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Daskal Y, Tauchnitz T, Güth F, Dittrich R, Joseph Y. Assembly Behavior of Organically Interlinked Gold Nanoparticle Composite Films: A Quartz Crystal Microbalance Investigation. Langmuir 2017; 33:11869-11877. [PMID: 28933556 DOI: 10.1021/acs.langmuir.7b01974] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Thin films based on dodecylamine stabilized gold nanoparticles interlinked with different organic molecules are prepared by automatic layer-by-layer self-assembly in a microfluidic quartz crystal microbalance (QCM) cell, to obtain an in situ insight on the film formation by ligand/linker exchange reactions. The influence of interlinking functional groups and the length of the organic linker molecule on the assembly behavior is investigated. Alkyldithiols with different lengths are compared to alkyldiamines and alkylbisdithiocarbamates with a C8 alkylic molecular backbone. The stepwise layer-by-layer assembly occurs independently of the linker molecule, while the largest frequency changes always correspond to the gold nanoparticle step. During the solvent rinsing and ligand/linker exchange reaction step, the frequency is almost constant with slight increases or decreases dependent on the molar mass of the linker compared to the exchanged ligand. The assembly efficiency is higher for shorter molecules and for molecules with stronger interacting functional groups. The densities of the composite films are calculated from QCM data and independent thickness measurements. They reflect the higher fraction of organic material in the films comprising longer organic linkers. The plasmon resonance band of the gold nanoparticles in the final assemblies is measured with UV/vis spectroscopy. Band positions in films prepared from dithiols and diamines of comparable lengths are very similar, while the spectrum of the bisdithiocarbamate film exhibits a distinct blue-shift. This observation is explained by the longer molecular structure of the linker due to a larger binding group, in conjunction with a delocalization of particle charge on the organic molecule. Obtained results play an essential role in the understanding of thin film layer-by-layer self-assembly processes, and enable the formation of new gold nanoparticle networks with organic diamine and bisdithiocarbamate molecules.
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Affiliation(s)
- Yelyena Daskal
- Institute of Electronic and Sensor Materials, TU Bergakademie Freiberg , Gustav-Zeuner-Straße 3, 09599 Freiberg, Germany
| | - Tina Tauchnitz
- Institute of Electronic and Sensor Materials, TU Bergakademie Freiberg , Gustav-Zeuner-Straße 3, 09599 Freiberg, Germany
| | - Frederic Güth
- Institute of Electronic and Sensor Materials, TU Bergakademie Freiberg , Gustav-Zeuner-Straße 3, 09599 Freiberg, Germany
| | - Rosemarie Dittrich
- Institute of Electronic and Sensor Materials, TU Bergakademie Freiberg , Gustav-Zeuner-Straße 3, 09599 Freiberg, Germany
| | - Yvonne Joseph
- Institute of Electronic and Sensor Materials, TU Bergakademie Freiberg , Gustav-Zeuner-Straße 3, 09599 Freiberg, Germany
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Weiland AP, Daskal Y, Kerman R, Smalling RW, Williams JP, Walker WE. AIDS prodrome in an apparently normal man following coronary artery bypass: new significance of postoperative bleeding. Tex Heart Inst J 1985; 12:195-7. [PMID: 15227031 PMCID: PMC341839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
An otherwise healthy, apparently normal 45-year-old man underwent a triple coronary artery bypass procedure, complicated only by modest postoperative bleeding. He had received aspirin and dipyridamole preoperatively, and was given 1 unit of packed red cells and 4 units of fresh frozen plasma on the day of operation. Fifteen months later, malaise and diffuse lymphadenopathy developed. Lymph node biopsy and immune studies were characteristic of the AIDS prodrome. This experience emphasizes the need for control of bleeding and the avoidance of blood products wherever possible.
