Among royal jelly’s (RJ) various biological activities, its possible antitumour activity deserves particular attention. The purpose of this study was to investigate the influence of RJ, its bioactive ...component 10-hydroxy-2-decenoic acid (10- HDA), and human interferon-alpha (HuIFN-αN3) on the proliferation of human colorectal adenocarcinoma cells (CaCo- 2), and ascertain their effect on intracellular glutathione (GSH) level and lipid peroxidation. We studied the antiproliferative (AP) activity of RJ (0.1 g/10 mL phosphate buffer saline (PBS), HuIFN-αN3 (1000 I.U. mL-1), 10-HDA at 100.0 μmol L-1, and their different combinations, in the ratio 1:1, 1:2, and 2:1 on CaCo-2 cells. The GSH level was measured by glutathione assay. The lipid peroxidation was measured by malondialdehyde (MDA) assay. Single RJ had a low AP activity: 2.0 (0.5 mg mL-1). HuIFN-αN3 had an AP activity of 2.5 (208.33 I.U. mL-1), while 10-HDA had an AP activity of 1.5 (37.5 μmol mL-1). The highest AP activity of 3.8 was obtained when RJ and HuIFN-αN3 were applied at the ratio 2:1. In that combination the level of GSH was 24.9±2.4 nmol g-3 of proteins (vs. 70.2±3.2 nmol g-3 in the control) and the level of MDA was 72.3±3.1 nmol g-3 (vs. 23.6±9.1 nmol g-3 in the control). It is generally assumed that 10-HDA, an important constituent of RJ, together with HuIFN-αN3, is responsible for the inhibition of CaCo-2 cells proliferation in vitro. In our study, however, RJ and HuIFN-αN3 applied at 2:1 decreased the level of GSH the most and significantly increased lipid peroxidation via MDA in CaCo-2 cells. Future studies should show whether these GSH- and MDA-related activities of RJ, HuIFN-αN3, 10-HDA, and their combinations may decrease the tumorigenicity index and tumorigenic potential of various tumour cells in vitro.
Kot del biološke aktivnosti MM (Matičnega mlečka) so avtorji preučevali njegovo protitumorsko delovanje kot tudi možno interakcijo s humanim interferonom alfa (HuIFN-αN3). Cilj opravljenih poskusov je bil preučiti vpliv kombinacije med MM in HuIFN-αN3 na proliferacijo celic Humanega kolorektalnega adenokarcinoma (CaCo-2) in njun vpliv na znotrajcelični nivo glutationa (GSH) in peroksidacijo lipidov. Avtorji so preučevali AP (Antiproliferativno) delovanje MM (0.1 g/10 mL fosfatnega pufra) (PBS), HuIFN-αN3, (1000 I.U. mL-1), 10-hidroxy-2-decenoične kisline (10-HDA) (100.0 μmol L-1) in različne kombinacije med njimi (1:1, 1:2 in 2:1) na celice CaCo-2 in vitro. Njihov vpliv na znotrajcelični nivo GSH so merili s pomočjo komercialnega kita. Peroksidacijo lipidov so merili s pomočjo meritve vrednosti malondialdehida (MDA). MM sam kaže AP aktivnost 2.0 (0.5 mg mL-1 ). HuIFN-αN3 ima AP aktivnost 2.5 (208.33 I.U. mL-1) medtem ko ima 10-HDA AP aktivnost 1.5 (37.5 μmol mL-1). AP aktivnost kombinacije MM:HuIFN-αN3 (2:1) je bila 3.8. Pri tej kombinaciji je bil viden vpliv na nivo GSH: 24.9±2.4 nmol g-3 proteinov (70.2±3.2 nmol g-3 pri kontroli). Nivo MDA je bil 72.3±3.1 nmol g-3 pri kontroli). 10-HDA je glavna sestavina MM, ki v kombinaciji s HuIFN-αN3 deluje antiproliferativno na CaCo-2 celice. MM in HuIFN-αN3 v kombinaciji 2:1 pospešujeta peroksidacijo lipidov (MDA) in zmanjšujeta nivo glutationa (GSH). Nadaljni poskusi bodo pokazali ali z GSH- in MDA- povezane aktivnosti MM, HuIFN-αN3, 10-HDA in kombinacij med njimi, zmanjšujejo indeks tumorigenosti in s tem tumorigeni potencijal različnih tumorskih celic in vitro.
