scholarly journals Nitric Oxide as a Potential Adjuvant Therapeutic for Neuroblastoma: Effects of NO on Murine N2a Cells

2020 ◽  
Vol 7 (2) ◽  
pp. 51
Author(s):  
Jenna L. Gordon ◽  
Melissa M. Reynolds ◽  
Mark A. Brown
Keyword(s):  
Nitric Oxide ◽  
Cell Viability ◽  
Pediatric Cancer ◽  
Clinical Management ◽  
Colony Formation ◽  
Neuroblastoma Cells ◽  
Dermal Fibroblasts ◽  
Cell Analysis ◽  
Monosodium Salt ◽  
The Impact

Neuroblastoma, the most common extracranial solid tumor in children, accounts for 15% of all pediatric cancer deaths. Pharmaceutical applications of S-Nitrosylation, which, under normal conditions is involved with a host of epigenetic and embryological development pathways, have exhibited great potential for use as adjuvant therapeutics in the clinical management of cancer. Herein, an evaluation of the impact of nitric oxide (NO) as a potent anticancer agent on murine neuroblastoma cells is presented. Excitingly cell viability, colony formation, and non-carcinogenic cell analysis illustrate the significance and practicality of NO as a cytotoxic anticancer therapeutic. Resazurin, WST-8 (2-(2-methoxy-4-nitrophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium, monosodium salt), and MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-diphyltetrazolium bromide) assays consistently displayed a moderate, ~20–25% reduction in cell viability after exposure to 1 mM S-Nitrosoglutathione (GSNO). A colony formation assay demonstrated that treated cells no longer exhibited colony formation capacity. Identically GSNO-treated Adult Human Dermal Fibroblasts (HDFa) exhibited no decrease in viability, indicating potential discrimination between neoplastic and normal cells. Collectively, our findings indicate a potential application for NO as an adjuvant therapeutic in the clinical management of neuroblastoma.

scholarly journals Anticancer potential of nitric oxide (NO) in neuroblastoma treatment

RSC Advances ◽  
2021 ◽  
Vol 11 (16) ◽  
pp. 9112-9120
Author(s):  
Jenna L. Gordon ◽  
Kristin J. Hinsen ◽  
Melissa M. Reynolds ◽  
Tyler A. Smith ◽  
Haley O. Tucker ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Cell Cycle ◽  
Cell Division ◽  
Cell Viability ◽  
Cell Cycle Arrest ◽  
Neuroblastoma Cells ◽  
Cycle Arrest

S-Nitrosoglutathione (GSNO) reduces cell viability, inhibits cell division, and induces cell cycle arrest and apoptosis in neuroblastoma cells.

scholarly journals The Impact of [C16Pyr][Amp] on the Aggressiveness in Breast and Prostate Cancer Cell Lines

2020 ◽  
Vol 21 (24) ◽  
pp. 9584
Author(s):  
Filipa Quintela Vieira ◽  
Ângela Marques-Magalhães ◽  
Vera Miranda-Gonçalves ◽  
Ricardo Ferraz ◽  
Mónica Vieira ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Cell Viability ◽  
Cell Lines ◽  
Colony Formation ◽  
Therapeutic Agent ◽  
Prostate Cancer Cell ◽  
Molecular Level ◽  
Gene Expressions ◽  
Breast And Prostate Cancer ◽  
The Impact

Breast (BrCa) and prostate (PCa) cancers are the most common malignancies in women and men, respectively. The available therapeutic options for these tumors are still not curative and have severe side effects. Therefore, there is an urgent need for more effective antineoplastic agents. Herein, BrCa, PCa, and benign cell lines were treated with two ionic liquids and two quinoxalines and functional experiments were performed—namely cell viability, apoptosis, cytotoxicity, and colony formation assays. At the molecular level, an array of gene expressions encompassing several molecular pathways were used to explore the impact of treatment on gene expression. Although both quinoxalines and the ionic liquid [C2OHMIM][Amp] did not show any effect on the BrCa and PCa cell lines, [C16Pyr][Amp] significantly decreased cell viability and colony formation ability, while it increased the apoptosis levels of all cell lines. Importantly, [C16Pyr][Amp] was found to be more selective for cancer cells and less toxic than cisplatin. At the molecular level, this ionic liquid was also associated with reduced expression levels of CPT2, LDHA, MCM2, and SKP2, in both BrCa and PCa cell lines. Hence, [C16Pyr][Amp] was shown to be a promising anticancer therapeutic agent for BrCa and PCa cell lines.