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Affiliation(s)
- A P Weiland
- Division of Thoracic and Cardiovascular Surgery, The University of Texas Medical School at Houston, Texas, USA
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Daskal Y, Mattioli CA, Kao-Jen J, Terman DS. Histological and ultrastructural changes in breast adenocarcinoma after treatment with plasma perfused over immobilized protein A. Cancer Res 1984; 44:2225-35. [PMID: 6713411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Administration of plasma perfused over Protein A immobilized in collodion-charcoal produced focal acute tumor necrolytic reactions in breast adenocarcinomas. With repeated procedures, objective tumor regressions were observed in four of the first five consecutive patients treated. Within 4 to 48 hr after treatments, tumors became hyperemic and edematous, often with the appearance of focal vesicles. Microscopic and ultrastructural evaluation demonstrated a spectrum of lesions in cytoplasm and nucleus of tumor cells indicative of lethal and sublethal changes. With further treatments, more pronounced degenerative changes in individual tumor cells, tumor nodules, and intervening stroma were apparent. Furthermore, increased luminal and abluminal vesiculation of endothelial cells of postcapillary venules adjacent to tumor nodules was noted. With continued treatments at intervals of 2 to 3 days, some tumor sites showed focal mononuclear cell infiltration, and at the conclusion of plasma perfusion treatments previously ulcerated tumor foci were replaced by granulation tissue. These data suggest that several cytotoxic and inflammatory mechanisms are activated simultaneously or in succession and may account for the tumoricidal effects noted following repeated plasma perfusions.
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Busch H, Busch RK, Chan PK, Choi YC, Daskal Y, Domae N, Harmon F, Kobayashi K, Nohga K, Smetana K. Ultrastructural and purification studies on human tumor nucleolar antigens and nucleolar particles. Cancer Invest 1983; 1:25-40. [PMID: 6667397 DOI: 10.3109/07357908309040930] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The presence of common nucleolar antigens in a broad array of human malignant tumors has led to several lines of investigations. In addition to studies on an increasing number of benign and malignant neoplasms with a variety of antibodies designed to statistically evaluate the presence of nucleolar antigens, purification procedures and chemical analyses are being used to characterize the specific antigens. The localization of the nucleolar antigens in HeLa cells was studied by the postembedding immunoelectron microscopic procedure employing rabbit antibodies to nucleoli or nuclear Tris extracts of these cells. The products of the peroxidase-antiperoxidase complexes visualized by the reaction with diaminobenzidine in nucleoli were mainly found in the nucleolonemas which contain the dense nucleolar RNP components. When these nucleoli became compact after treatment of HeLa cells with adriamycin, the distribution of the immunoreactive products was altered along with distribution of the dense nucleolar components. The human nucleolar antigens were mainly localized to nucleolar regions containing the nucleolar RNP components. Improved purification of the antigens made it possible to provide a satisfactory amino acid analysis of one pI 6.3 antigen. Interestingly, some of the nucleolar antigen was found in miniparticle undescribed until now.
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Terman DS, Young JB, Shearer WT, Ayus C, Lehane D, Mattioli C, Espada R, Howell JF, Yamamoto T, Zaleski HI, Miller L, Frommer P, Feldman L, Henry JF, Tillquist R, Cook G, Daskal Y. Preliminary observations of the effects on breast adenocarcinoma of plasma perfused over immobilized protein A. N Engl J Med 1981; 305:1195-200. [PMID: 6270553 DOI: 10.1056/nejm198111123052006] [Citation(s) in RCA: 112] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Mong S, Daskal Y, Prestayko AW, Crooke ST. DNA supercoiling, shortening, and induction of single-strand regions by cis-diamminedichloroplatinum(II). Cancer Res 1981; 41:4020-6. [PMID: 7197192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
cis-Diamminedichloroplatinum(II) was found to bind to covalently closed circular supercoiled, covalently closed circular nonsupercoiled, and single-strand broken relaxed PM2 DNA and induce different types of DNA conformational changes. Using Kleinschmidt's technique, it was found that binding of cis-diamminedichloroplatinum(II) decreased the DNA length to 75% of the original single-strand broken relaxed DNA without inducing superhelical conformational changes. cis-Diamminedichloroplatinum(II) also shortened the length of covalently closed circular nonsupercoiled DNA before a supercoiled conformation was generated. Single strand-specific nucleases were used to detect drug-induced DNA structural alterations. Local single-strand regions or regions of denaturation were detected by S1 nuclease from Aspergillus oryzae and by BAL-31 nuclease from Alteromonas espejiana BAL-31. The single-strand regions or local denaturation regions do not seem to be related to or caused by DNA superhelical conformational changes since they were detected at drug concentrations at which no significant DNA superhelical turns were found. DNA shortening, superhelical conformational changes, and local denaturation regions can be explained by the previously proposed "DNA intrastrand cross-linking" model (Stone et al., J. Mol. Biol., 104: 793-801, 1976).
