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Zhukova OV, Arkhipova EV, Kovaleva TF, Ryabov SA, Ivanova IP, Golovacheva AA, Zykova DA, Zaitsev SD. Immunopharmacological Properties of Methacrylic Acid Polymers as Potential Polymeric Carrier Constituents of Anticancer Drugs. Molecules 2021; 26:4855. [PMID: 34443443 PMCID: PMC8402103 DOI: 10.3390/molecules26164855] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 11/16/2022] Open
Abstract
Cytostatic chemotherapeutics provide a classical means to treat cancer, but conventional treatments have not increased in efficacy in the past years, warranting a search for new approaches to therapy. The aim of the study was, therefore, to obtain methacrylic acid (MAA) (co)polymers and to study their immunopharmacological properties. 4-Cyano-4-[(dodecylsulfanylthiocarbonyl)sulfanyl] pentanoic acid (CDSPA) and 2-cyano-2-propyl dodecyl trithiocarbonate (CPDT) were used as reversible chain transfer agents. Experiments were carried out in Wistar rats. The MTT assay was used to evaluate the cytotoxic effect of the polymeric systems on peritoneal macrophages. An experimental tumor model was obtained by grafting RMK-1 breast cancer cells. Serum cytokine levels of tumor-bearing rats were analyzed. The chain transfer agents employed in classical radical polymerization substantially reduced the molecular weight of the resulting polymers, but a narrow molecular weight distribution was achieved only with CDSPA and high CPDT concentrations. Toxicity was not observed when incubating peritoneal macrophages with polymeric systems. In tumor-bearing rats, the IL-10 concentration was 1.7 times higher and the IL-17 concentration was less than half that of intact rats. Polymeric systems decreased the IL-10 concentration and normalized the IL-17 concentration in tumor-bearing rats. The maximum effect was observed for a MAA homopolymer with a high molecular weight. The anion-active polymers proposed as carrier constituents are promising for further studies and designs of carrier constituents of drug derivatives.
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Affiliation(s)
- Olga V. Zhukova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603950 Nizhny Novgorod, Russia; (E.V.A.); (T.F.K.); (D.A.Z.)
| | - Evgenia V. Arkhipova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603950 Nizhny Novgorod, Russia; (E.V.A.); (T.F.K.); (D.A.Z.)
| | - Tatyana F. Kovaleva
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603950 Nizhny Novgorod, Russia; (E.V.A.); (T.F.K.); (D.A.Z.)
| | - Sergey A. Ryabov
- Department of High-Molecular Compounds and Colloid Chemistry, National Research Lobachevsky State University, 603022 Nizhny Novgorod, Russia; (S.A.R.); (I.P.I.); (A.A.G.); (S.D.Z.)
| | - Irina. P. Ivanova
- Department of High-Molecular Compounds and Colloid Chemistry, National Research Lobachevsky State University, 603022 Nizhny Novgorod, Russia; (S.A.R.); (I.P.I.); (A.A.G.); (S.D.Z.)
| | - Anna A. Golovacheva
- Department of High-Molecular Compounds and Colloid Chemistry, National Research Lobachevsky State University, 603022 Nizhny Novgorod, Russia; (S.A.R.); (I.P.I.); (A.A.G.); (S.D.Z.)
| | - Daria A. Zykova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603950 Nizhny Novgorod, Russia; (E.V.A.); (T.F.K.); (D.A.Z.)
| | - Sergey D. Zaitsev
- Department of High-Molecular Compounds and Colloid Chemistry, National Research Lobachevsky State University, 603022 Nizhny Novgorod, Russia; (S.A.R.); (I.P.I.); (A.A.G.); (S.D.Z.)