scholarly journals Gastrin and Nitric Oxide Production in Cultured Gastric Antral Mucosa Are Altered in Response to a Gastric Digest of a Dietary Supplement

2021 ◽  
Vol 8 ◽  
Author(s):  
Jennifer L. MacNicol ◽  
Wendy Pearson
Keyword(s):  
Nitric Oxide ◽  
Cell Viability ◽  
Dietary Supplement ◽  
Culture Media ◽  
Gastric Fluid ◽  
Simulated Gastric Fluid ◽  
Antral Mucosa ◽  
The Impact

In vitro organ culture can provide insight into isolated mucosal responses to particular environmental stimuli. The objective of the present study was to investigate the impact of a prolonged culturing time as well as the addition of acidic gastric fluid into the in vitro environment of cultured gastric antral tissue to evaluate how altering the commonly used neutral environment impacted tissue. Furthermore, we aimed to investigate the impact of G's Formula, a dietary supplement for horses, on the secretion of gastrin, interleukin1-beta (IL-1β), and nitric oxide (NO). These biomarkers are of interest due to their effects on gastric motility and mucosal activity. Gastric mucosal tissue explants from porcine stomachs were cultured in the presence of a simulated gastric fluid (BL, n = 14), simulated gastric fluid containing the dietary supplement G's Formula (DF, n = 12), or an equal volume of phosphate buffered saline (CO, n = 14). At 48 and 60 h, 10−5 M carbachol was used to stimulate gastrin secretion. Cell viability was assessed at 72 h using calcein and ethidium-homodimer 1 staining. Media was analyzed for gastrin, IL-1β, and NO at 48, 60, and 72 h. There were no effects of treatment or carbachol stimulation on explant cell viability. Carbachol resulted in a significant increase in gastrin concentration in CO and DF treatments, but not in BL. NO was higher in CO than in BL, and NO increased in the CO and DF treatments but not in BL. In conclusion, the addition of carbachol and gastric digests to culture media did not impact cell viability. The use of an acidic gastric digest (BL) reduced the effect of cholinergic stimulation with carbachol at a concentration of 10−5 M and reduced NO secretion. The addition of the dietary supplement to the gastric digest (DF) appeared to mediate these effects within this model. Further research is required to evaluate the specific effects of this dietary supplement on direct markers of mucosal activity and the functional relevance of these results in vivo.

scholarly journals Cytotoxicity and Epidermal Barrier Function Evaluation of Common Antiseptics for Clinical Use in an Artificial Autologous Skin Model

2021 ◽  
Vol 10 (4) ◽  
pp. 642
Author(s):  
María I. Quiñones-Vico ◽  
Ana Fernández-González ◽  
Elena Pérez-Castejón ◽  
Trinidad Montero-Vílchez ◽  
Salvador Arias-Santiago
Keyword(s):  
Cell Viability ◽  
Barrier Function ◽  
Structural Integrity ◽  
Dermal Fibroblasts ◽  
Histological Evaluation ◽  
Suitable Model ◽  
Chlorhexidine Digluconate ◽  
Epidermal Barrier ◽  
Antiseptic Treatment ◽  
The Impact

