan Liu
Yajun Zhang
Jinyu Huang
Yan Wang
Xin Kang
author_sort Zefan Liu
collection DOAJ
description Small molecule drugs are the next-generation of immune checkpoint inhibitors (ICIs), but their in vivo therapeutic outcomes remain unsatisfactory for a long time. Herein, we proposed a combinatory regimen that delivered a small molecule ICI and an immunogenic cell death inducer in an in-situ formed hydrogel scaffold based on thermosensitive materials (Pluronic F127). This platform increased the tumor retention of administrated small molecules, creating more opportunities for the interaction between drugs and tumor cells. We found that atorvastatin (ATO) effectively downregulated the expression of programmed death ligand 1 (PD-L1) and reversed compensative PD-L1 upregulation after cyclophosphamide (CTX) chemotherapy on CT26 colon tumors. CTX not only killed tumor cells to reduce the tumor burden, but also release damage-associated molecular patterns (DAMPs) to stimulate T cell immunity, therefore amplifying statin-mediated immunotherapy. The platform reported in this study might be promising to overcome the limitation of small molecule ICIs with short retention time and potentiate tumor chemo-immunotherapy.
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spelling doaj.art-f021c05a6f1c407da9e6459a30978da02023-05-09T04:42:38ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122023-05-011410.3389/fphar.2023.11543921154392In-situ formed thermosensitive hydrogel amplifies statin-mediated immune checkpoint blockade for coordinated tumor chemo-immunotherapyZefan LiuYajun ZhangJinyu HuangYan WangXin KangSmall molecule drugs are the next-generation of immune checkpoint inhibitors (ICIs), but their in vivo therapeutic outcomes remain unsatisfactory for a long time. Herein, we proposed a combinatory regimen that delivered a small molecule ICI and an immunogenic cell death inducer in an in-situ formed hydrogel scaffold based on thermosensitive materials (Pluronic F127). This platform increased the tumor retention of administrated small molecules, creating more opportunities for the interaction between drugs and tumor cells. We found that atorvastatin (ATO) effectively downregulated the expression of programmed death ligand 1 (PD-L1) and reversed compensative PD-L1 upregulation after cyclophosphamide (CTX) chemotherapy on CT26 colon tumors. CTX not only killed tumor cells to reduce the tumor burden, but also release damage-associated molecular patterns (DAMPs) to stimulate T cell immunity, therefore amplifying statin-mediated immunotherapy. The platform reported in this study might be promising to overcome the limitation of small molecule ICIs with short retention time and potentiate tumor chemo-immunotherapy.https://www.frontiersin.org/articles/10.3389/fphar.2023.1154392/fullsmall moleculeimmune checkpoint inhibitorimmunogenic cell deaththermosensitive hydrogelchemo-immunotherapy
spellingShingle Zefan Liu
Yajun Zhang
Jinyu Huang
Yan Wang
Xin Kang
In-situ formed thermosensitive hydrogel amplifies statin-mediated immune checkpoint blockade for coordinated tumor chemo-immunotherapy
Frontiers in Pharmacology
small molecule
immune checkpoint inhibitor
immunogenic cell death
thermosensitive hydrogel
chemo-immunotherapy
title In-situ formed thermosensitive hydrogel amplifies statin-mediated immune checkpoint blockade for coordinated tumor chemo-immunotherapy
title_full In-situ formed thermosensitive hydrogel amplifies statin-mediated immune checkpoint blockade for coordinated tumor chemo-immunotherapy
title_fullStr In-situ formed thermosensitive hydrogel amplifies statin-mediated immune checkpoint blockade for coordinated tumor chemo-immunotherapy
title_full_unstemmed In-situ formed thermosensitive hydrogel amplifies statin-mediated immune checkpoint blockade for coordinated tumor chemo-immunotherapy
title_short In-situ formed thermosensitive hydrogel amplifies statin-mediated immune checkpoint blockade for coordinated tumor chemo-immunotherapy
title_sort in situ formed thermosensitive hydrogel amplifies statin mediated immune checkpoint blockade for coordinated tumor chemo immunotherapy
topic small molecule
immune checkpoint inhibitor
immunogenic cell death
thermosensitive hydrogel
chemo-immunotherapy
url https://www.frontiersin.org/articles/10.3389/fphar.2023.1154392/full
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AT yajunzhang insituformedthermosensitivehydrogelamplifiesstatinmediatedimmunecheckpointblockadeforcoordinatedtumorchemoimmunotherapy
AT jinyuhuang insituformedthermosensitivehydrogelamplifiesstatinmediatedimmunecheckpointblockadeforcoordinatedtumorchemoimmunotherapy
AT yanwang insituformedthermosensitivehydrogelamplifiesstatinmediatedimmunecheckpointblockadeforcoordinatedtumorchemoimmunotherapy
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