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Ballal NR, Daskal Y, Samal B, Busch H. Characterization of a nucleolar residue fraction that specifically transcribes preribosomal RNA. Cell Biol Int Rep 1980; 4:997-1007. [PMID: 7438225 DOI: 10.1016/0309-1651(80)90172-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Treatment of isolated nucleoli with Sarkosyl (2%) dissociated 99.5% of the proteins. The residual DNA-protein complex contained the endogenous transcriptional activity which had a high fidelity of RNA synthesis. Electron microscopic analysis of this residue fraction showed the presence of 150-200A diameter protein globules present along the length of some of the DNA fibers. SDS-polyacrylamide gel electrophoretic analysis of the proteins of the complex indicated that the subunits of purified RNA polymerase I were only a minor component of this complex. Associated with the complex were the U3 and 5S RNA.
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Daskal Y, Smetana K, Busch H. Evidence from studies on segregated nucleoli that nucleolar silver staining proteins C23 and B23 are in the fibrillar component. Exp Cell Res 1980; 127:285-91. [PMID: 6155282 DOI: 10.1016/0014-4827(80)90434-6] [Citation(s) in RCA: 62] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Busch H, Busch RK, Chan PK, Daskal Y, Gyorkey F, Gyorkey P, Kobayashi M, Smetana K, Sudhakar S. A nucleolar antigen in human malignant tumors. Transplant Proc 1980; 12:99-102. [PMID: 6989059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Daskal Y, Komaromy L, Busch H. Isolation and partial characterization of perichromatin granules. A unique class of nuclear RNP particles. Exp Cell Res 1980; 126:39-46. [PMID: 7358094 DOI: 10.1016/0014-4827(80)90468-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Terman DS, Yamamoto T, Mattioli M, Cook G, Tillquist R, Henry J, Poser R, Daskal Y. Extensive necrosis of spontaneous canine mammary adenocarcinoma after extracorporeal perfusion over Staphylococcus aureus Cowans I. I. Description of acute tumoricidal response: morphologic, histologic, immunohistochemical, immunologic, and serologic findings. The Journal of Immunology 1980. [DOI: 10.4049/jimmunol.124.2.795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Terman DS, Yamamoto T, Mattioli M, Cook G, Tillquist R, Henry J, Poser R, Daskal Y. Extensive necrosis of spontaneous canine mammary adenocarcinoma after extracorporeal perfusion over Staphylococcus aureus Cowans I. I. Description of acute tumoricidal response: morphologic, histologic, immunohistochemical, immunologic, and serologic findings. J Immunol 1980; 124:795-805. [PMID: 7356714] [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: 01/24/2023]
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Daskal Y, Soloway MS, DeFuria MD, Crooke ST. Morphological effects of mitomycin C administered intravesically to normal mice and mice with N-[4-(5-nitro-2-furyl)-2-thiazolyl]-formamide-induce bladder neoplasms. Cancer Res 1980; 40:261-7. [PMID: 7356509] [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: 01/24/2023]
Abstract
The intravesical administration of mitomycin C to normal and N-[4-(5-nitro-2-furyl)-2-thiozolyl]formamide-induced bladder tumor-carrying mice at initial concentrations of 2 and 5 mg/ml for 2 hr resulted in marked morphological effects including cytoplasmic and nuclear abnormalities and disruption of surface architecture. Tumors cells and normal urothelial cells were sensitive to the effects of mitomycin C. These effects were limited to epithelial cells.
