Metabolism Reactivation in Erythrocytes Cryopreserved with Polyethylene Glycol: Protein State and Reactive Oxygen Species Production

نویسندگان

چکیده

Production of reactive oxygen species (ROS) and protein state membrane-cytoskeleton complex (MCC) in the erythrocytes, subjected to freeze-thawing with polyethylene glycol (PEG) subsequently transferred into physiological conditions vitro after cryoprotective agent removal were examined. Results SDS-PAGE β-mercaptoethanol showed a decrease spectrin content MCC profile cryopreserved erythrocytes. The using diamide revealed an increase accessibility –SH groups for reagent enhanced level high molecular weight polypeptide complexes relative control. A band 8 (peroxiredoxin) erythrocytes by is apparently associated change its localization caused increased ROS production at previous stages cryopreservation. At same time, absence significant changes control upon metabolism reactivation indicated ability cells oxidative processes during short-term incubation.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Adipocyte Reactive Oxygen Species Production

SUN, XIAOCUN AND MICHAEL B. ZEMEL. 1 ,25Dihydroxyvitamin D3 modulation of adipocyte reactive oxygen species production. Obesity. 2007;15:1944–1953. Objective: We have previously shown 1 ,25-dihydroxyvitamin D3 [1 ,25-(OH)2D3] to inhibit mitochondrial uncoupling protein 2 (UCP2) expression in adipocytes and that in vivo suppression of calcitriol levels with calcium-rich diets increases UCP2 expr...

متن کامل

O 22: Reactive Oxygen Species and Epilepsy

Seizure activity has been proposed to result in the generation of reactive oxygen species (ROS), which then contribute to seizure-induced neuronal damage and eventually cell death. Although the mechanisms of seizure-induced ROS generation are unclear, mitochondria and cellular calcium overload have been proposed to have a crucial role. We aim to determine the sources of seizure-induced ROS and ...

متن کامل

Determination of Reactive Oxygen Species in Isolated Erythrocytes

Determination of reactive oxygen species (ROS) in erythrocytes have been extensively studied due to its important pathophysiological role in many diseases. Also, studies on the potential of many antioxidants compounds are important to improve human healthy. This paper describes a simple and fast method to quantify ROS in erythrocytes with induction of oxidation and antioxidant protection. Tert-...

متن کامل

Purification and characterization of polyethylene glycol dehydrogenase involved in the bacterial metabolism of polyethylene glycol.

Polyethylene glycol (PEG) dehydrogenase in crude extracts of a PEG 20,000-utilizing mixed culture was purified 24 times by precipitation with ammonium sulfate, solubilization with laurylbetaine, and chromatography with diethylamino-ethyl-cellulose, hydroxylapatite, and Sephadex G-200. The purified enzyme was confirmed to be homogeneous by sodium dodecyl sulfate-polyacrylamide gel electrophoresi...

متن کامل

Mitochondrial metabolism of reactive oxygen species.

For a long time mitochondria have mainly been considered for their role in the aerobic energy production in eukaryotic cells, being the sites of the oxidative phosphorylation, which couples the electron transfer from respiratory substrates to oxygen with the ATP synthesis. Subsequently, it was showed that electron transfer along mitochondrial respiratory chain also leads to the formation of rad...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Problems of Cryobiology and Cryomedicine

سال: 2022

ISSN: ['2307-6143', '2518-7376']

DOI: https://doi.org/10.15407/cryo32.02.092