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Seledtsova GV, Ivanova IP, Shishkov AA, Seledtsov VI. Immune responses to polyclonal T-cell vaccination in patients with progressive multiple sclerosis. J Immunotoxicol 2016; 13:879-884. [PMID: 27602793 DOI: 10.1080/1547691x.2016.1223767] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The overall objective of disease management in autoimmune diseases is to suppress chronic inflammation and prevent organ damage. Therapies often revolve around five drug classes: non-steroidal anti-inflammatory drugs (NSAIDS), anti-malarials, steroids, immunosuppressants, and bio-therapies. However, none of these is a 'cure' and each displays a potential for adverse events. In particular, while all of them suppress harmful autoimmune responses, they also impact on useful protective immune responses. T-Cell receptor (TCR) immunogenicity provides a rationale for T-cell vaccinations to induce anti-idiotypic immune responses with the purpose of down-regulating functionality of idiotype-bearing self-reactive T-cells. To explore this, in this study, 39 patients with progressive (chronic) multiple sclerosis (MS) were multiply immunized with autological polyclonal T-cell vaccines (TCVs). None of the TCV-treated patients experienced any significant side-effects during the entire follow-up period (2 years). T-Cell vaccination had no significant effects on T-cell sub-population contents in the blood of MS patients after 2 years of immunotherapy initiation. However, a substantial reduction in the frequency of CD4+ and CD8+ memory T-cells able to produce interferon (IFN)-γ following activation were noted in the blood of TCV-treated patients. Moreover, significant and sustained reduction in plasma IFNγ levels and concomitant increases in interleukin (IL)-4 levels were documented in these samples. The TCV-treated subjects, however, exhibited no significant changes in plasma IL-17 and IL-18. More importantly was a significant decline in proliferative T-cell responses to myelin antigens in the TCV-treated patients, indicating attenuation of myelin-specific T-cell activity. Collectively, the results suggest that polyclonal T-cell vaccination is safe to use, able to induce measurable, long-lasting, anti-inflammatory immune effects in patients with advanced MS.
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Affiliation(s)
- Galina V Seledtsova
- a State Research Institute for Fundamental and Clinical Immunology , Novosibirsk , Russia
| | - Irina P Ivanova
- a State Research Institute for Fundamental and Clinical Immunology , Novosibirsk , Russia
| | - Alexey A Shishkov
- a State Research Institute for Fundamental and Clinical Immunology , Novosibirsk , Russia
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Piskarev IM, Trofimova SV, Burkhina OE, Ivanova IP. [Investigation of Free Radical Processes in Substrates and Biological Samples by Means of induced Chemiluminescence]. Biofizika 2015; 60:496-505. [PMID: 26349213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The possibility of applying induced chemiluminescence was investigated to evaluate oxidative capability of the substrate under the action of hydroxyl radicals and estimate the intensity of free radical processes in biological samples based on the analysis of the organic hydroperoxyde response in a probe. For this purpose the chemiluminescence light sum was measured in 3 steps: when Fe2+ was introduced into in a sample; in course of Fenton reaction (introducing Fe2+ and H202) and when Fe2+ was introduced into the sample after Fenton reaction. Light sum was measured depending on concentration (dilution) of the sample. It was shown that the light sum reaches the maximum value at certain dilution of the substrate studied. The maximum chemiluminescence's position is determined by concentration of RH fragments being oxidized, but the chemoluminescence light sum value is determined partially by the inhibitor [InH]/[RH] and organic hydroperoxides [ROOH]/[RH] found in the sample.
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Ivanova IP, Trofimova SV, Piskarev IM. [Evaluation of prooxidant properties of ascorbic acid]. Biofizika 2013; 58:582-586. [PMID: 24455878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Chemiluminescence of ascorbic acid in Fenton solution was investigated at acid concentration from 10(-7) to 1 mol/l. The yield of chemiluminescence exceeds spontaneous light from Fenton solution at [Asc] - 10(-4) - 10(-3) mol/l in the presence of dissolved oxygen, and prooxidant properties are displayed. When there is no oxygen in solution, this effect is not observed. A comparison of experimental data and oxidation process simulation shows that ascorbic acid is an antioxidant. Its transformation products in the presence of oxygen exert prooxidant properties.
