Effects of combinations of amino acids on cell proliferation in tissue culture of old rats

2013 ◽  
Vol 3 (1) ◽  
pp. 77-79 ◽  
Author(s):  
N. I. Chalisova ◽  
E. A. Kontsevaya ◽  
A. N. Zhekalov ◽  
D. A. Sinyachkin
Keyword(s):  
Amino Acids ◽  
Cell Proliferation ◽  
Tissue Culture ◽  
Old Rats

PROTECTIVE EFFECT OF POLYPEPTIDE AND AMINO ACIDS ON THE DEVELOPMENT OF THE NERVOUS TISSUE CULTURE IN THE PRESENCE OF CYCLOPHOSPHAMIDE

2017 ◽  
pp. 22-26
Author(s):  
V. B. Dolgo-Saburov ◽  
N. I. Chalisova ◽  
L. V. Lyanginen ◽  
E. S. Zalomaeva
Keyword(s):  
Amino Acids ◽  
Cell Proliferation ◽  
Tissue Culture ◽  
Protective Effect ◽  
Organotypic Culture ◽  
Inhibitory Effect ◽  
Mustard Gas ◽  
Synthesis Inhibitor ◽  
Combined Administration ◽  
The Central Nervous System

In an organotypic culture, an investigation was conducted into combined effects of cyclophosphamide DNA as synthesis inhibitor used to model a resorptive action of mustard gas, and cortexin polypeptide or each of 20 encoded amino acids on the development of cell proliferation in cerebral cortex explants of the rat. The combined administration of cyclophosphamide together with cortexin or with each of the 20 encoded amino acids, except glycine, showed suppression of the cytostatic agent inhibitory effect. Thus, cortexin and amino acids have a protective effect on cell proliferation in the tissue culture of the central nervous system under the action of mustardlike substances.

Mechanisms of cellular proliferation stimulation under the effect of L-amino acids in the tissue culture of young and old rats

2014 ◽  
Vol 4 (1) ◽  
pp. 28-36
Author(s):  
A. Yu. Soloviev ◽  
N. I. Chalisova ◽  
I. A. Chernova ◽  
L. K. Shataeva ◽  
D. A. Sinyachkin
Keyword(s):  
Amino Acids ◽  
Tissue Culture ◽  
Cellular Proliferation ◽  
Old Rats

Effect of Tryptophan and Kynurenine on Cell Proliferation in Tissue Culture of the Cerebral Cortex in Young and Old Rats

2019 ◽  
Vol 9 (2) ◽  
pp. 186-189 ◽  
Author(s):  
N. I. Chalisova ◽  
P. N. Ivanova ◽  
E. S. Zalomaeva ◽  
E. A. Nikitina ◽  
L. S. Kozina
Keyword(s):  
Cell Proliferation ◽  
Tissue Culture ◽  
Cerebral Cortex ◽  
Old Rats

Stimulating Effect of the Water-Soluble Fraction from Brown Algae Fucus vesiculosus Extract on Cell Proliferation in the Tissue Culture of Young and Old Rats

2020 ◽  
Vol 10 (3) ◽  
pp. 282-286
Author(s):  
N. I. Chalisova ◽  
G. A. Rizhak ◽  
M. A. Zayitseva ◽  
M. L. Alexandrova ◽  
A. A. Krasnova ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Tissue Culture ◽  
Brown Algae ◽  
Soluble Fraction ◽  
Fucus Vesiculosus ◽  
Water Soluble ◽  
Water Soluble Fraction ◽  
Old Rats

Protective influence of coded amino acids on the development of liver tissue culture in the presence of cytostatic

2020 ◽  
pp. 48-53
Author(s):  
N. I. Chalisova ◽  
V. K. Kozlov ◽  
A. B. Mulik ◽  
E. P. Zatsepin ◽  
T. A. Kostrova
Keyword(s):  
Amino Acids ◽  
Tissue Culture ◽  
Side Effects ◽  
Liver Tissue ◽  
Organotypic Culture ◽  
Growth Zone ◽  
Inhibitory Effect ◽  
Cytostatic Drugs ◽  
Urgent Problem ◽  
Combined Exposure

An urgent problem is the search for substances that can provide a protective effect in cases of DNA synthesis and repair disorders that arise as a result of side effects of cytostatic drugs used in the treatment of cancer. The aim of this work was to study the effect of 20 encoded amino acids in the presence of Cyclophosphane on the development of organotypic culture of rat liver tissue. The results obtained indicate that Cyclophosphane; which simulates the action of such cytostatic substances; inhibits cell proliferation in the liver tissue. It was also found that the encoded amino acids: asparagine; arginine; and glutamic acid; eliminate the inhibitory effect of Cyclophosphane in liver tissue culture. The growth zone of explants after combined exposure to Cyclophosphane (whose isolated action suppressed the growth zone) and these amino acids increased significantly and reached control values. Thus; the experimental data create the basis for the development of methods for the therapeutic use of the three studied amino acids for the removal of side effects in the treatment with cytostatic drugs.

