ICAM-1 Targeted Drug Combination Nanoparticles Enhanced Gemcitabine-Paclitaxel Exposure and Breast Cancer Suppression in Mouse Models

Despite the availability of molecularly targeted treatments such as antibodies and small molecules for human epidermal growth factor receptor 2 (HER2), hormone receptor (HR), and programmed death-ligand 1 (PD-L1), limited treatment options are available for advanced metastatic breast cancer (MBC), w...

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Main Authors: Linxi Zhu, Qingxin Mu, Jesse Yu, James I. Griffin, Xiaolin Xu, Rodney J. Y. Ho
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Pharmaceutics
Subjects:
Online Access:https://www.mdpi.com/1999-4923/14/1/89
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author Linxi Zhu
Qingxin Mu
Jesse Yu
James I. Griffin
Xiaolin Xu
Rodney J. Y. Ho
author_facet Linxi Zhu
Qingxin Mu
Jesse Yu
James I. Griffin
Xiaolin Xu
Rodney J. Y. Ho
author_sort Linxi Zhu
collection DOAJ
description Despite the availability of molecularly targeted treatments such as antibodies and small molecules for human epidermal growth factor receptor 2 (HER2), hormone receptor (HR), and programmed death-ligand 1 (PD-L1), limited treatment options are available for advanced metastatic breast cancer (MBC), which constitutes ~90% mortality. Many of these monotherapies often lead to drug resistance. Novel MBC-targeted drug-combination therapeutic approaches that may reduce resistance are urgently needed. We investigated intercellular adhesion molecule-1 (ICAM-1), which is abundant in MBC, as a potential target to co-localize two current drug combinations, gemcitabine (G) and paclitaxel (T), assembled in a novel drug-combination nanoparticle (GT DcNP) form. With an ICAM-1-binding peptide (referred to as LFA1-P) coated on GT DcNPs, we evaluated the role of the LFA1-P density in breast cancer cell localization in vitro and in vivo. We found that 1–2% LFA1-P peptide incorporated on GT DcNPs provided optimal cancer cell binding in vitro with ~4× enhancement compared to non-peptide GT DcNPs. The in vivo probing of GT DcNPs labeled with a near-infrared marker, indocyanine green, in mice by bio-imaging and G and T analyses indicated LFA1-P enhanced drug and GT DcNP localization in breast cancer cells. The target/healthy tissue (lung/gastrointestinal (GI)) ratio of particles increased by ~60× compared to the non-ligand control. Collectively, these data indicated that LFA1 on GT DcNPs may provide ICAM-1-targeted G and T drug combination delivery to advancing MBC cells found in lung tissues. As ICAM-1 is generally expressed even in breast cancers that are triple-negative phenotypes, which are unresponsive to inhibitors of nuclear receptors or HER2/estrogen receptor (ER) agents, ICAM-1-targeted LFA1-P-coated GT DcNPs should be considered for clinical development to improve therapeutic outcomes of MBCs.
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spelling doaj.art-8c29b1dad6914e5893c0a991bad61a302023-11-23T15:03:40ZengMDPI AGPharmaceutics1999-49232021-12-011418910.3390/pharmaceutics14010089ICAM-1 Targeted Drug Combination Nanoparticles Enhanced Gemcitabine-Paclitaxel Exposure and Breast Cancer Suppression in Mouse ModelsLinxi Zhu0Qingxin Mu1Jesse Yu2James I. Griffin3Xiaolin Xu4Rodney J. Y. Ho5Department of Pharmaceutics, University of Washington, Seattle, WA 98195, USADepartment of Pharmaceutics, University of Washington, Seattle, WA 98195, USADepartment of Pharmaceutics, University of Washington, Seattle, WA 98195, USADepartment of Pharmaceutics, University of Washington, Seattle, WA 98195, USADepartment of Pharmaceutics, University of Washington, Seattle, WA 98195, USADepartment of Pharmaceutics, University of Washington, Seattle, WA 98195, USADespite the availability of molecularly targeted treatments such as antibodies and small molecules for human epidermal growth factor receptor 2 (HER2), hormone receptor (HR), and programmed death-ligand 1 (PD-L1), limited treatment options are available for advanced metastatic breast cancer (MBC), which constitutes ~90% mortality. Many of these monotherapies often lead to drug resistance. Novel MBC-targeted drug-combination therapeutic approaches that may reduce resistance are urgently needed. We investigated intercellular adhesion molecule-1 (ICAM-1), which is abundant in MBC, as a potential target to co-localize two current drug combinations, gemcitabine (G) and paclitaxel (T), assembled in a novel drug-combination nanoparticle (GT DcNP) form. With an ICAM-1-binding peptide (referred to as LFA1-P) coated on GT DcNPs, we evaluated the role of the LFA1-P density in breast cancer cell localization in vitro and in vivo. We found that 1–2% LFA1-P peptide incorporated on GT DcNPs provided optimal cancer cell binding in vitro with ~4× enhancement compared to non-peptide GT DcNPs. The in vivo probing of GT DcNPs labeled with a near-infrared marker, indocyanine green, in mice by bio-imaging and G and T analyses indicated LFA1-P enhanced drug and GT DcNP localization in breast cancer cells. The target/healthy tissue (lung/gastrointestinal (GI)) ratio of particles increased by ~60× compared to the non-ligand control. Collectively, these data indicated that LFA1 on GT DcNPs may provide ICAM-1-targeted G and T drug combination delivery to advancing MBC cells found in lung tissues. As ICAM-1 is generally expressed even in breast cancers that are triple-negative phenotypes, which are unresponsive to inhibitors of nuclear receptors or HER2/estrogen receptor (ER) agents, ICAM-1-targeted LFA1-P-coated GT DcNPs should be considered for clinical development to improve therapeutic outcomes of MBCs.https://www.mdpi.com/1999-4923/14/1/89metastatic breast cancernanoparticlesICAM-1targetingcombination therapy
spellingShingle Linxi Zhu
Qingxin Mu
Jesse Yu
James I. Griffin
Xiaolin Xu
Rodney J. Y. Ho
ICAM-1 Targeted Drug Combination Nanoparticles Enhanced Gemcitabine-Paclitaxel Exposure and Breast Cancer Suppression in Mouse Models
Pharmaceutics
metastatic breast cancer
nanoparticles
ICAM-1
targeting
combination therapy
title ICAM-1 Targeted Drug Combination Nanoparticles Enhanced Gemcitabine-Paclitaxel Exposure and Breast Cancer Suppression in Mouse Models
title_full ICAM-1 Targeted Drug Combination Nanoparticles Enhanced Gemcitabine-Paclitaxel Exposure and Breast Cancer Suppression in Mouse Models
title_fullStr ICAM-1 Targeted Drug Combination Nanoparticles Enhanced Gemcitabine-Paclitaxel Exposure and Breast Cancer Suppression in Mouse Models
title_full_unstemmed ICAM-1 Targeted Drug Combination Nanoparticles Enhanced Gemcitabine-Paclitaxel Exposure and Breast Cancer Suppression in Mouse Models
title_short ICAM-1 Targeted Drug Combination Nanoparticles Enhanced Gemcitabine-Paclitaxel Exposure and Breast Cancer Suppression in Mouse Models
title_sort icam 1 targeted drug combination nanoparticles enhanced gemcitabine paclitaxel exposure and breast cancer suppression in mouse models
topic metastatic breast cancer
nanoparticles
ICAM-1
targeting
combination therapy
url https://www.mdpi.com/1999-4923/14/1/89
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