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Catino JJ, Busch H, Daskal Y, Yeoman LC. Subcellular localization of DNA-binding protein BA by immunofluorescence and immunoelectron microscopy. J Cell Biol 1979; 83:462-7. [PMID: 227916 PMCID: PMC2111536 DOI: 10.1083/jcb.83.2.462] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Nonhistone protein BA has been shown to decrease in amount in the chromatin of growth- stimulated normal rat liver (Yeoman et al. 1975. Cancer Res. 35:1249-1255) and in mitogen-stimulated normal human lymphocytes (Yeoman et al. 1976. Exp. Cell Res. 100:47- 55.). Subsequently, protein BA was purified and was shown to prefer to bind to double- stranded A-T-rich DNAs (Catino et al. 1978. Biochemistry. 17:983-987.). Immunization of rabbits with highly purified protein BA has resulted in the production of a specific antibody. A specific immunoreactivity for chromosomal protein BA has been demonstrated by immunoelectrophoresis and double antibody immunoprecipitation analysis with rabbit anti-BA immunoglobulin and IgG fractions. Light microscope examination of normal rat liver crysections by the indirect immunofluorescence procedure has demonstrated a cytoplasmic as well as a nuclear localization for protein BA with a pronounced perinucleolar fluorescence. Immunoelectron microscopy employing the peroxidase antiperoxidase method of antigen localization has confirmed the immunofluorescence data and has show a heterochromatin localization for protein BA. The relationship of the localization of protein BA to gene control in quiescent cells or to configurations of heterochromatin as well as the marked reduction in the amounts of protein BA which occur in stimulated growth states remains to be defined.
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Lehane D, Winston A, Gray R, Daskal Y. The effect of diuretic pre-treatment on clinical, morphological and ultrastructural cis-platinum induced nephrotoxicity. Int J Radiat Oncol Biol Phys 1979; 5:1393-9. [PMID: 118952 DOI: 10.1016/0360-3016(79)90677-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Merski JA, Daskal Y, Crooke ST, Busch H. Acute ultrastructural effects of the antitumor antibiotic carminomycin on nucleoli of rat tissues. Cancer Res 1979; 39:1239-44. [PMID: 421207] [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: 12/15/2022]
Abstract
Male Sprague-Dawley rats were treated with carminomycin i.v. in doses ranging from 1 to 40 mg/kg. Within 1 hr after the administration of carminomycin, 20 mg/kg, nucleoli of cardiac and skeletal muscle cells were segregated, while nucleoli of liver parenchyma cells were unaffected. Three and one-half hr after drug administration, cardiac muscle nucleoli reverted to normal ultrastructure. However, some skeletal muscle cell nucleoli were still segregated. Following treatment with carminomycin, 10 mg/kg, no significant ultrastructural changes were observed. These results demonstrate that at sufficiently high doses carminomycin induces ultrastructural lesions in nucleoli of both cardiac and muscle cells. The dose of carminomycin required to produce nucleolar segregation in cardiac and skeletal muscle is 6 times greater than the dose of Adriamycin (3.5 mg/kg) required to induce equivalent alterations.
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Busch H, Daskal Y, Gyorkey F, Smetana K. Silver staining of nucleolar granules in tumor cells. Cancer Res 1979; 39:857-63. [PMID: 85481] [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: 12/12/2022]
Abstract
With the aid of a simple silver-staining procedure, large numbers and unusual arrays of nucleolar argyrophilic granules were found in Novikoff hepatoma, KB, and HeLa cells. Some of these arrays consisted of linearly arranged discrete granules, and others were in two to three rows each containing three to five granules. Corresponding formations were not found in either the normal or regenerating liver nucleoli which contained an argyrophilic network in which the dark granules were apparently associated with the less dark argyrophilic fibrils of a reticulum. The nucleolar argyrophilic granules were readily identifiable in the separated daughter nuclei of the tumor cells in telophase, suggesting that the increased nucleolar activity of the G1 phase begins in these cells even before cell division has been completed.
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Abstract
This study is the first report of scanning-electron microscopy of isolated and purified metaphase chromosomes containing drug-induced aberrations. The technique reported allows high resolution topological examination of chromosomal aberrations which may pass undetected with conventional techniques.
