CD9 Upregulation-Decreased CCL21 Secretion in Mesenchymal Stem Cells Reduces Cancer Cell Migration

Tetraspanin CD9 is widely expressed on various cell types, such as cancer cells and mesenchymal stem cells (MSCs), and/or cell-released exosomes. It has been reported that exosomal CD9 plays an important role in intercellular communications involved in cancer cell migration and metastasis. However,...

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Main Authors: Chia-Chu Hsieh, Szu-Chun Hsu, Ming Yao, Dong-Ming Huang
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/22/4/1738
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author Chia-Chu Hsieh
Szu-Chun Hsu
Ming Yao
Dong-Ming Huang
author_facet Chia-Chu Hsieh
Szu-Chun Hsu
Ming Yao
Dong-Ming Huang
author_sort Chia-Chu Hsieh
collection DOAJ
description Tetraspanin CD9 is widely expressed on various cell types, such as cancer cells and mesenchymal stem cells (MSCs), and/or cell-released exosomes. It has been reported that exosomal CD9 plays an important role in intercellular communications involved in cancer cell migration and metastasis. However, reports on the effect of the CD9 of MSCs or MSC-derived exosomes on cancer cell migration are still lacking. In this study, using a transwell migration assay, we found that both dextran-coated iron oxide nanoparticles (dex-IO NPs) and ionomycin stimulated exosomal CD9 expression in human MSCs (hMSCs); however, hMSCs could not deliver them to melanoma cells to affect cell migration. Interestingly, a reduced migration of melanoma cell line was observed when the ionomycin-incubated hMSC-conditioned media but not dex-IO NP-labeled hMSC-conditioned media were in the bottom chamber. In addition, we found that dex-IO NPs decreased cellular CD9 expression in hMSCs but ionomycin increased this. Simultaneously, we found that ionomycin suppressed the expression and secretion of the chemokine CCL21 in hMSCs. The silencing of CD9 demonstrated an inhibitory role of cellular CD9 in CCL21 expression in hMSCs, suggesting that ionomycin could upregulate cellular CD9 to decrease CCL21 expression and secretion of hMSCs, which would reduce the migration of B16F10, A549 and U87MG cancer cell lines due to chemoattraction reduction of CCL21. The present study not only highlights the important role of bone marrow-derived hMSCs’ CD9-mediated CCL21 regulation in cancer bone metastasis but also suggests a new distinct pharmaceutical strategy for prevention or/and therapy of cancer metastasis.
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spelling doaj.art-d70bbbe10ae64fb3b58224557dca2f3f2023-12-03T13:01:29ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-02-01224173810.3390/ijms22041738CD9 Upregulation-Decreased CCL21 Secretion in Mesenchymal Stem Cells Reduces Cancer Cell MigrationChia-Chu Hsieh0Szu-Chun Hsu1Ming Yao2Dong-Ming Huang3Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli 35053, TaiwanDepartment of Laboratory Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei 100225, TaiwanDepartment of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei 100225, TaiwanInstitute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli 35053, TaiwanTetraspanin CD9 is widely expressed on various cell types, such as cancer cells and mesenchymal stem cells (MSCs), and/or cell-released exosomes. It has been reported that exosomal CD9 plays an important role in intercellular communications involved in cancer cell migration and metastasis. However, reports on the effect of the CD9 of MSCs or MSC-derived exosomes on cancer cell migration are still lacking. In this study, using a transwell migration assay, we found that both dextran-coated iron oxide nanoparticles (dex-IO NPs) and ionomycin stimulated exosomal CD9 expression in human MSCs (hMSCs); however, hMSCs could not deliver them to melanoma cells to affect cell migration. Interestingly, a reduced migration of melanoma cell line was observed when the ionomycin-incubated hMSC-conditioned media but not dex-IO NP-labeled hMSC-conditioned media were in the bottom chamber. In addition, we found that dex-IO NPs decreased cellular CD9 expression in hMSCs but ionomycin increased this. Simultaneously, we found that ionomycin suppressed the expression and secretion of the chemokine CCL21 in hMSCs. The silencing of CD9 demonstrated an inhibitory role of cellular CD9 in CCL21 expression in hMSCs, suggesting that ionomycin could upregulate cellular CD9 to decrease CCL21 expression and secretion of hMSCs, which would reduce the migration of B16F10, A549 and U87MG cancer cell lines due to chemoattraction reduction of CCL21. The present study not only highlights the important role of bone marrow-derived hMSCs’ CD9-mediated CCL21 regulation in cancer bone metastasis but also suggests a new distinct pharmaceutical strategy for prevention or/and therapy of cancer metastasis.https://www.mdpi.com/1422-0067/22/4/1738cancer cell migrationmesenchymal stem cellsCD9CCL21 chemokineionomycinnanoparticles
spellingShingle Chia-Chu Hsieh
Szu-Chun Hsu
Ming Yao
Dong-Ming Huang
CD9 Upregulation-Decreased CCL21 Secretion in Mesenchymal Stem Cells Reduces Cancer Cell Migration
International Journal of Molecular Sciences
cancer cell migration
mesenchymal stem cells
CD9
CCL21 chemokine
ionomycin
nanoparticles
title CD9 Upregulation-Decreased CCL21 Secretion in Mesenchymal Stem Cells Reduces Cancer Cell Migration
title_full CD9 Upregulation-Decreased CCL21 Secretion in Mesenchymal Stem Cells Reduces Cancer Cell Migration
title_fullStr CD9 Upregulation-Decreased CCL21 Secretion in Mesenchymal Stem Cells Reduces Cancer Cell Migration
title_full_unstemmed CD9 Upregulation-Decreased CCL21 Secretion in Mesenchymal Stem Cells Reduces Cancer Cell Migration
title_short CD9 Upregulation-Decreased CCL21 Secretion in Mesenchymal Stem Cells Reduces Cancer Cell Migration
title_sort cd9 upregulation decreased ccl21 secretion in mesenchymal stem cells reduces cancer cell migration
topic cancer cell migration
mesenchymal stem cells
CD9
CCL21 chemokine
ionomycin
nanoparticles
url https://www.mdpi.com/1422-0067/22/4/1738
work_keys_str_mv AT chiachuhsieh cd9upregulationdecreasedccl21secretioninmesenchymalstemcellsreducescancercellmigration
AT szuchunhsu cd9upregulationdecreasedccl21secretioninmesenchymalstemcellsreducescancercellmigration
AT mingyao cd9upregulationdecreasedccl21secretioninmesenchymalstemcellsreducescancercellmigration
AT dongminghuang cd9upregulationdecreasedccl21secretioninmesenchymalstemcellsreducescancercellmigration