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Orlova AG, Maslennikova AV, Golubiatnikov GI, Kamenskiĭ VA, Shakhova NM, Babaev AA, Snopova LB, Ivanova IP, Plekhanov VI, Prianikova TI, Turchin IV. [Noninvasive estimation of the oxygen state of experimental tumor by diffuse optical spectroscopy]. Biofizika 2011; 56:349-355. [PMID: 21542365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The potentialities of diffuse optical spectroscopy for the noninvasive estimation of the oxygen state of experimental tumors have been demonstrated. The distribution of total, oxygenated and deoxygenated hemoglobin, as well as the level oxygen saturation of blood have been shown using two tumor models differing in the histological structure and functional characteristics. The results obtained by the optical method have been verified by immunohistochemical examination of tissue specimens with the exogenous hypoxia marker pimonidazole.
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Maslennikova AV, Orlova AG, Golubiatnikov GY, Kamensky VA, Shakhova NM, Babaev AA, Snopova LB, Ivanova IP, Plekhanov VI, Prianikova TI, Turchin IV. Comparative study of tumor hypoxia by diffuse optical spectroscopy and immunohistochemistry in two tumor models. J Biophotonics 2010; 3:743-51. [PMID: 20715133 DOI: 10.1002/jbio.201000060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The capabilities of diffuse optical spectroscopy for noninvasive assessing of oxygen status in experimental tumors have been demonstrated. Specific features of the distribution of total hemoglobin, oxygenated hemoglobin, deoxygenated hemoglobin, and blood-oxygen saturation were shown on two tumor models having different histological structure and functional characteristics. The results obtained by the optical technique were verified by immunohistochemical study of tissue samples marked with exogenous marker of hypoxia--pimonidazole.
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Affiliation(s)
- Anna V Maslennikova
- Institute of Applied Physics RAS, 46 Ulyanov Str., Nizhny Novgorod, Russia; Nizhny Novgorod State Medical Academy, 10/1 Minin Sqr., Nizhny Novgorod, Russia.
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Ivanova IP, Seledtsov VI, Seledtsov DV, Samarin DM, Seledtsova GV, Herzsog OA, Kozlov VA. Characterization of immunogenic properties of polyclonal T cell vaccine intended for the treatment of rheumatoid arthritis. Bull Exp Biol Med 2008; 144:630-4. [PMID: 18642727 DOI: 10.1007/s10517-007-0391-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Two-staged technology for obtaining polyclonal T cell vaccine intended for the treatment of rheumatoid arthritis is described. Stage 1 includes antigen-dependent cultural selection of patient's T cells and stage 2 consists in their reproduction in the needed amounts by nonspecific mitogenic stimulation. T cell vaccination induces an effective specific anti-idiotypic immune response against T cells reactive to joint antigens. Vaccine therapy significantly reduces plasma level of IFN-gamma and increases IL-4 level. The results indicate immunological efficiency and safety of polyclonal T cell vaccine in patients with rheumatoid arthritis.
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Affiliation(s)
- I P Ivanova
- Institute of Clinical Immunology, Siberian Division of Russian Academy of Medical Sciences, Novosibirsk.
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Seledtsova GV, Seledtsov VI, Samarin DM, Senyukov VV, Ivanova IP, Akimenko ZA, Tsyrlova IG, Wolpe SS, Kozlov VA. Erythroid cells in immunoregulation: characterization of a novel suppressor factor. Immunol Lett 2005; 93:171-8. [PMID: 15158614 DOI: 10.1016/j.imlet.2004.03.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2003] [Revised: 02/22/2004] [Accepted: 03/16/2004] [Indexed: 11/23/2022]
Abstract
Nucleated erythroid cells (EC) have been previously reported to possess a potent natural suppressor (NS) activity for B-cell responses. In this study, we demonstrate that murine EC are able to reduce not only lipopolysaccharide (LPS)-driven B-cell proliferation, but also proliferative and cytotoxic T-cell responses generated in a primary allogeneic mixed lymphocyte culture (MLC); and that a soluble low molecular weight factor may be involved in such EC-derived immunoregulation. In addition, the erythroid cell-derived suppressor factor (ESF) was found to be capable of effectively reducing the allergen-driven proliferation of peripheral blood mononuclear cells (PBMC) isolated from allergic patients. From the data presented herein, it appears that ESF is heat-stable (80 degrees C for 20 min) and has molecular weight (MW) lower or close to 0.5 kDa. ESF activity is resistant to both enzyme (trypsin plus chymotrypsin) proteolysis and action of the enzymes such as lipase and phospholipase C. On the other hand, ESF is effectively inactivated by neuraminidase treatment, suggesting the presence in its structure of sialic residue(s). The neuraminidase-sensitive, ESF-like activity is readily detected in the medium conditioned with normal mouse bone marrow (BM) cells. On fractionation of low MW erythroid products on a reversed-phase C16 column in a linear acetonitrile gradient (5-95%), ESF activity is detected in the first peak alone with the shortest time of its retention by the column. The results suggest that (1) by producing ESF, EC may regulate both B- and T-cell-mediated immune processes and (2) based on its physicochemical and biological characteristics, ESF can be distinguished from each of earlier characterised suppressor mediators of bone marrow origin.
