scholarly journals Differential Effects of Gold Nanoparticles and Ionizing Radiation on Cell Motility between Primary Human Colonic and Melanocytic Cells and Their Cancerous Counterparts

2021 ◽  
Vol 22 (3) ◽  
pp. 1418
Author(s):  
Elham Shahhoseini ◽  
Masao Nakayama ◽  
Terrence J. Piva ◽  
Moshi Geso
Keyword(s):  
Gold Nanoparticles ◽  
Ionizing Radiation ◽  
Cancer Cells ◽  
Cell Lines ◽  
Colorectal Adenocarcinoma ◽  
X Rays ◽  
Cell Adherence ◽  
Cancerous Cell ◽  
Primary Colon ◽  
Radiation Induced

This study examined the effects of gold nanoparticles (AuNPs) and/or ionizing radiation (IR) on the viability and motility of human primary colon epithelial (CCD841) and colorectal adenocarcinoma (SW48) cells as well as human primary epidermal melanocytes (HEM) and melanoma (MM418-C1) cells. AuNPs up to 4 mM had no effect on the viability of these cell lines. The viability of the cancer cells was ~60% following exposure to 5 Gy. Exposure to 5 Gy X-rays or 1 mM AuNPs showed the migration of the cancer cells ~85% that of untreated controls, while co-treatment with AuNPs and IR decreased migration to ~60%. In the non-cancerous cell lines gap closure was enhanced by ~15% following 1 mM AuNPs or 5 Gy treatment, while for co-treatment it was ~22% greater than that for the untreated controls. AuNPs had no effect on cell re-adhesion, while IR enhanced only the re-adhesion of the cancer cell lines but not their non-cancerous counterparts. The addition of AuNPs did not enhance cell adherence. This different reaction to AuNPs and IR in the cancer and normal cells can be attributed to radiation-induced adhesiveness and metabolic differences between tumour cells and their non-cancerous counterparts.

scholarly journals Chitosan-Coated Gold Nanoparticles Induce Low Cytotoxicity and Low ROS Production in Primary Leucocytes, Independent of Their Proliferative Status

Pharmaceutics ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 942
Author(s):  
Helen Yarimet Lorenzo-Anota ◽  
Diana G. Zarate-Triviño ◽  
Jorge Alberto Uribe-Echeverría ◽  
Andrea Ávila-Ávila ◽  
José Raúl Rangel-López ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Cell Death ◽  
Cancer Cells ◽  
Cell Lines ◽  
Mononuclear Cells ◽  
Bone Marrow Cells ◽  
Lymphoid Cells ◽  
Ros Production ◽  
Biomedical Sciences ◽  
Peripheral Blood Mononuclear

(1) Background: Chitosan-coated gold nanoparticles (CH-AuNPs) have important theranostic applications in biomedical sciences, including cancer research. However, although cell cytotoxicity has been studied in cancerous cells, little is known about their effect in proliferating primary leukocytes. Here, we assessed the effect of CH-AuNPs and the implication of ROS on non-cancerous endothelial and fibroblast cell lines and in proliferative lymphoid cells. (2) Methods: The Turkevich method was used to synthetize gold nanoparticles. We tested cell viability, cell death, ROS production, and cell cycle in primary lymphoid cells, compared with non-cancer and cancer cell lines. Concanavalin A (ConA) or lipopolysaccharide (LPS) were used to induce proliferation on lymphoid cells. (3) Results: CH-AuNPs presented high cytotoxicity and ROS production against cancer cells compared to non-cancer cells; they also induced a different pattern of ROS production in peripheral blood mononuclear cells (PBMCs). No significant cell-death difference was found in PBMCs, splenic mononuclear cells, and bone marrow cells (BMC) with or without a proliferative stimuli. (4) Conclusions: Taken together, our results highlight the selectivity of CH-AuNPs to cancer cells, discarding a consistent cytotoxicity upon proliferative cells including endothelial, fibroblast, and lymphoid cells, and suggest their application in cancer treatment without affecting immune cells.

scholarly journals Regulation of Ionizing Radiation-Induced Adhesion of Breast Cancer Cells to Fibronectin by Alpha5beta1 Integrin

2014 ◽  
Vol 181 (6) ◽  
pp. 650-658 ◽  
Author(s):  
Shin Hee Lee ◽  
Huiwen Cheng ◽  
Ye Yuan ◽  
Shiyong Wu
Keyword(s):  
Breast Cancer ◽  
Ionizing Radiation ◽  
Cancer Cells ◽  
Breast Cancer Cells ◽  
Radiation Induced

scholarly journals Resveratrol enhances ionizing radiation-induced premature senescence in lung cancer cells

2013 ◽  
Vol 43 (6) ◽  
pp. 1999-2006 ◽  
Author(s):  
HONGMEI LUO ◽  
LU WANG ◽  
BRADLEY A. SCHULTE ◽  
AIMIN YANG ◽  
SHENGSONG TANG ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Ionizing Radiation ◽  
Cancer Cells ◽  
Lung Cancer Cells ◽  
Premature Senescence ◽  
Radiation Induced

Comparative cytotoxic effect of citrate-capped gold nanoparticles with different sizes on noncancerous and cancerous cell lines