Bioengineered artificial skin substitutes (BASS) are the main treatment used in addition to autografts when skin injuries involve a large body surface area. Antiseptic/antibiotic treatment is necessary to prevent infections in the BASS implant area. This study aims to evaluate the effect of antiseptics and antibiotics on cell viability, structural integrity, and epidermal barrier function in BASS based on hyaluronic acid during a 28 day follow-up period. Keratinocytes (KTs) and dermal fibroblasts (DFs) were isolated from skin samples and used to establish BASS. The following antibiotic/antiseptic treatment was applied every 48 h: colistin (1%), chlorhexidine digluconate (1%), sodium chloride (0.02%), and polyhexanide (0.1%). Cell viability (LIVE/DEAD® assay), structural integrity (histological evaluation), and epidermal barrier function (trans-epidermal water loss, (TEWL), Tewameter®) were also evaluated. Cell viability percentage of BASS treated with chlorhexidine digluconate was significantly lower (p ≤ 0.001) than the other antiseptics at day 28. Compared to other treatments, chlorhexidine digluconate and polyhexanide significantly affected the epithelium. No significant differences were found regarding epidermal barrier. These results may be useful for treatment protocols after implantation of BASS in patients and evaluating them in clinical practice. BASS represent a suitable model to test in vitro the impact of different treatments of other skin wounds.

scholarly journals DEC2 Serves as Potential Tumor Suppressor in Breast Carcinoma

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Wentong Fang ◽  
Qian Li ◽  
Min Wang ◽  
Mingjie Zheng ◽  
Huirong Xu
Keyword(s):  
Tumor Suppressor ◽  
Cell Viability ◽  
Colony Formation ◽  
Expression Profiles ◽  
Mrna Level ◽  
Cancer Cell Line ◽  
Mrna Levels ◽  
Her2 Positive ◽  
Normal Tissues ◽  
The Impact

Background. Identification of new biomarkers can facilitate the development of effective therapeutic strategies in breast cancer (BC). Data from previous studies have revealed that differentiated embryonic chondrocyte gene (DEC) 1 and DEC2 might involve in the progression of various cancer types. We explored the expression profiles and function of DEC1/2 in BC patients in this study. Methods. The mRNA expression of DEC1/2 in BC patients and cell lines were taken from the Oncomine and Cancer Cell Line Encyclopedia database. The prognostic impacts of DEC1/2 were mined from the bc-GenExMiner and Kaplan–Meier plotter database. The impact of DEC1/2 genomic alterations on patient survival was calculated by cBioPortal. DEC2 protein expressions were confirmed by Western blotting (WB) in 10 pairs of BC samples. In addition, DEC2 sgRNA was constructed to confirm its affection on cell viability, invasion, and colony formation. Results. The DEC1 and DEC2 mRNA levels are both lower in BC tissues than normal tissues. DEC1/2 expression was high in progesterone receptor (PR) positive BC patients (P=0.0023), but low in human epidermal growth factor receptor 2 (HER2) positive patients (P<0.0001). Lower DEC2 mRNA level has significant association with more aggressive pathogenic grade (P<0.0001) and worse overall survival (OS) of BC patients (P=5.2×10−6). Subgroup analysis showed that low DEC2 level was correlated with worse OS in estrogen receptor (ER) positive BC (P=0.008). DEC2 (P=0.00029) alteration was significantly correlated with worse OS in BC patients. WB results also confirmed the lower DEC2 protein levels in BC samples than their paired normal tissues. And, DEC2 silencing by sgRNA resulted in a significant increasing in cell viability, invasion, and colony formation. Conclusion. DEC2 might serve as a tumor suppressor, and its disfunction may involve in the tumorigenesis and indicate bad clinical outcomes in BC patients.

scholarly journals In Vitro Cell-Based Biomarkers Study of Vital Organs: Impact of the Biofield Energy Based Test Formulation

2019 ◽  
Vol 1 (2) ◽  
pp. 22-37
Author(s):  
Krista Joanne Callas ◽  
Mahendra Kumar Trivedi ◽  
Alice Branton ◽  
Dahryn Trivedi ◽  
Gopal Nayak ◽  
...  
Keyword(s):  
Cell Viability ◽  
Hepg2 Cells ◽  
Neuroblastoma Cells ◽  
A549 Cells ◽  
Heart Cells ◽  
Serotonin Level ◽  
Human Neuroblastoma ◽  
Test Formulation ◽  
The Impact

