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Simsone Z, Feivalds T, Harju L, Miķelsone I, Blāķe I, Bērziņš J, Buiķis I. Morphological and Immunocytochemical Characterization of Paclitaxel-Induced Microcells in Sk-Mel-28 Melanoma Cells. Biomedicines 2024; 12:1576. [PMID: 39062149 DOI: 10.3390/biomedicines12071576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 07/10/2024] [Accepted: 07/13/2024] [Indexed: 07/28/2024] Open
Abstract
Biomarkers, including proteins, nucleic acids, antibodies, and peptides, are essential for identifying diseases such as cancer and differentiating between healthy and abnormal cells in patients. To date, studies have shown that cancer stem cells have DNA repair mechanisms that deter the effects of medicinal treatment. Experiments with cell cultures and chemotherapy treatments of these cultures have revealed the presence of small cells, with a small amount of cytoplasm that can be intensively stained with azure eosin, called microcells. Microcells develop during sporosis from a damaged tumor macrocell. After anticancer therapy in tumor cells, a defective macrocell may produce one or more microcells. This study aims to characterize microcell morphology in melanoma cell lines. In this investigation, we characterized the population of cancer cell microcells after applying paclitaxel treatment to a Sk-Mel-28 melanoma cell line using immunocytochemical cell marker detection and fluorescent microscopy. Paclitaxel-treated cancer cells show stronger expression of stem-associated ALDH2, SOX2, and Nanog markers than untreated cells. The proliferation of nuclear antigens in cells and the synthesis of RNA in microcells indicate cell self-defense, promoting resistance to applied therapy. These findings improve our understanding of microcell behavior in melanoma, potentially informing future strategies to counteract drug resistance in cancer treatment.
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Affiliation(s)
- Zane Simsone
- Institute of Cardiology and Regenerative Medicine, The University of Latvia, Jelgavas Street 3, LV-1004 Riga, Latvia
| | - Tālivaldis Feivalds
- Institute of Cardiology and Regenerative Medicine, The University of Latvia, Jelgavas Street 3, LV-1004 Riga, Latvia
| | - Līga Harju
- Institute of Cardiology and Regenerative Medicine, The University of Latvia, Jelgavas Street 3, LV-1004 Riga, Latvia
| | - Indra Miķelsone
- Department of Human Physiology and Biochemistry, Rīga Stradiņš University, Dzirciema Street 16, LV-1007 Riga, Latvia
| | - Ilze Blāķe
- Faculty of Medicine and Life Science, The University of Latvia, Jelgavas Street 1, LV-1004 Riga, Latvia
| | - Juris Bērziņš
- Institute of Cardiology and Regenerative Medicine, The University of Latvia, Jelgavas Street 3, LV-1004 Riga, Latvia
| | - Indulis Buiķis
- Institute of Cardiology and Regenerative Medicine, The University of Latvia, Jelgavas Street 3, LV-1004 Riga, Latvia
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Zhuang Q, Chao T, Wu Y, Wei T, Ren J, Cao Z, Peng R, Liu Z. Fluorocarbon Modified Chitosan to Enable Transdermal Immunotherapy for Melanoma Treatment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303634. [PMID: 37467294 DOI: 10.1002/smll.202303634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/03/2023] [Indexed: 07/21/2023]
Abstract
Despite the rapid development of the immune checkpoint blockade (ICB) in melanoma treatment, the immunosuppressive tumor microenvironment (TME) still hinders the efficacy of immunotherapy. Recently, using agonists to modulate the TME have presented promising clinical responses in combination with ICB therapies. However, local intratumoral injection as the commonly used administration route for immune agonists would lead to low patient compliance. Herein, it is demonstrated that fluorocarbon modified chitosan (FCS) can self-assemble with immune adjuvant polyriboinosinic:polyribocytidylic acid (poly(I:C)), forming nanoparticles that can penetrate through cutaneous barriers to enable transdermal delivery. FCS/poly(I:C) can efficiently activate various types of cells presented on the transdermal route (through the skin into the TME), leading to IRF3-mediated IFN-β induction in the activated cells for tumor repression. Furthermore, transdermal FCS/poly(I:C) treatment can significantly magnify the efficacy of the programmed cell death protein 1 (PD-1) blockade in melanoma treatment through activating the immunosuppressive TME. This study approach offered an attractive transdermal approach in combined with ICB therapy for combined immunotherapy, particularly suitable for melanoma treatment.