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Goldknopf IL, French MF, Daskal Y, Busch H. A reciprocal relationship between contents of free ubiquitin and protein A24, its conjugate with histone 2A, in chromatin fractions obtained by the DNase II, Mg++ procedure. Biochem Biophys Res Commun 1978; 84:786-93. [PMID: 718717 DOI: 10.1016/0006-291x(78)90773-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Merski J, Daskal Y, Busch H. Comparison of adriamycin-induced nucleolar segregation in skeletal muscle, cardiac muscle, and liver cells. Cancer Treat Rep 1978; 62:771-8. [PMID: 657162] [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: 12/23/2022]
Abstract
Male Sprague-Dawley rats were treated with either 2.5, 3.5, or 5.0 mg/kg of adriamycin by iv injection. After 1 or 3 hours of treatment, samples of liver, cardiac muscle, and skeletal muscle cells were examined by electron microscopy. The changes in ultrastructure observed in these tissues after the first hour included nucleolar segregation and altered distribution of the perinucleolar chromatin. However, no alterations in the ultrastructure of either the nucleus or cytoplasm were observed in tissues examined 3 hours after a 5-mg/kg dose of adriamycin. The doses at which nucleolar alterations occurred varied between tissues. In skeletal and cardiac muscle cells, marked alterations in nucleolar ultrastructure were observed at doses of 3.5 and 5.0 mg/kg of adriamycin. Liver cell nucleoli, however, exhibited few structural aberrations at these doses. The similarities in response of skeletal and cardiac muscle suggest that ultrastructural analysis of skeletal muscle biopsies may be useful in evaluating adriamycin cardiotoxicity.
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Daskal Y, Woodard C, Crooke ST, Busch H. Comparative ultrastructural studies of nucleoli of tumor cells treated with adriamycin and the newer anthracyclines, carminomycin and marcellomycin. Cancer Res 1978; 38:467-73. [PMID: 202387] [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: 12/13/2022]
Abstract
This study was designed to determine the effects of several antitimor anthracyclines, including Adriamycin and its analogs, carminomycin and marcellomycin, on the ultrastructure of nucleoli of Novikoff hepatoma cells. Adriamycin and carminomycin, which are structurally related, induce nucleolar segregation following the formation of conspicuous fibrillar centers. Marcellomycin did not induce formation of nucleolar fibrillar centers. Instead, numerous microspherules formed following treatment with marcellomycin; later complete nucleolar segregation developed. The microspherules were observed to be in various stages of extrusion from the nucleolar body. This microspherule "migration" appeared to be both time and drug concentration dependent. These results show that the rate and extent of nucleolar ultrastructural aberration may be related to structural differences of the various anthracyclines.
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Daskal Y, Ballal NR, Busch H. Ultrastructural and biochemical studies on the isolation of nucleolar chromatin from Novikoff hepatoma cell nucleoli. Exp Cell Res 1978; 111:153-65. [PMID: 413720 DOI: 10.1016/0014-4827(78)90245-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Smetana K, Merski J, Daskal Y, Busch RK, Busch H. Effects of adriamycin and actinomycin D on nucleolar morphology: A simple biologic assay. Cancer Treat Rep 1977; 61:1253-7. [PMID: 73415] [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: 12/12/2022]
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Daskal Y, Ballal NR, Busch H. Scanning electron microscopy and biochemical studies on reconstituted and native chromatin fractions of Novikoff hepatoma ascites cells. Exp Cell Res 1977; 108:301-9. [PMID: 891642 DOI: 10.1016/s0014-4827(77)80037-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Smetana K, Daskal Y, Gyorkey F, Gyorkey P, Lehane DE, Rudolph AH, Busch H. Nuclear and nucleolar ultrastructure of Sézary cells. Cancer Res 1977; 37:2036-42. [PMID: 140762] [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: 12/13/2022]
Abstract
Sézary cells were studied in the peripheral blood and characteristic skin lesions of the Sézary syndrome and mycosis fungoides by transmission electron microscopy to obtain more information on their nuclear and nucleolar ultrastructure. Sézary cells contain nucleoli with nucleolonemas or ring-shaped nucleoli similar to those of lymphoblasts and mature lymphocytes. "Maturation asynchrony" of the nucleolus and cytoplasm was evident in some cells that contain large numbers of ribosomes and ring-shaped nucleoli and in other cells that contain nucleoi with nucleolonemas and few ribosomes. The maturation asynchrony of the nucleolus and the cytoplasm, the presence of mitochondrion-like inclusion bodies in the nucleus, and fusion of mitochondria with the nucleus in Sézary cells are ultrastructural abnormalities of this neoplastic lymphocytic variant. The presence of the intranuclear "mitochondrion-like" inclusion body and nuclear rodlets in Sézary cells were exceptional findings.