Gene expression analysis by quantitative reverse transcription polymerase chain reaction (RT-qPCR) allows accurate and sensitive measurment of gene expression levels. However, a series of steps needs ...to be taken to ensure the relevance, accuracy, correct interpretation and repeatability of the RT-qPCR experiment. We describe here a simple experiment of determining relative gene expression for caspase 8 gene in chicken chondrocytes treated with an apoptosis inducing compound 5-fluorouracil. We use this example to point out some important guidelines in setting up a gene expression study in tissue cells, analyzing and interpreting the results and reporting on the findings.
Analiza izražanja genov z metodo reverznega pomnoževanja in kvantitativne verižne reakcije s polimerazo v realnem času (RT-qPCR) omogoča natančno in občutljivo določanje nivoja izražanja tarčnih genov. Vendar je za zagotavljanje točnosti, natančne interpretacije in ponovljivosti eksperimenta, predvsem pa relevantnosti rezultatov, pomembno natančno poznavanje korakov postopka. V tem prispevku opisujemo enostaven poskus, v katerem smo v celični liniji kokošjih hondrocitov, ki smo jih tretirali s spojino 5-fluorouracil, ki sproži apoptozo, določili relativno izražanje gena, ki kodira encim kaspazo 8. Ta primer smo uporabili za izpostavitev nekaterih pomembnih smernic pri oblikovanju študije izražanja genov v tkivnih celicah, analizi in interpretaciji rezultatov ter oblikovanju zaključkov.
Cancer is the leading cause of death in most countries and its consequences result in huge economic, social and psychological burden. Breast cancer is the most frequently diagnosed cancer type and ...the leading cause of cancer death among females. In this book, we discussed characteristics of breast cancer cell, role of microenvironment, stem cells and metastasis for this deadly cancer. We hope that this book will contribute to the development of novel diagnostic as well as therapeutic approaches.
Aneuploidy means any karyotype that is not euploid, anything that stands outside the norm. Two particular characteristics make the research of aneuploidy challenging. First, it is often hard to ...distinguish what is a cause and what is a consequence. Secondly, aneuploidy is often associated with a persistent defect in maintenance of genome stability. Thus, working with aneuploid, unstable cells means analyzing an ever changing creature and capturing the features that persist. In the book Aneuploidy in Health and Disease we summarize the recent advances in understanding the causes and consequences of aneuploidy and its link to human pathologies.
This authoritative book gathers together a broad range of ideas and topics that define the field. It provides clear, concise, and comprehensive coverage of all aspects of cellular physiology from ...fundamental concepts to more advanced topics. The 4e contains substantial new material. Most chapters have been thoroughly reworked. The book includes chapters on important topics such as sensory transduction, the physiology of protozoa and bacteria, and synaptic transmission.
Authored by leading researchers in the field Clear, concise, and comprehensive coverage of all aspects of cellular physiology, from fundamental concepts to more advanced topics Full color illustrations
Monastirile dobrogene descrise de Arhimandritul Roman Sorescu, starițul Monastirei Cocoș-Saun din județul Tulcea
1914
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Provider: - Institution: - Data provided by Europeana Collections- Antetul: Nifon, Episcopul Dunării de Jos - prefațator.- Prefața este semnată de Nifon, Episcopul Dunării de Jos, datată Galați, 22 ...martie 1914 (p. III-V). Arhimandritul Roman Sorescu (1876-?) a fost hirotonit pe seama mănăstirii Ciolanu, apoi a fost transferat la Episcopia din Buzău, la Mănăstirea Sinaia și ulterior a trecut în Eparhia Dunării de Jos (portret, p. 48). Autorul aduce în monografie și o serie de documente. Planșele adăugate lucrării reprezintă: planul general al construcțiilor mănăstirii Cocoș; planul vetrei mănăstirii Cocoș; planul general al mănăstirii Celic-Dere; planul mănăstirii Celic-Dere din 1910; planul vetrei schitului Saon.- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
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