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MESH Headings
- Allergens/immunology
- Allergens/pharmacology
- Animals
- Animals, Newborn
- Bone Marrow Cells/metabolism
- Cell Proliferation/drug effects
- Coculture Techniques
- Culture Media, Conditioned/pharmacology
- Cytotoxicity, Immunologic/drug effects
- Cytotoxicity, Immunologic/immunology
- Erythroblasts/immunology
- Erythroblasts/metabolism
- Erythroid Cells/immunology
- Erythroid Cells/metabolism
- Erythropoietin/pharmacology
- Humans
- Immune Tolerance/immunology
- Immune Tolerance/physiology
- Immunosuppressive Agents/immunology
- Immunosuppressive Agents/metabolism
- Immunosuppressive Agents/pharmacology
- Leukocytes, Mononuclear/drug effects
- Leukocytes, Mononuclear/immunology
- Lipopolysaccharides/pharmacology
- Liver/cytology
- Liver/immunology
- Lymphocyte Activation/drug effects
- Lymphocyte Activation/immunology
- Lymphocyte Culture Test, Mixed
- Mice
- Mice, Inbred C57BL
- Mice, Inbred CBA
- Mice, Inbred DBA
- Neuraminidase/metabolism
- Peptide Hydrolases/metabolism
- Phenylhydrazines/pharmacology
- Phospholipases/metabolism
- Spleen/cytology
- Spleen/drug effects
- Spleen/immunology
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Affiliation(s)
- Galina V Seledtsova
- Department of Immunohematology, Institute of Clinical Immunology, Russian Academy of Medical Sciences, 14 Yadrintsevskaya street, 630099 Novosibirsk, Russia.
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Ivanova IP, Zuĭmach EA, Selemir VD, Spirov GM, Prokhorova NV, Solynina OV. [Dynamic effects of crown and spark pulse categories on metabolic processes of blood of rats]. Fiziol Zh (1994) 2005; 51:37-42. [PMID: 16329390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
In work it is investigated influences of pulse categories on a metabolism of not purebred rats in dynamics. Research spent to the first day, through six, in twelve day after influence. It is shown, that category crown 5 of impulses and spark's category 100 of impulses, cause increase oxidations lipids for the sixth day and decrease oxidations lipids in plasma of blood and erythrocytes by twelfth day after influence. Influence category crown 50 of impulses and spark category 300 of impulses leads to increase of a level oxidations lipids on membranes erythrocytes. Categories crown 5 and 50 impulses cause dynamic changes of resistance erythrocytes. Decrease in stability for the sixth day and increase of stability erythrocytes by twelfth day after influence categorys crown is shown by pulse categories.
