Participation of non-neuronal muscarinic receptors in the effect of carbachol with paclitaxel on human breast adenocarcinoma cells. Roles of nitric oxide synthase and arginase

2015 ◽  
Vol 29 (1) ◽  
pp. 87-92 ◽  
Author(s):  
Alejandro Javier Español ◽  
Agustina Salem ◽  
Daniela Rojo ◽  
María Elena Sales
Keyword(s):  
Nitric Oxide ◽  
Nitric Oxide Synthase ◽  
Muscarinic Receptors ◽  
Breast Adenocarcinoma ◽  
Human Breast ◽  
Human Breast Adenocarcinoma ◽  
Adenocarcinoma Cells ◽  
Oxide Synthase

scholarly journals Change in the Expression of BAK، FAS، BAX، TNF-A، BCL-2 and Survivin Apoptosis Genes of the Human Breast Adenocarcinoma Cells (MCF-7) by Staphylococcal Enterotoxin B

2019 ◽  
Author(s):  
Sara Afzali ◽  
Abbas Doosti ◽  
Mansour Heidari ◽  
Nahid Babaei ◽  
Parvaneh Keshavarz
Keyword(s):  
Staphylococcal Enterotoxin ◽  
Breast Adenocarcinoma ◽  
Control Group ◽  
Staphylococcal Enterotoxin B ◽  
Type B ◽  
Human Breast ◽  
Human Breast Adenocarcinoma ◽  
Adenocarcinoma Cells ◽  
Enterotoxin B ◽  
Mcf 7

Introduction: Breast cancer is one of the most prevalent malignancies among women. Patients whose suffering from this condition, as a result of the use of conventional therapies often have a poor response to treatment and the relapse among them is frequent. In this study, the effects of staphylococcal enterotoxin type B on BAK، FAS، BAX، TNF-a، BCL-2 و Survivin genes expression in human breast adenocarcinoma cells (MCF-7) was examined. Staphylococcal enterotoxin B is a powerful member of the Staphylococcus aureus toxins family, which is known as an anticancer agent with potential for killing cancer cells. Methods: The experimental study was carried out at the Biotechnology Research Center of Islamic Azad University, Shahrekord Branch. By using Lipofectamine 2000 reagent, MCF-7  cells transfected with the pcDNA3.1(+)-seb (recombinant) and  pcDNA3.1(+) (non-recombinant)  plasmids and were selected by culturing in a selective medium of RPMI- 1640 containing 600 μg / mL antibiotic G418. Then, the expression of BAK, FAS, BAX, TNF-a, BCL-2, and Survivin genes in transfected cells were analyzed by real time PCR. Student's t-test, SPSS Inc., Chicago, IL; Version 16 and also Excel program for statistical analysis were used. Results: The results of this study indicated that staphylococcal enterotoxin type B (SEB) remarkably changes the expression of apoptotic related genes in MCF-7 cell line. It was observed a significant increase in the expression of BAK, FAS, BAX, and TNF-a genes, the expression of BCL-2 and Survivin genes significantly decreased compared to the control group (P=0/032). Conclusion: Staphylococcal enterotoxin type B has an inhibitory effect on the growth, proliferation and invasion of breast adenocarcinoma cells through altering the expression of the genes involved in the apoptosis process. Therefore, it seems that there is a good research field for the use of this toxin in the control and treatment of human breast adenocarcinoma.

Ultrastructural Assessment of 2-(acridin-9-ylmethylene)-N-phenylhydrazinecarbothioamide activity on human breast adenocarcinoma cells

Micron ◽  
2016 ◽  
Vol 90 ◽  
pp. 114-122 ◽  
Author(s):  
Sinara Mônica Vitalino de Almeida ◽  
Lúcia Patrícia Bezerra Gomes da Silva ◽  
Luiza Rayanna Amorim de Lima ◽  
Giovanna Barbarini Longato ◽  
Rafael José Ribeiro Padilha ◽  
...  
Keyword(s):  
Breast Adenocarcinoma ◽  
Human Breast ◽  
Human Breast Adenocarcinoma ◽  
Adenocarcinoma Cells

scholarly journals Enteric descending and afferent neural signaling stimulated by giant migrating contractions: essential contributing factors to visceral pain

2007 ◽  
Vol 292 (2) ◽  
pp. G572-G581 ◽  
Author(s):  
Sushil K. Sarna
Keyword(s):  
Nitric Oxide ◽  
Heart Rate ◽  
Nitric Oxide Synthase ◽  
Muscarinic Receptors ◽  
Visceral Pain ◽  
Intestinal Segment ◽  
Descending Inhibition ◽  
Oxide Synthase ◽  
Stimulation Of ◽  
Giant Migrating Contractions

We investigated whether strong compression of an intestinal segment by giant migrating contractions (GMCs) initiates pseudoaffective signals from the gut, similar to those initiated by its distension with a balloon. The experiments were performed on conscious dogs by using close intra-arterial infusions of test substances that affect the receptors only in the infused segment. The stimulation of GMCs by close intra-arterial infusion of CGRP or distension of an intestinal segment by balloon increased the heart rate; the increase in heart rate was greater when the balloon distension and GMCs occurred concurrently in separate intestinal segments. The suppression of contractility in the distended segment blocked the increase in heart rate. By contrast, the stimulation of rhythmic phasic contractions (RPCs) or their spontaneous occurrence did not increase the heart rate. The occurrence of GMCs as well as intestinal distension also produced descending inhibition. The descending inhibition was blocked by the inhibition of nitric oxide synthase, but it was unaffected by the inhibition of adenylyl cyclase, purinergic receptors P2X and P2Y, and muscarinic receptors M1 and M2. The synaptic transmission for descending inhibition was mediated primarily by nicotinic receptors and activation of nitric oxide synthase. It was unaffected by the inhibition of tachykinin receptors NK1, NK2, and NK3; serotonin receptors 5-HT1A, 5-HT2/5-HT1C, 5-HT3, and 5-HT4; and muscarinic receptors. Our findings show that GMCs, but not RPCs, initiate pseudoaffective signals from the gut. In the presence of visceral hypersensitivity or impaired descending inhibition, the GMCs may become a noxious stimulus.

Uranium Stimulates Estrogen-Responsive Gene Expression in Stably Transfected T47D Human Breast Adenocarcinoma Cells.

2008 ◽  
Vol 78 (Suppl_1) ◽  
pp. 96-96
Author(s):  
Michael J. Hendrix ◽  
Kevin D. Sullivan ◽  
Jeff W. Henrikson ◽  
Samantha K. Kemper ◽  
Stefanie Raymond-Whish ◽  
...  
Keyword(s):  
Gene Expression ◽  
Breast Adenocarcinoma ◽  
Human Breast ◽  
Human Breast Adenocarcinoma ◽  
Adenocarcinoma Cells ◽  
Estrogen Responsive Gene ◽  
Responsive Gene
Sign in / Sign up

Export Citation Format

Share Document