PEGylated nanohydrogels delivering anti-MicroRNA-21 suppress ovarian tumor-associated angiogenesis in matrigel and chicken chorioallantoic membrane models
Introduction: Recently, MicroRNAs have gained increasing popularity as a novel nucleic acid-mediated medicine to regulate cancer-related protein expression. MicroRNA-21 (miR-21) is known as an oncogenic microRNA which is overexpressed in almost all cancers, including ovarian carcinoma that causes ci...
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| Format: | Article |
| Language: | English |
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Tabriz University of Medical Sciences
2022-09-01
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| Series: | BioImpacts |
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| Online Access: | https://bi.tbzmed.ac.ir/PDF/bi-12-449.pdf |
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| author | Sanaz Javanmardi Samira Sadat Abolmaali Mohammad Javad Mehrabanpour Mahmoud Reza Aghamaali Ali Mohammad Tamaddon |
| author_facet | Sanaz Javanmardi Samira Sadat Abolmaali Mohammad Javad Mehrabanpour Mahmoud Reza Aghamaali Ali Mohammad Tamaddon |
| author_sort | Sanaz Javanmardi |
| collection | DOAJ |
| description | Introduction: Recently, MicroRNAs have gained increasing popularity as a novel nucleic acid-mediated medicine to regulate cancer-related protein expression. MicroRNA-21 (miR-21) is known as an oncogenic microRNA which is overexpressed in almost all cancers, including ovarian carcinoma that causes cisplatin (cis-Pt) resistance and vascular endothelial growth factor (VEGF) upregulation. So, miRNA-based therapy can be regarded as knocking down miR-21 expression, inducing tumor cell apoptosis, and suppressing tumor-associated angiogenesis. Methods: PEG5k-carboxymethylated polyethyleneimine nanohydrogels (PEG5k-CMPEI) were loaded with AntagomiR-21 (As-21) at different ratios of nitrogen to phosphorus (N/P). Particle size and ζ potential were determined for the As-21 loaded nanohydrogels. In the cellular experiments, miR-21 expression, cytotoxicity, and cis-Pt sensitivity were studied on A2780 ovarian cancer cell lines. Finally, tumor cell apoptosis and tumor cell-associated angiogenesis were explored in vitro and in vivo. Results: The nanohydrogels, featuring homogeneous size distribution and redox-responsiveness, were steadily loaded by As-21 at the optimum N/P ratio of 5 without any aggregation as determined by transmission electron microscopy (TEM). As-21-loaded nanohydrogels caused sequence-specific suppression of miR-21 expression and provoked apoptosis through ROS generation and caspase 3 activation. Cisplatin cytotoxicity was remarkably enhanced in A2780R as compared to A2780S following co-incubation with As-21-loaded nanohydrogels. Interestingly, the condition of the medium derived from As-21 nanohydrogel-treated A2780R cells inhibited VEGF suppression in human umbilical vein endothelial cells (HUVECs) and the formation of tubes in Matrigel. Moreover, the condition medium caused angiogenesis inhibition in the chicken chorioallantoic membrane (CAM) model. Conclusion: These results suggest that nanohydrogel-based delivery of As-21 can be a promising neoadjuvant therapy for treating resistant tumors via apoptosis induction and angiogenesis suppression. |
| first_indexed | 2024-12-10T04:19:32Z |
| format | Article |
| id | doaj.art-9f4d4b609d504d12ab0f899fb279459b |
| institution | Directory Open Access Journal |
| issn | 2228-5660 2228-5652 |
| language | English |
| last_indexed | 2024-12-10T04:19:32Z |
| publishDate | 2022-09-01 |
| publisher | Tabriz University of Medical Sciences |
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| series | BioImpacts |