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Perlin DV, Varshavskiĭ VA, Kudriavtsev IV, Ivanova IP, Chumakov AM, Proskurneva EP, Tyrin VV. [Use of a three-component scheme of immunosuppression on morphologic and immunohistochemical changes of transplants in the early postoperative period]. Urologiia 2002:30-3. [PMID: 12402773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Abstract
Three-component (cyclosporin A, corticosteroids and azathioprine) immunosuppression has been widely introduced in the treatment of recipients of renal transplants because it allows a significant reduction of the components' doses in greater effectiveness. The analysis of the results of 83 puncture biopsies obtained in the immediate postoperative period after kidney transplantation has shown that administration of an imidazole derivative allows raising therapeutic concentration of cyclosporin up to 200-300 ng/ml, thus preventing rejection crises. However, increased blood concentration of cyclosporin does not increase its toxicity as a result of a significant fall in the overall level of the metabolites.
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Ivanova IP, Nepomniashchikh VM, Shirinskiĭ VS, Kozhevnikov VS, Nonenkova LP, Kozlov VA. [Normobaric hypoxy-therapy of patients with bronchial asthma]. Klin Med (Mosk) 2002; 79:36-9. [PMID: 11641934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Conventional drug therapy for moderate atopic or mixed bronchial asthma was combined with normobaric hypoxytherapy (NBHT) in 32 patients (a course of 10 sessions) and was not combined in 20 control patients. Clinical results show that NBHT enhances response to conventional therapy of moderate bronchial asthma as confirmed by a significant relief of the clinical symptoms, by a significant rise of volumic and flow parameters of external respiration function, a fall in the number of CD 20+ B cells, low level of serum IgE, increased number of phagocyting neutrophils and cells carrying erythroblast antigen in peripheral blood.
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Zaĭtseva OV, Ivanova IP, Luk'ianova EL. [Ultrastructure the procerebrum cell bodies in snails and slugs]. Zh Evol Biokhim Fiziol 2000; 36:322-30. [PMID: 11075460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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Zaĭtseva OV, Luk'ianova EL, Ivanova IP. [Ultrastructure of various neuropil areas in the procerebrum from snails and slugs]. Zh Evol Biokhim Fiziol 2000; 36:331-8. [PMID: 11075461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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Perlin DV, Darenkov SP, Starostenko MA, Vladimirskiĭ MA, Prokopenko EI, Ivanova IP. [Generalized tuberculosis after kidney transplantation]. Urologiia 1999:26-8. [PMID: 11150150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Tuberculosis is one of severe infectious complications in patients on hemodialysis and after kidney transplantation. Incidence of disseminated and generalized forms is high, whereas clinical symptoms are weak and nonspecific. An aggressive generalized form of tuberculosis was observed in a kidney transplant recipient. M. tuberculosis, the antigen and DNA were registered only a few days before death. Disseminated foci in the lungs were seen on CT image only in the agonal period in spite of multiple x-ray investigations. Thus, our experience and experience of other investigators evidence that if recipients of renal transplant have fever of unknown genesis and do not respond to standard antibiotic therapy, tuberculosis should be suspected and a course of specific antituberculosis therapy should be started as early as possible.
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Ivanova IP, Tananko EM, Shirinskiĭ VS. [Changes in functional activity of blood neutrophils in pollenosis patients: effects of specific immunotherapy]. TERAPEVT ARKH 1999; 71:57-60. [PMID: 10358867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
AIM The study of effective and regulatory functions of neutrophilic granulocytes in patients with pollenosis exacerbation, correction of the impaired neutrophil function with standard treatment and specific immunotherapy (SIT). MATERIALS AND METHODS The study included 103 healthy donors (controls) and 122 patients with pollenosis aggravation. 69 of the latter received symptomatic treatment. 53 patients received preseasonal SIT with water-salt extracts of the pollen allergens. RESULTS The untreated pollenosis patients had hyperproduction of interleukin-1 (IL-1) by nonstimulated blood neutrophils associated with elevation of NBT-reduction and lowering of phagocytic activity in decreasing count of Fc- and Ca-receptors. Effective SIT produced recovery of phagocytic activity, the number of Fc- and Ca-receptors, IL-1-activity of cell supernatants. CONCLUSION One of the SIT targets in pollenosis patients is neutrophilic granulocytes.