The present study was undertaken to evaluate the impact of Biofield Energy Treated test formulation using multiple cell-lines. The test formulation and cell media (Med) was divided into two parts; one part was untreated (UT) and other part received Biofield Energy Treatment remotely by a renowned Biofield Energy Healer, Krista Joanne Callas, USA and labeled as Biofield Energy Treated (BT) test item (TI)/Med. Based on cell viability, test formulation was found safe. Cytoprotective action of test formulation showed significant restoration of cell viability by 89.9% and 106.4% in human cardiac fibroblasts cells (HCF) cells, while improved restoration of cell viability by 77.3% and 69% in HepG2 cells compared to untreated. Cellular restoration in A549 cells was also improved by 141.2% and 157.1% compared to untreated. ALP activity was significantly increased by 118.7% and 140.7% in UT-Med + BT-TI and BT-Med + UT-TI, respectively at 0.1 µg/mL than untreated. Percent cellular protection of HCF (heart) cells (decreased of LDH activity) was significantly increased by 89.9% and 106.4% in UT-Med + BT-TI and BT-Med + BT-TI, respectively than untreated. HepG2 cells protection (decreased ALT activity) was increased by 59.8% in BT-Med + BT-TI than untreated. Superoxide dismutase (SOD) level was increased by 22.8% in BT-Med + BT-TI than untreated. Serotonin level was significantly increased by 361.7% and 197.6% in BT-Med + UT-TI and BT-Med + BT-TI, respectively than untreated in human neuroblastoma cells (SH-SY5Y). However, relative quantification (RQ) of vitamin D receptor (VDR) was significantly increased by 116.5%, 214.7%, and 241.5% in UT-Med + BT-TI, BT-Med + UT-TI, and BT-Med + BT-TI, respectively than untreated in MG-63 cells. Overall, data showed a significant improvement of organ-specific functional enzyme biomarkers. Thus, Biofield Energy Treated Test formulation (the Trivedi Effect®) would be useful for multiple organs health that can be beneficial against coronary artery disease, arrhythmias, congenital heart disease, cardiomyopathy, cirrhosis, liver cancer, hemochromatosis, asthma, chronic bronchitis, cystic fibrosis, osteoporosis, etc.

The Impact of Acupuncture Treatment on Nitric Oxide (NO) in Migraine Patients

2014 ◽  
Vol 39 (3) ◽  
pp. 275-283 ◽  
Author(s):  
Yasemin Gündüztepe ◽  
Setenay Mit ◽  
Ersel Geçioglu ◽  
Neslihan Gurbuz ◽  
Osman Salkacı ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Acupuncture Treatment ◽  
The Impact

VDAC1 Mediated Anticancer Activity of Gallic Acid in Human Lung Adenocarcinoma A549 Cells

2018 ◽  
Vol 18 (2) ◽  
pp. 255-262 ◽  
Author(s):  
Aikebaier Maimaiti ◽  
Amier Aili ◽  
Hureshitanmu Kuerban ◽  
Xuejun Li
Keyword(s):  
Western Blot ◽  
Cell Viability ◽  
Gallic Acid ◽  
Molecular Mechanisms ◽  
A549 Cells ◽  
Dependent Manner ◽  
Lung Carcinoma Cells ◽  
Induced Apoptosis ◽  
The Impact

Aims: Gallic acid (GA) is generally distributed in a variety of plants and foods, and possesses cell growth-inhibiting activities in cancer cell lines. In the present study, the impact of GA on cell viability, apoptosis induction and possible molecular mechanisms in cultured A549 lung carcinoma cells was investigated. Methods: In vitro experiments showed that treating A549 cells with various concentrations of GA inhibited cell viability and induced apoptosis in a dose-dependent manner. In order to understand the mechanism by which GA inhibits cell viability, comparative proteomic analysis was applied. The changed proteins were identified by Western blot and siRNA methods. Results: Two-dimensional electrophoresis revealed changes that occurred to the cells when treated with or without GA. Four up-regulated protein spots were clearly identified as malate dehydrogenase (MDH), voltagedependent, anion-selective channel protein 1(VDAC1), calreticulin (CRT) and brain acid soluble protein 1(BASP1). VDAC1 in A549 cells was reconfirmed by western blot. Transfection with VDAC1 siRNA significantly increased cell viability after the treatment of GA. Further investigation showed that GA down regulated PI3K/Akt signaling pathways. These data strongly suggest that up-regulation of VDAC1 by GA may play an important role in GA-induced, inhibitory effects on A549 cell viability.

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