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Daskal Y, Mace ML, Wray W, Busch H. Use of direct current sputtering for improved visualization of chromosome topology by scanning electron microscopy. Exp Cell Res 1976; 100:204-12. [PMID: 819280 DOI: 10.1016/0014-4827(76)90343-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Daskal Y, Gyorkey F, Gyorkey P, Busch H. Ultrastructural study of pulmonary bleomycin toxicity. Cancer Res 1976; 36:1267-72. [PMID: 56994] [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: 12/12/2022]
Abstract
Ultrastructural manifestations of bleomycin A2 toxicity in the human lung were studied in three patients. In addition to the appearance of nucleolar fibrillar centers, an increase in membranous, beaded, and granular nuclear bodies was found in nuclei of type 1, type 2 alveolar epithelial cells, and interstitial fibroblasts in all treated patients. Few such nuclear bodies were found in specimens of untreated patients.
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Daskal Y, Crooke ST, Smetana K, Busch H. Ultrastructural study of the effect of bleomycin A2 on the nucleolus and its possibly related cytoplasmic constituents in Novikoff hepatoma cells. Cancer Res 1975; 35:374-81. [PMID: 45894] [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: 12/12/2022]
Abstract
Treatment of Novikoff hepatoma ascites cells with bleomycin A2, in vivo as well as in vitro, in varying doses produced marked alterations in nucleolar and cytoplasmic ultrastructural organization. A series of changes occur including formation of fibrillar centers, fragmentation of fibrillar nucleolar elements, appearance of microspherules, and the loss of fibrillar elements from these nucleoli. A bleomycin concentration of 10 mug/ml in vitro produced an increased number of fibrillar centers with well-defined nucleolonemas. At a concentration of 50 mug/ml, there was an increase in number and fragmentation of these fibrillar centers and many microspherules were found throughout the nucleolus. Approximately one-fourth of the cells contained cytoplasmic fibrillar bodies and amorphous fibrous tufts around the nuclear envelope. At a bleomycin concentration of 100 mug/ml, the nucleoli contained more granular elements and numerous microspherules. Almost 90% of the cells contained cytoplasmic fibrillar bodies. The effects of bleomycin in vivo (10 mg/kg) closely resemble those found in vitro with concentrations of 50 and 100 mug/ml.
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Daskal Y, Prestayko AW, Busch H. Ultrastructural and biochemical studies of the isolated fibrillar component of nucleoli from Novikoff hepatoma ascites cells. Exp Cell Res 1974; 88:1-14. [PMID: 4370689 DOI: 10.1016/0014-4827(74)90611-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Busch RK, Spohn WH, Daskal Y, Busch H. Antibodies produced by immunization of goats with 40S ribosomal subunits from Novikoff hepatoma ascites cells. Proc Soc Exp Biol Med 1972; 140:1030-3. [PMID: 4339060 DOI: 10.3181/00379727-140-36605] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Koshiba K, Thirumalachary C, Daskal Y, Busch H. Ultrastructural and biochemical studies on ribonucleoprotein particles from isolated nucleoli of thioacetamide-treated rat liver. Exp Cell Res 1971; 68:235-46. [PMID: 4330914 DOI: 10.1016/0014-4827(71)90147-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Busch H, Busch RK, Spohn WH, Wikman J, Daskal Y. Antibodies produced by immunization of goats with 60S ribosomal subunits from Novikoff hepatoma ascites cells. Proc Soc Exp Biol Med 1971; 137:1470-8. [PMID: 4109623 DOI: 10.3181/00379727-137-35812] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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