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Grigorian EN, Ivanova IP, Poplinskaia VA. [The discovery of new internal sources of neural retinal regeneration after its detachment in newts. Morphological and quantitative research]. Izv Akad Nauk Ser Biol 1996:319-32. [PMID: 8755030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A model of experimental detachment of the retina in adult newts Pleurodeles waltl was used for studies of internal sources of the neural retina regeneration. Changes in morphology, localization, behavior, and abundance of the cells of various retinal layers were studied on serial semithin and ultrathin sections of the retina taken at different times after the operation. As a result, a new class of cells was found in the external nuclear layer, which differ from the photoreceptors but have a certain morphological similarity with the bipolar cells in the internal nuclear cell layer that have a Landolt's club. These cells were called bipolar-like cells. The bipolar-like cells, which amount to 10-12% of the cells in the external nuclear layer, proved to be capable of producing new photoreceptors during retina recovery after its detachment. We propose that the bipolar cells with Landolt's club of the internal nuclear layer that are displaced towards the sclera after the death of a part of the photoreceptors are a source of the bipolar-like cells of the external nuclear layer. Supposedly, they are also a source of neuroblasts that we first found at later stages after detachment in the case of more intense destruction of the retina nuclear layers. The neuroblasts arising in the internal nuclear layer are displaced apically and divide to form radial "inserts", whose cells differentiate and restore the cell composition of all three nuclear layers of the detached retina. The discovered internal sources of regeneration of the neural retina in newts are compared with those known in fish, precursor cells of rods, and the role of other cell types in the retina regeneration is described under the given conditions of its damage.
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Minin AA, Ivanova IP. Sodium ions affect axis formation and epiboly in fish embryos. Int J Dev Biol 1996; Suppl 1:233S-234S. [PMID: 9087776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- A A Minin
- N.K.Koltzov Institute of developmental biology, Moscow, Russia
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Ivanova IP, Radomicheva TV, Makarenko IG, Ugriumov MV. [Proliferation of capillary endothelium in the primary plexus of the hypothalamo-hypophyseal portal circulatory system during rat ontogenesis]. Biull Eksp Biol Med 1995; 119:462-464. [PMID: 7579233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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Kuprianova OA, Mordvinov VA, Ivanova IP, Krugleeva OL, Braga EA, Nosikov VV, Kozlov VA, Lozovoĭ VP. [Assessment of interleukin-1 beta mRNA expression in the norm and pathology]. Biull Eksp Biol Med 1991; 112:619-21. [PMID: 1777630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We investigated cytoplasmic RNA from the peripheral blood cells of pollinosis patients. Increased levels of IL-I mRNA were registered in neutrophils of patients suffering from pollinosis for a long time. Neutrophils from patients at the time of exacerbation of pollinosis responded to stimuli less than the cells from healthy donors. During remission the activated neutrophils from pollinosis patients and those from healthy donors had same levels of IL-I mRNA.
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Doroshenko IA, Bagirova VV, Ivanova IP, Kaĭsarov GA. [Temporary loss of work capacity in connection with rheumatic diseases in workers of the agricultural-industrial complex]. Revmatologiia (Mosk) 1991:8-11. [PMID: 1839863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The authors studied the morbidity rate accompanied by temporary incapacity for work in workers of the agricultural and industrial complex suffering from diseases of the joints. It has been established that rheumatic diseases take the first place as to their duration (number of days) and the second place at to their incidence (number of cases) per 100 workers. An annual rise in rheumatic disease prevalence, especially of a degenerative dystrophic nature was noted. Of importance are the age of patients service record in agriculture, intensity of load, nature of work, season. Machine operators were most liable to the mentioned disease.
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Ivanova IP, Ugriumov MV. [Morphometric analysis of the formation of the external zone of the median eminence of the rat hypothalamus in the perinatal period]. Ontogenez 1987; 18:128-33. [PMID: 3587848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Morphometric electron microscopy data were obtained using a semiautomatic image analysis which demonstrate that the main stages of formation of the external zone of median eminence in the rat hypothalamus take place during the perinatal period. From the 20th day of prenatal period to the 9th day of postnatal period, the length of contact between the neurosecretory axons and the primary portal plexus increases twice, whereas that between the basal processes of ependyma cells and the primary portal plexus by a factor of 1.5. At the same time, the number of secretory granules and microvesicles in axons and that of pinocytotic vesicles in the basal processes markedly increases. Regional differences in the distribution of vesicular structures were noted in neonatal animals: secretory granules were more numerous in the axon swellings remote from the external basal lamina; pinocytotic vesicles were more numerous in the basal processes which terminated in the medial median eminence.
