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61.
Properties of erythrocyte surface were investigated for patients with ischemic heart disease in the course of treatment with the UV-irradiated blood autotransfusion (UVIBA). Application of methods of light-scattering, photometry and cytochemistry revealed rapid and significant changes in deformability and aggregation properties of the erythrocytes immediately following each UVIBA procedure, which was accompanied by considerable blood viscosity decrease. 相似文献
62.
P S Gromov S F Zakharov S S Shishkin R V Il'inski? 《Biokhimii?a (Moscow, Russia)》1988,53(8):1316-1326
Human erythrocyte membrane proteins were analyzed by a modified two-dimensional electrophoresis performed according to O'Farrell. This method was used to construct a two-dimensional map of human erythrocyte membrane proteins. The map plotted in the coordinates "relative molecular mass versus relative electrophoretic mobility during IEF" was used for the characterization of 189 proteins. The position of major membrane proteins in the map was determined on the basis of their Mr, pI as well as literature data. Carboanhydrase was positioned by coelectrophoresis. A comparative analysis of erythrocyte membrane and cytosol preparations by two-dimensional protein mapping revealed that some of erythrocyte proteins have dual localization. 相似文献
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V P Paponov P S Gromov L I Kovalev E G Shcheglova D M Spitkovski? 《Biulleten' eksperimental'no? biologii i meditsiny》1985,99(1):50-52
Protein with a molecular mass of 53000 daltons undetectable in healthy persons was identified by electrophoresis in peripheral blood leukocytes of patients with Down's syndrome. The protein was completely extracted with 0.4 N HCl from leukocyte homogenates and was found to be identical, as regards electrophoretic mobility, to protein detected in two patients with chronic myeloblastic leukemia. The causes of discrepancy between theoretically expected and electrophoresis-revealed differences in protein composition of normal and trisomal cells. 相似文献
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68.
Loss of expression of the adipocyte-type fatty acid-binding protein (A-FABP) is associated with progression of human urothelial carcinomas 总被引:5,自引:0,他引:5
Ohlsson G Moreira JM Gromov P Sauter G Celis JE 《Molecular & cellular proteomics : MCP》2005,4(4):570-581
Bladder cancer is the fifth most common malignancy in the world and represents the second most common cause of death among genitourinary tumors. Current prognostic parameters such as grade and stage cannot predict with certainty the long-term outcome of bladder cancer, and as a result there is a pressing need to identify markers that may predict tumor behavior. Earlier we identified the adipocyte fatty acid-binding protein (A-FABP), a small-molecular-mass fatty acid-binding protein that functions by facilitating the intracellular diffusion of fatty acids between cellular compartments as a putative marker of progression based on a limited study of fresh bladder urothelial carcinomas (UCs) (Celis, J. E., Ostergaard, M., Basse, B., Celis, A., Lauridsen, J. B., Ratz, G. P., Andersen, I., Hein, B., Wolf, H., Orntoft, T. F., and Rasmussen, H. H. (1996) Loss of adipocyte-type fatty acid binding protein and other protein biomarkers is associated with progression of human bladder transitional cell carcinomas. Cancer Res.56, 4782-4790). Here we have comprehensively examined the protein expression profiles of a much larger sample set consisting of 153 bladder specimens (46 nonmalignant biopsies, 11 pTa G1, 40 pTa G2, 10 pTa G3, 13 pT1 G3, 23 pT2-4 G3, and 10 pT2-4 G4) by gel-based proteomics in combination with immunohistochemistry (IHC) using a peptide-based rabbit polyclonal antibody that reacts specifically with this protein. Proteomic profiling showed a striking down-regulation of A-FABP in invasive lesions, a fact that correlated well with immunohistochemical analysis of the same samples. The IHC results were confirmed by using a tissue microarray (TMA) containing 2,317 samples derived from 1,849 bladder cancer patients. Moreover, we found that the altered expression of A-FABP in invasive UCs is not due to deregulated expression of peroxisome proliferator-activated receptor gamma (PPARgamma), a trans-activator of A-FABP. Taken together, these results provide evidence that deregulation of A-FABP may play a role in bladder cancer progression and suggest that A-FABP could have a significant prognostic value in combination with other biomarkers. 相似文献
69.
Kovalenko IB Abaturova AM Gromov PA Ustinin DM Grachev EA Riznichenko GY Rubin AB 《Physical biology》2006,3(2):121-129
Most biological functions, including photosynthetic activity, are mediated by protein interactions. The proteins plastocyanin and cytochrome f are reaction partners in a photosynthetic electron transport chain. We designed a 3D computer simulation model of diffusion and interaction of spinach plastocyanin and turnip cytochrome f in solution. It is the first step in simulating the electron transfer from cytochrome f to photosystem 1 in the lumen of thylakoid. The model is multiparticle and it can describe the interaction of several hundreds of proteins. In our model the interacting proteins are represented as rigid bodies with spatial fixed charges. Translational and rotational motion of proteins is the result of the effect of stochastic Brownian force and electrostatic force. The Poisson-Boltzmann formalism is used to determine the electrostatic potential field generated around the proteins. Using this model we studied the kinetic characteristics of plastocyanin-cytochrome f complex formation for plastocyanin mutants at pH 7 and a variety of ionic strength values. 相似文献
70.
Pavel Gromov Irina Gromova Charlotta J. Olsen Vera Timmermans-Wielenga Mai-Lis Talman Reza R. Serizawa José M.A. Moreira 《Biochimica et Biophysica Acta - Proteins and Proteomics》2013,1834(11):2259-2270
Tumor interstitial fluid (TIF) is a proximal fluid that, in addition to the set of blood soluble phase-borne proteins, holds a subset of aberrantly externalized components, mainly proteins, released by tumor cells and tumor microenvironment through various mechanisms, which include classical secretion, non-classical secretion, secretion via exosomes and membrane protein shedding. Consequently, the interstitial aqueous phase of solid tumors is a highly promising resource for the discovery of molecules associated with pathological changes in tissues. Firstly, it allows one to delve deeper into the regulatory mechanisms and functions of secretion-related processes in tumor development. Secondly, the anomalous secretion of molecules that is innate to tumors and the tumor microenvironment, being associated with cancer progression, offers a valuable source for biomarker discovery and possible targets for therapeutic intervention. Here we provide an overview of the features of tumor-associated interstitial fluids, based on recent and updated information obtained mainly from our studies of breast cancer. Data from the study of interstitial fluids recovered from several other types of cancer are also discussed. This article is a part of a Special Issue entitled: The Updated Secretome. 相似文献