| spelling | doaj.art-9f4d4b609d504d12ab0f899fb279459b2022-12-22T02:02:29ZengTabriz University of Medical SciencesBioImpacts2228-56602228-56522022-09-0112544946110.34172/bi.2022.23263bi-23263PEGylated nanohydrogels delivering anti-MicroRNA-21 suppress ovarian tumor-associated angiogenesis in matrigel and chicken chorioallantoic membrane modelsSanaz Javanmardi0Samira Sadat Abolmaali1Mohammad Javad Mehrabanpour2Mahmoud Reza Aghamaali3Ali Mohammad Tamaddon4Department of Biology, Faculty of Science, University of Guilan, Rasht, IranPharmaceutical Nanotechnology Department and Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz 71345, IranRazi Serum and Vaccine Research Institute, Shiraz, IranDepartment of Biology, Faculty of Science, University of Guilan, Rasht, IranCenter for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz 71345, IranIntroduction: Recently, MicroRNAs have gained increasing popularity as a novel nucleic acid-mediated medicine to regulate cancer-related protein expression. MicroRNA-21 (miR-21) is known as an oncogenic microRNA which is overexpressed in almost all cancers, including ovarian carcinoma that causes cisplatin (cis-Pt) resistance and vascular endothelial growth factor (VEGF) upregulation. So, miRNA-based therapy can be regarded as knocking down miR-21 expression, inducing tumor cell apoptosis, and suppressing tumor-associated angiogenesis. Methods: PEG5k-carboxymethylated polyethyleneimine nanohydrogels (PEG5k-CMPEI) were loaded with AntagomiR-21 (As-21) at different ratios of nitrogen to phosphorus (N/P). Particle size and ζ potential were determined for the As-21 loaded nanohydrogels. In the cellular experiments, miR-21 expression, cytotoxicity, and cis-Pt sensitivity were studied on A2780 ovarian cancer cell lines. Finally, tumor cell apoptosis and tumor cell-associated angiogenesis were explored in vitro and in vivo. Results: The nanohydrogels, featuring homogeneous size distribution and redox-responsiveness, were steadily loaded by As-21 at the optimum N/P ratio of 5 without any aggregation as determined by transmission electron microscopy (TEM). As-21-loaded nanohydrogels caused sequence-specific suppression of miR-21 expression and provoked apoptosis through ROS generation and caspase 3 activation. Cisplatin cytotoxicity was remarkably enhanced in A2780R as compared to A2780S following co-incubation with As-21-loaded nanohydrogels. Interestingly, the condition of the medium derived from As-21 nanohydrogel-treated A2780R cells inhibited VEGF suppression in human umbilical vein endothelial cells (HUVECs) and the formation of tubes in Matrigel. Moreover, the condition medium caused angiogenesis inhibition in the chicken chorioallantoic membrane (CAM) model. Conclusion: These results suggest that nanohydrogel-based delivery of As-21 can be a promising neoadjuvant therapy for treating resistant tumors via apoptosis induction and angiogenesis suppression.https://bi.tbzmed.ac.ir/PDF/bi-12-449.pdfnanohydrogelantagomir-21microrna deliveryapoptosisangiogenesis |
| spellingShingle | Sanaz Javanmardi Samira Sadat Abolmaali Mohammad Javad Mehrabanpour Mahmoud Reza Aghamaali Ali Mohammad Tamaddon PEGylated nanohydrogels delivering anti-MicroRNA-21 suppress ovarian tumor-associated angiogenesis in matrigel and chicken chorioallantoic membrane models BioImpacts nanohydrogel antagomir-21 microrna delivery apoptosis angiogenesis |
| title | PEGylated nanohydrogels delivering anti-MicroRNA-21 suppress ovarian tumor-associated angiogenesis in matrigel and chicken chorioallantoic membrane models |
| title_full | PEGylated nanohydrogels delivering anti-MicroRNA-21 suppress ovarian tumor-associated angiogenesis in matrigel and chicken chorioallantoic membrane models |
| title_fullStr | PEGylated nanohydrogels delivering anti-MicroRNA-21 suppress ovarian tumor-associated angiogenesis in matrigel and chicken chorioallantoic membrane models |
| title_full_unstemmed | PEGylated nanohydrogels delivering anti-MicroRNA-21 suppress ovarian tumor-associated angiogenesis in matrigel and chicken chorioallantoic membrane models |
| title_short | PEGylated nanohydrogels delivering anti-MicroRNA-21 suppress ovarian tumor-associated angiogenesis in matrigel and chicken chorioallantoic membrane models |
| title_sort | pegylated nanohydrogels delivering anti microrna 21 suppress ovarian tumor associated angiogenesis in matrigel and chicken chorioallantoic membrane models |
| topic | nanohydrogel antagomir-21 microrna delivery apoptosis angiogenesis |
| url | https://bi.tbzmed.ac.ir/PDF/bi-12-449.pdf |
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