Prior anti-CAFs break down the CAFs barrier and improve accumulation of docetaxel micelles in tumor

Ning Pang, Ji Li, Aning Sun, Zhenzhen Yang, Shixuan Cheng, Xian-Rong Qi Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China Background: Abnormal expression of stroma...

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Autores principales: Pang N, Li J, Sun A, Yang Z, Cheng S, Qi XR
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Publicado: Dove Medical Press 2018
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spelling oai:doaj.org-article:9daecfaf20a445759810fbe3dd20cf362021-12-02T00:12:50ZPrior anti-CAFs break down the CAFs barrier and improve accumulation of docetaxel micelles in tumor1178-2013https://doaj.org/article/9daecfaf20a445759810fbe3dd20cf362018-10-01T00:00:00Zhttps://www.dovepress.com/prior-anti-cafs-break-down-the-cafs-barrier-and-improve-accumulation-o-peer-reviewed-article-IJNhttps://doaj.org/toc/1178-2013Ning Pang, Ji Li, Aning Sun, Zhenzhen Yang, Shixuan Cheng, Xian-Rong Qi Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China Background: Abnormal expression of stromal cells and extracellular matrix in tumor stroma creates a tight barrier, leading to insufficient extravasation and penetration of therapeutic agents. Cancer-associated fibroblasts (CAFs) take on pivotal roles encouraging tumor progression.Method: To surmount the refractoriness of stroma, we constructed a multi-targeting combined scenario of anti-CAFs agent tranilast and antitumor agent docetaxel micelles (DTX-Ms). Tranilast cut down crosstalk between tumor cells and stromal cells, ameliorated the tumor microenvironment, and enhanced the antiproliferation efficacy of DTX-Ms on cancer cells.Results: Diverse experiments demonstrated that tranilast enhanced DTX-Ms’ antitumor effect in a two-stage pattern by CAFs ablation, tumor cell migration blocking, and metastasis inhibition. Along with activated CAFs decreasing in vivo, the two-stage therapy succeeded in reducing interstitial fluid pressure, normalizing microvessels, improving micelles penetration and retention, and inhibiting tumor growth and metastasis. Interestingly, tranilast alone failed to inhibit tumor growth in vivo, and it could only be used as an adjuvant medicine together with an antitumor agent.Conclusion: Our proposed two-stage therapy offers a promising strategy to enhance antitumor effects by breaking down CAFs barrier and increasing micellar delivery efficiency. Keywords: two-stage therapy, tumor microenvironment normalization, cancer-associated fibroblasts, tranilast, stromal ablationPang NLi JSun AYang ZCheng SQi XRDove Medical Pressarticletwo-stage therapytumor microenvironmentcancer-associated fibroblasts (CAF)tranilastdocetaxel micellesMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol Volume 13, Pp 5971-5990 (2018)
institution DOAJ
collection DOAJ
language EN
topic two-stage therapy
tumor microenvironment
cancer-associated fibroblasts (CAF)
tranilast
docetaxel micelles
Medicine (General)
R5-920
spellingShingle two-stage therapy
tumor microenvironment
cancer-associated fibroblasts (CAF)
tranilast
docetaxel micelles
Medicine (General)
R5-920
Pang N
Li J
Sun A
Yang Z
Cheng S
Qi XR
Prior anti-CAFs break down the CAFs barrier and improve accumulation of docetaxel micelles in tumor
description Ning Pang, Ji Li, Aning Sun, Zhenzhen Yang, Shixuan Cheng, Xian-Rong Qi Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China Background: Abnormal expression of stromal cells and extracellular matrix in tumor stroma creates a tight barrier, leading to insufficient extravasation and penetration of therapeutic agents. Cancer-associated fibroblasts (CAFs) take on pivotal roles encouraging tumor progression.Method: To surmount the refractoriness of stroma, we constructed a multi-targeting combined scenario of anti-CAFs agent tranilast and antitumor agent docetaxel micelles (DTX-Ms). Tranilast cut down crosstalk between tumor cells and stromal cells, ameliorated the tumor microenvironment, and enhanced the antiproliferation efficacy of DTX-Ms on cancer cells.Results: Diverse experiments demonstrated that tranilast enhanced DTX-Ms’ antitumor effect in a two-stage pattern by CAFs ablation, tumor cell migration blocking, and metastasis inhibition. Along with activated CAFs decreasing in vivo, the two-stage therapy succeeded in reducing interstitial fluid pressure, normalizing microvessels, improving micelles penetration and retention, and inhibiting tumor growth and metastasis. Interestingly, tranilast alone failed to inhibit tumor growth in vivo, and it could only be used as an adjuvant medicine together with an antitumor agent.Conclusion: Our proposed two-stage therapy offers a promising strategy to enhance antitumor effects by breaking down CAFs barrier and increasing micellar delivery efficiency. Keywords: two-stage therapy, tumor microenvironment normalization, cancer-associated fibroblasts, tranilast, stromal ablation
format article
author Pang N
Li J
Sun A
Yang Z
Cheng S
Qi XR
author_facet Pang N
Li J
Sun A
Yang Z
Cheng S
Qi XR
author_sort Pang N
title Prior anti-CAFs break down the CAFs barrier and improve accumulation of docetaxel micelles in tumor
title_short Prior anti-CAFs break down the CAFs barrier and improve accumulation of docetaxel micelles in tumor
title_full Prior anti-CAFs break down the CAFs barrier and improve accumulation of docetaxel micelles in tumor
title_fullStr Prior anti-CAFs break down the CAFs barrier and improve accumulation of docetaxel micelles in tumor
title_full_unstemmed Prior anti-CAFs break down the CAFs barrier and improve accumulation of docetaxel micelles in tumor
title_sort prior anti-cafs break down the cafs barrier and improve accumulation of docetaxel micelles in tumor
publisher Dove Medical Press
publishDate 2018
url https://doaj.org/article/9daecfaf20a445759810fbe3dd20cf36
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