2020 ◽  
Vol 22 (6) ◽  
Author(s):  
Indiani Conti Della Vechia ◽  
Bethina Trevisol Steiner ◽  
Mauricio Lawrence Freitas ◽  
Giulia dos Santos Pedroso Fidelis ◽  
Nathalia Coral Galvani ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Cell Lines ◽  
Cytotoxic Effect ◽  
Cancerous Cell

scholarly journals Sublethal Radiation Affects Antigen Processing and Presentation Genes to Enhance Immunogenicity of Cancer Cells

2020 ◽  
Vol 21 (7) ◽  
pp. 2573 ◽  
Author(s):  
Achamaporn Punnanitinont ◽  
Eric D. Kannisto ◽  
Junko Matsuzaki ◽  
Kunle Odunsi ◽  
Sai Yendamuri ◽  
...  
Keyword(s):  
New York ◽  
T Cells ◽  
Cancer Cells ◽  
Cell Lines ◽  
Antigen Processing ◽  
Tumor Antigens ◽  
T Cell Response ◽  
Live Cells ◽  
X Rays ◽  
Antigen Processing And Presentation

While immunotherapy in cancer is designed to stimulate effector T cell response, tumor-associated antigens have to be presented on malignant cells at a sufficient level for recognition of cancer by T cells. Recent studies suggest that radiotherapy enhances the anti-cancer immune response and also improves the efficacy of immunotherapy. To understand the molecular basis of such observations, we examined the effect of ionizing X-rays on tumor antigens and their presentation in a set of nine human cell lines representing cancers of the esophagus, lung, and head and neck. A single dose of 7.5 or 15 Gy radiation enhanced the New York esophageal squamous cell carcinoma 1 (NY-ESO-1) tumor-antigen-mediated recognition of cancer cells by NY-ESO-1-specific CD8+ T cells. Irradiation led to significant enlargement of live cells after four days, and microscopy and flow cytometry revealed multinucleation and polyploidy in the cells because of dysregulated mitosis, which was also revealed in RNA-sequencing-based transcriptome profiles of cells. Transcriptome analyses also showed that while radiation had no universal effect on genes encoding tumor antigens, it upregulated the expression of numerous genes involved in antigen processing and presentation pathways in all cell lines. This effect may explain the immunostimulatory role of cancer radiotherapy.

scholarly journals Ionizing radiation results in a mixture of cellular outcomes including mitotic catastrophe, senescence, methuosis, and iron-dependent cell death

2020 ◽  
Vol 11 (11) ◽  
Author(s):  
Sandy Adjemian ◽  
Teodora Oltean ◽  
Sofie Martens ◽  
Bartosz Wiernicki ◽  
Vera Goossens ◽  
...  
Keyword(s):  
Cell Death ◽  
Ionizing Radiation ◽  
Cell Lines ◽  
Case Reports ◽  
Cellular Responses ◽  
Mitotic Catastrophe ◽  
High Dose ◽  
X Rays ◽  
Cytotoxic Treatment ◽  
Dependent Cell

AbstractRadiotherapy is commonly used as a cytotoxic treatment of a wide variety of tumors. Interestingly, few case reports underlined its potential to induce immune-mediated abscopal effects, resulting in regression of metastases, distant from the irradiated site. These observations are rare, and apparently depend on the dose used, suggesting that dose-related cellular responses may be involved in the distant immunogenic responses. Ionizing radiation (IR) has been reported to elicit immunogenic apoptosis, necroptosis, mitotic catastrophe, and senescence. In order to link a cellular outcome with a particular dose of irradiation, we performed a systematic study in a panel of cell lines on the cellular responses at different doses of X-rays. Remarkably, we observed that all cell lines tested responded in a similar fashion to IR with characteristics of mitotic catastrophe, senescence, lipid peroxidation, and caspase activity. Iron chelators (but not Ferrostatin-1 or vitamin E) could prevent the formation of lipid peroxides and cell death induced by IR, suggesting a crucial role of iron-dependent cell death during high-dose irradiation. We also show that in K-Ras-mutated cells, IR can induce morphological features reminiscent of methuosis, a cell death modality that has been recently described following H-Ras or K-Ras mutation overexpression.

scholarly journals Triterpenoids from the Leaves of Centella asiatica Inhibit Ionizing Radiation-Induced Migration and Invasion of Human Lung Cancer Cells

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Ah-Reum Han ◽  
Sanghun Lee ◽  
Sujin Han ◽  
Yeon Jin Lee ◽  
Jin-Baek Kim ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Ionizing Radiation ◽  
Cancer Cells ◽  
Human Lung ◽  
Lung Cancer Cells ◽  
Human Lung Cancer ◽  
Migration And Invasion ◽  
Asiatic Acid ◽  
Human Lung Cancer Cells ◽  
Radiation Induced

Radiotherapy using ionizing radiation is a major therapeutic modality for advanced human lung cancers. However, ionizing radiation itself can induce malignant behaviors such as cancer cell migration and invasion, leading to local recurrence or distal metastasis. Therefore, safer and more effective agents that inhibit the metastatic behaviors of cancer cells in radiotherapy are needed. As a part of our ongoing search for new radiotherapy enhancers from medicinal herbs, we isolated the following triterpenoids from the ethanol extract of Centella asiatica: asiatic acid (1), madecassic acid (2), and asiaticoside (3). These compounds inhibited the ionizing radiation-induced migration and invasion of A549 human lung cancer cells at noncytotoxic concentrations. These results suggest that triterpenoids 1–3 isolated from C. asiatica are candidate natural compounds to enhance the effect of radiotherapy in patients with non-small-cell lung cancer.

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