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Ugrumov MV, Ivanova IP, Mitskevich MS, Liposits Z, Sétáló G, Flerkó B. Axovascular relationships in developing median eminence of perinatal rats with special reference to luteinizing hormone-releasing hormone projections. Neuroscience 1985; 16:897-906. [PMID: 3912679 DOI: 10.1016/0306-4522(85)90104-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Topographical relationships of neurosecretory axons with the capillaries of the primary portal plexus were studied in the median eminence of rats from the 14th fetal till the 9th postnatal day by means of electron microscopy combined with morphometric analysis. Special attention was given to the light and electron microscopic immunocytochemical examination of luteinizing hormone-releasing hormone projections to the median eminence. Neurosecretory axons possessing secretory granules and clear microvesicles were first observed in the median eminence at the 14th fetal day. However, all of them were situated at a distance from the primary portal plexus. By the 20th fetal day, neurosecretory axons reached the external basal lamina of the primary portal plexus giving rise to so-called axovascular contacts. Some axons even penetrated into the perivascular space, apparently facilitating the neurohormone delivery into the hypophysial portal circulation. From that time on, both the number of the axons abutting on the external basal lamina and the entire area of axovascular contacts increased gradually. As to luteinizing hormone-releasing hormone axons, they grew into the median eminence from the 18th fetal day concentrating in older fetuses and neonates either over the primary portal plexus, or around the infundibular recess of the 3rd ventricle. After birth, the concentration and distribution of luteinizing hormone-releasing hormone axons within the median eminence became similar to those of adults. Luteinizing hormone-releasing hormone axons were found to arise from the neurons of septopreoptic area including the diagonal band of Broca. These data suggest the onset of neurohormone release in the median eminence from the 14th fetal day followed by the establishment of the hypothalamic control over the pituitary functions during the perinatal period in rats.
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Ivanova IP, Ugriumov MV. [Electron microscopic research on the capillary permeability of the primary portal plexus in rats in the prenatal period]. Tsitologiia 1985; 27:148-52. [PMID: 3992657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Permeability of portal capillaries to intravascularly injected ionic lanthanum, ferritin and horse-radish peroxidase has been examined in rats on the 18th fetal day, and on days 1 and 9 of postnatal life. For several minutes, tracer molecules pass through the capillary wall and reach the median eminence. In the case of immature capillaries, the materials pass freely through the endothelial cells, and to a lesser extent are transferred via occasional plasmalemmal vesicles and fenestrae. As the maturation of capillaries proceeds their permeability via plasmalemmal vesicles and fenestrae increases considerably due to a gradual rise in the number of these structures. The plasmalemma of differentiated endothelial cells becomes impermeable to all the tracers. Only ionic lanthanum appears to penetrate through transendothelial channels and intercellular junctions between adjacent endothelial cells.
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Ugriumov MV, Borisova NA, Ivanova IP. [Formation of the external zone of the median eminence of rats in the perinatal period]. Ontogenez 1984; 15:505-13. [PMID: 6504498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The formation of interrelations of the axons of neurosecretory cells and of ependyme cells with the capillaries of primary portal plexus in rats from the 14th day of embryogenesis till the 9th day of postnatal life was studied using the light and electron microscope methods. During the whole period under study, the basal processes of the ependyme cells reach the primary portal plexus of the capillaries. The terminals of the basal processes are usually separated from the endothelium of the capillaries by two basal membranes and enclosed pericapillary space. After the birth, some basal process penetrate in the pericapillary space and terminate on the endothelium. The surface of contact of the ependyme cell processes with the external basal membrane increases with the age, this being accompanied by the increase of pinocytotic activity. The neurosecretory axons are found in the median eminence already on the 14th day of embryogenesis, but by the 20th day only they reach the external basal membrane and penetrate sometimes in the pericapillary space. After the birth, the number of axons reaching the external basal membrane and the surface of contact between them increase gradually with, apparently, a concomitant intensification of the transport of neurohormones in the portal circulatory system of the hypophysial-hypothalamic complex.
