Coinhibition of S1PR1 and GP130 by siRNA‐loaded alginate‐conjugated trimethyl chitosan nanoparticles robustly blocks development of cancer cells
Autor: | Farhad Jadidi-Niaragh, Sadaf Moghadaszadeh Ardebili, Narges Rostami, Afshin Nikkhoo, Melika Sadat Haeri, Masoumeh Baghaei, Ghasem Ghalamfarsa, Mehdi Yousefi, Navideh Haghnavaz, Fatemeh Atyabi, Shohreh Farhadi, Yalda Khazaei-Poul, Gholamabas Sabz, Afshin Namdar, Nasimeh Aghaei Vanda, Tohid Kazemi |
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Rok vydání: | 2020 |
Předmět: |
STAT3 Transcription Factor
0301 basic medicine Small interfering RNA Physiology Clinical Biochemistry Melanoma Experimental Breast Neoplasms Mice 03 medical and health sciences Drug Delivery Systems 0302 clinical medicine Cell Line Tumor Cytokine Receptor gp130 Tumor Microenvironment medicine Animals Humans RNA Small Interfering STAT3 Sphingosine-1-Phosphate Receptors S1PR1 Chitosan Tumor microenvironment biology Interleukin-6 Chemistry Serine Endopeptidases Cancer Cell Biology medicine.disease Gene Expression Regulation Neoplastic 030104 developmental biology 030220 oncology & carcinogenesis Cancer cell Cancer research biology.protein Nanoparticles Proprotein Convertases Nanocarriers Signal transduction |
Zdroj: | Journal of Cellular Physiology. 235:9702-9717 |
ISSN: | 1097-4652 0021-9541 |
Popis: | There is an interconnected network between S1P/sphingosine-1-phosphate receptor 1 (S1PR1), IL-6/glycoprotein 130 (GP130), and signal transducer and activator of transcription 3 (STAT3) signaling pathways in the tumor microenvironment, which leads to cancer progression. S1P/S1PR1 and IL-6/GP130 signaling pathways phosphorylate and activate STAT3, and it then induces the expression of S1PR1 and interleukin-6 (IL-6) in a positive feedback loop leading to cancer progression. We hypothesized that blockade of this amplification loop can suppress the growth and development of cancer cells. Therefore, we silenced STAT3 upstream molecules including the S1PR1 and GP130 molecules in cancer cells using small interfering RNA (siRNA)-loaded alginate-conjugated trimethyl chitosan (ATMC) nanoparticles (NPs). The generated NPs had competent properties including the appropriate size, zeta potential, polydispersity index, morphology, high uptake of siRNA, high rate of capacity, high stability, and low toxicity. We evaluated the effects of siRNA loaded ATMC NPs on tumor hallmarks of three murine-derived cancer cell lines, including 4T1 (breast cancer), B16-F10 (melanoma), and CT26 (colon cancer). The results confirmed the tumor-suppressive effects of combinational targeting of S1PR1 and GP130. Moreover, combination therapy could potently suppress tumor growth as assessed by the chick chorioallantoic membrane assay. In this study, we targeted this positive feedback loop for the first time and applied this novel combination therapy, which provides a promising approach for cancer treatment. The development of a potent nanocarrier system with ATMC for this combination was also another aspect of this study, which should be further investigated in cancer animal models in further studies. |
Databáze: | OpenAIRE |
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