Characterization of YY1 OPB Peptide for its Anticancer Activity

2019 ◽  
Vol 19 (6) ◽  
pp. 504-511 ◽  
Author(s):  
Yige Qi ◽  
Ting Yan ◽  
Lu Chen ◽  
Qiang Zhang ◽  
Weishu Wang ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Amino Acids ◽  
Cell Proliferation ◽  
Cancer Cell ◽  
Breast Cancer Cell ◽  
Expression Vectors ◽  
Cancer Cell Proliferation ◽  
Breast Cancer Cell Proliferation ◽  
Oncogene Products ◽  
And Migration

Background:The oncoprotein binding (OPB) domain of Yin Yang 1 (YY1) consists of 26 amino acids between G201 and S226, and is involved in YY1 interaction with multiple oncogene products, including MDM2, AKT, EZH2 and E1A. Through the OPB domain, YY1 promotes the oncogenic or proliferative regulation of these oncoproteins in cancer cells. We previously demonstrated that a peptide with the OPB sequence blocked YY1-AKT interaction and inhibited breast cancer cell proliferation.Objective:In the current study, we characterized the OPB domain and determined a minimal region for peptide design to suppress cancer cellMethods:Using alanine-scan method, we identified that the amino acids at OPB C-terminal are essential to YY1 binding to AKT. Further studies suggested that serine and threonine residues, but not lysines, in OPB play a key role in YY1-AKT interaction. We generated GFP fusion expression vectors to express OPB peptides with serially deleted N-terminal and found that OPB1 (i.e. G201-S226) is cytoplasmic, but OPB2 (i.e. E206-S226), OPB3 (i.e. E206-S226) and control peptide were both nuclear and cytoplasmic.Results:Both OPB1 and 2 inhibited breast cancer cell proliferation and migration, but OPB3 exhibited similar effects to control. OPB1 and 2 caused cell cycle arrest at G1 phase, increased p53 and p21 expression, and reduced AKT(S473) phosphorylation in MCF-7 cells, but not in MDA-MB-231 cells.Conclusion:: Overall, the serines and threonines of OPB are essential to YY1 binding to oncoproteins, and OPB peptide can be minimized to E206-S226 that maintain inhibitory activity to YY1- promoted cell proliferation.

Branched chain amino acids improve mesenchymal stem cell proliferation, reducing nuclear factor kappa B expression and modulating some inflammatory properties

Nutrition ◽  
2020 ◽  
Vol 78 ◽  
pp. 110935
Author(s):  
Talita Sartori ◽  
Andressa Cristina Antunes Santos ◽  
Renaira Oliveira da Silva ◽  
Gabriela Kodja ◽  
Marcelo Macedo Rogero ◽  
...  
Keyword(s):  
Amino Acids ◽  
Cell Proliferation ◽  
Stem Cell ◽  
Mesenchymal Stem Cell ◽  
Nuclear Factor Kappa B ◽  
Branched Chain Amino Acids ◽  
Nuclear Factor ◽  
Stem Cell Proliferation ◽  
Nuclear Factor Kappa ◽  
Branched Chain

scholarly journals Formaldehyde and De/Methylation in Age-Related Cognitive Impairment

Genes ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 913
Author(s):  
Ting Li ◽  
Yan Wei ◽  
Meihua Qu ◽  
Lixian Mou ◽  
Junye Miao ◽  
...  
Keyword(s):  
Amino Acids ◽  
Cell Proliferation ◽  
Cognitive Impairment ◽  
Metabolic Pathways ◽  
Memory Formation ◽  
Epigenetic Alterations ◽  
Diagnostic Biomarker ◽  
Reactive Substance ◽  
Age Related ◽  
Novel Therapeutic

Formaldehyde (FA) is a highly reactive substance that is ubiquitous in the environment and is usually considered as a pollutant. In the human body, FA is a product of various metabolic pathways and participates in one-carbon cycle, which provides carbon for the synthesis and modification of bio-compounds, such as DNA, RNA, and amino acids. Endogenous FA plays a role in epigenetic regulation, especially in the methylation and demethylation of DNA, histones, and RNA. Recently, epigenetic alterations associated with FA dysmetabolism have been considered as one of the important features in age-related cognitive impairment (ARCI), suggesting the potential of using FA as a diagnostic biomarker of ARCI. Notably, FA plays multifaceted roles, and, at certain concentrations, it promotes cell proliferation, enhances memory formation, and elongates life span, effects that could also be involved in the aetiology of ARCI. Further investigation of and the regulation of the epigenetics landscape may provide new insights about the aetiology of ARCI and provide novel therapeutic targets.

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