scholarly journals Anti-glycation and anti-oxidative effects of a phenolic-enriched maple syrup extract and its protective effects on normal human colon cells

2017 ◽  
Vol 8 (2) ◽  
pp. 757-766 ◽  
Author(s):  
Weixi Liu ◽  
Zhengxi Wei ◽  
Hang Ma ◽  
Ang Cai ◽  
Yongqiang Liu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Human Colon ◽  
Protective Effects ◽  
Colon Cells ◽  
Maple Syrup ◽  
Normal Human ◽  
Oxidative Effects

Phenolic-enriched maple syrup extract (MSX) inhibits the formation of AGEs and protects normal/non-tumorigenic human colon cells from oxidative stress.

The influence of extracts from Potentilla species on normal human colon cells

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
R Paduch ◽  
M Tomczyk ◽  
A Wiater ◽  
M Pleszczynska ◽  
M Kandefer Szerszen ◽  
...  
Keyword(s):  
Human Colon ◽  
Colon Cells ◽  
Normal Human

O XVII B.2 Determination of endogenous DNA damage, oxidated DNA bases and oxidative stress in primary human colon cells and modulation by plant ingredients

1997 ◽  
Vol 379 (1) ◽  
pp. S171
Author(s):  
Beatrice L. Pool-Zobel ◽  
Salomon L. Abrahamse ◽  
Daniela Oberreuther ◽  
Sylvia Treptow-van Lishaut ◽  
Gerhard Rechkemmer
Keyword(s):  
Oxidative Stress ◽  
Dna Damage ◽  
Human Colon ◽  
Dna Bases ◽  
Colon Cells ◽  
And Oxidative Stress

scholarly journals Vitamin C − protective role in oxidative stress conditions induced in human normal colon cells by label free Raman spectroscopy and imaging

2021 ◽  
Author(s):  
Karolina Beton ◽  
Beata Brozek-Pluska
Keyword(s):  
Oxidative Stress ◽  
Raman Spectroscopy ◽  
Vitamin C ◽  
Human Colon ◽  
Protective Role ◽  
Spectroscopic Methods ◽  
Label Free ◽  
Normal Cells ◽  
Colon Cells ◽  
Cancerous Cells

Colorectal cancer is the second most frequently diagnosed cancer worldwide. Conventional diagnostics methods of colorectal cancer, can detect it in advanced stage. Spectroscopic methods, including Raman spectroscopy and imaging, are becoming more and more popular in medical applications, and allow fast, precise and unambiguous differentiation of healthy and cancerous samples. the most important advantage of Raman spectroscopy is ability to identify biomarkers that help in differentiation of healthy and cancerous cells based on biochemistry of sample and spectra typical for: lipids, proteins, DNA. The aim of the study was to evaluate the biochemical and structural features of human colon cell lines based on Raman spectroscopy and imaging: normal cells CCD-18 Co, normal cells CCD-18 Co under oxidative stress conditions, normal cells CCD-18 Co at first treated by using tert-Butyl hydroperoxide and then supplemented by vitamin C in high concentration to show the protective role of vitamin C in micromolar concentrations against ROS by spectroscopic methods. Raman data obtained for normal cells injured by ROS were compared with spectra typical for cancerous cells. Statistically assisted analysis has shown that normal, ROS injured and cancerous human colon cells can be distinguished based on their unique vibrational properties. The research carried out proves that label-free Raman spectroscopy may play an important role in clinical diagnostics differentiation of normal and cancerous colon cells and may be a source of intraoperative information supporting histopathological analysis.

scholarly journals Zinc Phthalocyanine Photochemistry by Raman Imaging, Fluorescence Spectroscopy and Femtosecond Spectroscopy in Normal and Cancerous Human Colon Tissues and Single Cells

Molecules ◽  
2020 ◽  
Vol 25 (11) ◽  
pp. 2688 ◽  
Author(s):  
Beata Brozek-Pluska ◽  
Arkadiusz Jarota ◽  
Rafal Kania ◽  
Halina Abramczyk
Keyword(s):  
Single Cells ◽  
Blue Shift ◽  
Human Colon ◽  
Raman Imaging ◽  
Zinc Phthalocyanine ◽  
Label Free ◽  
Colon Tissue ◽  
Tissue Samples ◽  
Colon Cells ◽  
Normal Human