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Ugrumov MV, Ivanova IP, Mitskevich MS. Light- and electron-microscopic study on the maturation of the primary portal plexus during the perinatal period in rats. Cell Tissue Res 1983; 234:179-91. [PMID: 6640616 DOI: 10.1007/bf00217411] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The maturation of the capillaries of the primary portal plexus in rats during the perinatal period has been studied light- and electron-microscopically. The number of capillaries covering the median eminence and of those invading the nervous tissue (capillary loops) increases significantly with age. Capillary loops were observed as early as the 18th fetal day. The mitotic divisions of the endothelial cells within the preexisting capillaries seem to be the main reason for the vascular growth. Immature capillaries with a characteristic narrow lumen are surrounded by a fuzzy basal lamina; their wall is formed by a generally expanded endothelium with rather sparse organelles and inclusions, and by minute flattened areas. The maturation of the capillary results in a progressive spread of flattened endothelium followed by an enlargment of the capillary lumen. Moreover, a rising concentration of organelles and inclusions, relatively numerous luminal microvilli, and a dense and uniform basal lamina become noticeable as capillary differentiation proceeds. These data are thought to reflect the progressive increase in the metabolic activity of the endothelium as well as the establishment of capillary patency during the perinatal period of rats.
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Ugrumov MV, Ivanova IP, Mitskevich MS. Permeability of the blood-brain barrier in the median eminence during the perinatal period in rats. Cell Tissue Res 1983; 230:649-60. [PMID: 6850785 DOI: 10.1007/bf00216208] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
An electron microscopic study has been carried out in order to examine the permeability of the blood-brain barrier in the median eminence of perinatal rats. After several minutes, intravascularly injected electron-dense tracers (lanthanum nitrate; horseradish peroxidase, 40000 MW1, ferritin, 500000 MW) pass the capillary wall, the perivascular space, and become incorporated into neurosecretory axons and basal processes of tanycytes both in fetuses and young rats. In the case of immature capillaries, the materials diffuse freely through the endothelial cells, and to a lesser extent are transferred via occasional plasmalemmal vesicles and fenestrae. As the maturation of capillaries proceeds, their permeability via plasmalemmal vesicles and fenestrae increases considerably due to a gradual rise of the number of these structures. The plasmalemmata of the differentiated endothelial cells become impermeable to all of the tracers. Only ionic lanthanum appears to penetrate through transendothelial channels and intercellular junctions between adjacent endothelial cells.
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27
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Ivanova IP. [Development of the capillaries of the primary portal plexus of the hypothalamus in rats in the perinatal period]. Ontogenez 1982; 13:409-18. [PMID: 7122031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The structure of capillaries of the primary portal plexus in rats was studied on the 18th day of prenatal period and ist and 9th days of postnatal period. The number of capillaries and capillary loops penetrating in the nervous tissue of median eminence increases during development. The endothelial cells divide and differentiate and this is accompanied by the decrease in the volume of perikaryons, the flattening of peripheral cell regions and the increase in the number of fenestrae. The greatest number of pinocytotic vesicles is noted in the newborn rats. The morphometrical data obtained suggest indirectly the transport of substances through the wall of capillaries in foetuses and newborn rats mainly via pinocytotic vesicles and on the 9th day of life via fenestrae.
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Brytskov VE, Levina LN, Kriukov VS, Ivanova IP. [Effectiveness of using new forms of vitamins for animals]. Veterinariia 1978:92-3. [PMID: 734915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Rozovskiĭ IS, Ivanova IP, Ivanov AN. [Obstetrical aspects of Willebrand's disease]. Vopr Okhr Materin Det 1978; 23:79-82. [PMID: 308729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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