Nanoparticles-Facilitated Intracellular Transport of siRNAs against Individual Integrin Subunits Inhibits Growth of Breast Cancer Cells

For cells and tissues, cell–cell and cell–extracellular matrix adhesion is important for proliferation, differentiation, and response to mechanical stimuli. This adhesion is provided by various cell adhesion molecules (CAMs). However, in breast cancer, depending upon the type and stage, this adheren...

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Autores principales: Maeirah Ashaie, Ezharul Hoque Chowdhury
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Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:af99a658c33449d0bdda0aab07d732d12021-11-25T16:37:58ZNanoparticles-Facilitated Intracellular Transport of siRNAs against Individual Integrin Subunits Inhibits Growth of Breast Cancer Cells10.3390/app1122107822076-3417https://doaj.org/article/af99a658c33449d0bdda0aab07d732d12021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10782https://doaj.org/toc/2076-3417For cells and tissues, cell–cell and cell–extracellular matrix adhesion is important for proliferation, differentiation, and response to mechanical stimuli. This adhesion is provided by various cell adhesion molecules (CAMs). However, in breast cancer, depending upon the type and stage, this adherence is dysregulated where the expression of these cell adhesion molecules is either overregulated or unregulated, triggering essential oncogenic pathways. Thus, to control the invasiveness of tumor cells, and reduce metastasis, regulating the homophilic and heterophilic interaction of these molecules and controlling the essential cell pathways is important. In this study, we targeted critical CAMs- integrins to regulate their aberrated behavior via siRNAs delivery. However, as due to charge repulsion and propensity to be degraded by nucleases prior to reaching the target site, naked siRNAs are unable to cross plasma membrane, use of a suitable carrier vehicle is essential. Thus, we employed carbonate apatite (CA), to deliver the selected siRNAs targeting integrin αv, α6, β1, β3, β4, β5, and β6 subunits to various breast cancer cell lines and 4T1-breast cancer induced murine model. Delivery of individual integrin siRNAs complexed with CA nanoparticles (NPs) reduced cell viability and caused decrease in tumor burden. To check the gene knockdown effects on phosphatidylinositol 3-kinase/protein kinase B (PI3K/AKT) and extracellular signal–regulated kinases/mitogen-activated protein kinase (ERK/MAPK) pathways, Western blot analysis was performed, revealing downregulation of the signaling molecules. Thus, CA-facilitated gene therapy targeting various integrins could poise potential therapeutic modality against breast cancer.Maeirah AshaieEzharul Hoque ChowdhuryMDPI AGarticlecell adhesion molecules (CAM)integrinssiRNAscarbonate apatite (CA)nanoparticlesTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10782, p 10782 (2021)
institution DOAJ
collection DOAJ
language EN
topic cell adhesion molecules (CAM)
integrins
siRNAs
carbonate apatite (CA)
nanoparticles
Technology
T
Engineering (General). Civil engineering (General)
TA1-2040
Biology (General)
QH301-705.5
Physics
QC1-999
Chemistry
QD1-999
spellingShingle cell adhesion molecules (CAM)
integrins
siRNAs
carbonate apatite (CA)
nanoparticles
Technology
T
Engineering (General). Civil engineering (General)
TA1-2040
Biology (General)
QH301-705.5
Physics
QC1-999
Chemistry
QD1-999
Maeirah Ashaie
Ezharul Hoque Chowdhury
Nanoparticles-Facilitated Intracellular Transport of siRNAs against Individual Integrin Subunits Inhibits Growth of Breast Cancer Cells
description For cells and tissues, cell–cell and cell–extracellular matrix adhesion is important for proliferation, differentiation, and response to mechanical stimuli. This adhesion is provided by various cell adhesion molecules (CAMs). However, in breast cancer, depending upon the type and stage, this adherence is dysregulated where the expression of these cell adhesion molecules is either overregulated or unregulated, triggering essential oncogenic pathways. Thus, to control the invasiveness of tumor cells, and reduce metastasis, regulating the homophilic and heterophilic interaction of these molecules and controlling the essential cell pathways is important. In this study, we targeted critical CAMs- integrins to regulate their aberrated behavior via siRNAs delivery. However, as due to charge repulsion and propensity to be degraded by nucleases prior to reaching the target site, naked siRNAs are unable to cross plasma membrane, use of a suitable carrier vehicle is essential. Thus, we employed carbonate apatite (CA), to deliver the selected siRNAs targeting integrin αv, α6, β1, β3, β4, β5, and β6 subunits to various breast cancer cell lines and 4T1-breast cancer induced murine model. Delivery of individual integrin siRNAs complexed with CA nanoparticles (NPs) reduced cell viability and caused decrease in tumor burden. To check the gene knockdown effects on phosphatidylinositol 3-kinase/protein kinase B (PI3K/AKT) and extracellular signal–regulated kinases/mitogen-activated protein kinase (ERK/MAPK) pathways, Western blot analysis was performed, revealing downregulation of the signaling molecules. Thus, CA-facilitated gene therapy targeting various integrins could poise potential therapeutic modality against breast cancer.
format article
author Maeirah Ashaie
Ezharul Hoque Chowdhury
author_facet Maeirah Ashaie
Ezharul Hoque Chowdhury
author_sort Maeirah Ashaie
title Nanoparticles-Facilitated Intracellular Transport of siRNAs against Individual Integrin Subunits Inhibits Growth of Breast Cancer Cells
title_short Nanoparticles-Facilitated Intracellular Transport of siRNAs against Individual Integrin Subunits Inhibits Growth of Breast Cancer Cells
title_full Nanoparticles-Facilitated Intracellular Transport of siRNAs against Individual Integrin Subunits Inhibits Growth of Breast Cancer Cells
title_fullStr Nanoparticles-Facilitated Intracellular Transport of siRNAs against Individual Integrin Subunits Inhibits Growth of Breast Cancer Cells
title_full_unstemmed Nanoparticles-Facilitated Intracellular Transport of siRNAs against Individual Integrin Subunits Inhibits Growth of Breast Cancer Cells
title_sort nanoparticles-facilitated intracellular transport of sirnas against individual integrin subunits inhibits growth of breast cancer cells
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/af99a658c33449d0bdda0aab07d732d1
work_keys_str_mv AT maeirahashaie nanoparticlesfacilitatedintracellulartransportofsirnasagainstindividualintegrinsubunitsinhibitsgrowthofbreastcancercells
AT ezharulhoquechowdhury nanoparticlesfacilitatedintracellulartransportofsirnasagainstindividualintegrinsubunitsinhibitsgrowthofbreastcancercells
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