Photodynamic therapy is a clinically approved alternative method for cancer treatment in which a combination of nontoxic drugs known as photosensitizers and oxygen is used. Despite intensive investigations and encouraging results, zinc phthalocyanines (ZnPcs) have not yet been approved as photosensitizers for clinical use. Label-free Raman imaging of nonfixed and unstained normal and cancerous colon human tissues and normal human CCD18-Co and cancerous CaCo-2 cell lines, without and after adding ZnPcS4 photosensitizer, was analyzed. The biochemical composition of normal and cancerous colon tissues and colon cells without and after adding ZnPcS4 at the subcellular level was determined. Analyzing the fluorescence/Raman signals of ZnPcS4, we found that in normal human colon tissue samples, in contrast to cancerous ones, there is a lower affinity to ZnPcS4 phthalocyanine. Moreover, a higher concentration in cancerous tissue was concomitant with a blue shift of the maximum peak position specific for the photosensitizer from 691–695 nm to 689 nm. Simultaneously for both types of samples, the signal was observed in the monomer region, confirming the excellent properties of ZnPcS4 for photo therapy (PDT). For colon cell experiments with a lower concentration of ZnPcS4 photosensitizer, c = 1 × 10−6 M, the phthalocyanine was localized in mitochondria/lipid structures; for a higher concentration, c = 9 × 10−6 M, localization inside the nucleus was predominant. Based on time-resolved experiments, we found that ZnPcS4 in the presence of biological interfaces features longer excited-state lifetime photosensitizers compared to the aqueous solution and bare ZnPcS4 film on CaF2 substrate, which is beneficial for application in PDT.

scholarly journals Oxidative stress induced by tBHP in human normal colon cells by label free Raman spectroscopy and imaging: The protective role of natural antioxidants in the form of β-carotene

2021 ◽  
Author(s):  
B. Brozek-Pluska ◽  
K. Beton
Keyword(s):  
Oxidative Stress ◽  
Human Colon ◽  
Protective Role ◽  
Control Group ◽  
Label Free ◽  
Normal Colon ◽  
Stress Injury ◽  
Colon Cells ◽  
Β Carotene

AbstractThe present study aimed to investigate the protective effect of β-carotene on the oxidative stress injury of human normal colon cell line CCD-18Co triggered by tert-Butyl hydroperoxide (tBHP). XTT examination was used to determine cell viability after β-carotene supplementation and to determine the optimal concentration of antioxidant in spectroscopic studies. Cell biochemistry for CCD-18Co control group, after tBHP adding and for cells in β-carotene - tBHP model was studied by using label-free Raman microspectroscopy. Results for stress treated CCD-18Co human colon normal cells and human colon cancer cells Caco-2 based on vibration features were also compared. Pretreatment with β-carotene alleviated damages in CCD-18Co human normal colon cells induced by tBHP and showed the preventative effect on cells apoptosis. Treatment with β-carotene altered the level of ROS investigated based on intensities of Raman peaks typical for lipids, proteins and nucleic acids. Presented study confirmed the antioxidant, protective role of β-carotene against ROS by using spectroscopic label-free Raman techniques.

scholarly journals Possible Protective Effects of TA on the Cancerous Effect of Mesotrione

Nutrients ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1343 ◽  
Author(s):  
Agata Jabłońska-Trypuć ◽  
Urszula Wydro ◽  
Elżbieta Wołejko ◽  
Joanna Rodziewicz ◽  
Andrzej Butarewicz
Keyword(s):  
Oxidative Stress ◽  
Cancer Cells ◽  
Human Fibroblasts ◽  
Protective Effects ◽  
Food Contaminants ◽  
Potential Threat ◽  
Food Ingredients ◽  
Traumatic Acid ◽  
Cytotoxicity Studies ◽  
Oxidative Effects

The interaction of different food ingredients is now a very important and often emerging topic of research. Pesticides and their breakdown products, which may be carcinogenic, are one of the frequently occurring food contaminants. Compounds like traumatic acid (TA), which originates from plants, are beneficial, antioxidant, and anticancer food ingredients. Previously obtained results from our research group indicated antioxidative in normal human fibroblasts and prooxidative in cancer cells activity of TA. Since the literature data show an undoubted connection between the presence of pesticides in food and the increased incidence of different types of cancers, we attempted to clarify whether TA can abolish the effect of mesotrione stimulating the growth of cancer cells. In order to study the influence of mesotrione on breast cancer cells, we decided to carry out cytotoxicity studies of environmentally significant herbicide concentrations. We also analyzed the cytotoxicity of TA and mixtures of these two compounds. After selecting the most effective concentrations of both components tested, we conducted analyses of oxidative stress parameters and apoptosis in ZR-75-1 cells. The obtained results allow us to conclude that traumatic acid by stimulating oxidative stress and apoptosis contributes to inhibiting the growth and development of cells of the ZR-75-1 line strengthened by mesotrione. This may mean that TA is a compound with pro-oxidative and proapoptotic effects in cancer cells whose development and proliferation are stimulated by the presence of mesotrione. The presented results may be helpful in answering the question of whether herbicides and their residues in edibles may constitute potential threat for people diagnosed with cancer and whether compounds with proven pro-oxidative effects on cancer cells can have potential cytoprotective functions.

Gastrointestinal digested Sambucus nigra L. fruit extract protects in vitro cultured human colon cells against oxidative stress

2016 ◽  
Vol 197 ◽  
pp. 648-657 ◽  
Author(s):  
Anna Olejnik ◽  
Mariola Olkowicz ◽  
Katarzyna Kowalska ◽  
Joanna Rychlik ◽  
Radosław Dembczyński ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Human Colon ◽  
Sambucus Nigra ◽  
Fruit Extract ◽  
Colon Cells
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