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Affiliation(s)
- Qi Zhuang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu, 215123, China
| | - Ting Chao
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu, 215123, China
| | - Yuanyuan Wu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu, 215123, China
| | - Ting Wei
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- InnoBM Pharmaceuticals, Suzhou, Jiangsu, 215123, China
| | - Jiacheng Ren
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu, 215123, China
| | - Zhiqing Cao
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu, 215123, China
| | - Rui Peng
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu, 215123, China
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu, 215123, China
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Sano E, Tashiro S, Tsumoto K, Ueda T. Differential Effects of IFN-β on the Survival and Growth of Human Vascular Smooth Muscle and Endothelial Cells. Biores Open Access 2015; 4:1-15. [PMID: 26309778 PMCID: PMC4497630 DOI: 10.1089/biores.2014.0052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
It has been documented that interferon (IFN)-β is effective against the genesis of atherosclerosis or hyperplastic arterial disease in animal model. The main mechanism of the efficacy was antiproliferative action on the growth of vascular smooth muscle cells (SMC). To understand more about the mechanisms that are responsible for the efficacy, we examined minutely the effects of IFN-β on the apoptosis and growth of vascular SMC and endothelial cells (EC). IFN-β enhanced SMC apoptosis in serum starved medium. Conversely, EC apoptosis induced by serum and growth factor deprivation was inhibited by IFN-β. The induction of SMC apoptosis and anti-apoptotic effect on EC linked to the expression of pro-apoptotic bax mRNA and caspase-3 activities. Anti-apoptotic bcl-2 mRNA was also up-regulated in EC. IFN-β inhibited SMC growth in a dose dependent manner. However, the growth of EC was rather enhanced by a low dose of IFNs. The antiproliferative effect on SMC associated with the activation of p21 and increase of G0/G1 arrested cells. The growth stimulation on EC was considered to link with increase of S and G2/M phase cells. SMC produced IFN-β in response to various stimulants. However, IFN-β was not induced in EC. These suggested that endogenous IFN-β from SMC may act on EC and affect to EC functions. In this study, it was clarified that IFN-β enhances SMC apoptosis and inhibits the EC apoptosis, and stimulates the EC growth. These effects were considered to contribute to a cure against hyperplastic arterial diseases as the mechanisms in the efficacy of IFN-β.
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Affiliation(s)
- Emiko Sano
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo , Chiba, Japan
| | - Shinya Tashiro
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo , Chiba, Japan . ; Department of Medical Proteomics Laboratory, Institute of Medical Science, The University of Tokyo , Tokyo, Japan
| | - Kouhei Tsumoto
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo , Chiba, Japan . ; Department of Medical Proteomics Laboratory, Institute of Medical Science, The University of Tokyo , Tokyo, Japan . ; Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo , Tokyo, Japan
| | - Takuya Ueda
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo , Chiba, Japan
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Blackham AU, Northrup SA, Willingham M, Sirintrapun J, Russell GB, Lyles DS, Stewart JH. Molecular determinants of susceptibility to oncolytic vesicular stomatitis virus in pancreatic adenocarcinoma. J Surg Res 2013; 187:412-26. [PMID: 24252853 DOI: 10.1016/j.jss.2013.10.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 10/03/2013] [Accepted: 10/17/2013] [Indexed: 11/26/2022]
Abstract
BACKGROUND M protein mutant vesicular stomatitis virus (M51R-VSV) has oncolytic properties against many cancers. However, some cancer cells are resistant to M51R-VSV. Herein, we evaluate the molecular determinants of vesicular stomatitis virus (VSV) resistance in pancreatic adenocarcinoma cells. METHODS Cell viability and the effect of β-interferon (IFN) were analyzed using 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium assay. Gene expression was evaluated via microarray analysis. Cell infectability was measured by flow cytometry. Xenografts were established in athymic nude mice and treated with intratumoral M51R-VSV. RESULTS Four of five pancreatic cancer cell lines were sensitive to M51R-VSV, whereas Panc 03.27 cells remained resistant (81 ± 3% viability 72 h after single-cycle infection). Comparing sensitive MiaPaCa2 cells with resistant Panc 03.27 cells, significant differences in gene expression were found relating to IFN signaling (P = 2 × 10(-5)), viral entry (P = 3 × 10(-4)), and endocytosis (P = 7 × 10(-4)). MiaPaCa2 cells permitted high levels of VSV infection, whereas Panc 03.27 cells were capable of resisting VSV cell entry even at high multiplicities of infection. Extrinsic β-IFN overcame apparent defects in IFN-mediated pathways in MiaPaCa2 cells conferring VSV resistance. In contrast, β-IFN decreased cell viability in Panc 3.27 cells, suggesting intact antiviral mechanisms. VSV-treated xenografts exhibited reduced tumor growth relative to controls in both MiaPaCa2 (1423 ± 345% versus 164 ± 136%; P < 0.001) and Panc 3.27 (979 ± 153% versus 50 ± 56%; P = 0.002) tumors. Significant lymphocytic infiltration was seen in M51R-VSV-treated Panc 03.27 xenografts. CONCLUSIONS Inhibition of VSV endocytosis and intact IFN-mediated defenses are responsible for M51R-VSV resistance in pancreatic adenocarcinoma cells. M51R-VSV treatment appears to induce antitumor cellular immunity in vivo, which may expand its clinical efficacy.
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Affiliation(s)
- Aaron U Blackham
- Division of Surgical Sciences, Department of General Surgery, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Scott A Northrup
- Division of Surgical Sciences, Department of General Surgery, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Mark Willingham
- Department of Pathology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Joseph Sirintrapun
- Department of Pathology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Greg B Russell
- Division of Public Health Sciences, Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Douglas S Lyles
- Department of Biochemistry, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - John H Stewart
- Division of Surgical Sciences, Department of General Surgery, Wake Forest School of Medicine, Winston-Salem, North Carolina.
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