de la Pena-Lefebvre P. Garcia, Chanseaud Y., Tamby M. C., Reinbolt J., Batteux F., Allanore Y., Kahan A., Meyer O., Benveniste O., Boyer O., Guillevin L., Boissier M. C., Mouthon L.
IgG reactivity with a 100-kDa tissue and endothelial cell antigen identified as topoisomerase 1 distinguishes between limited and diffuse systemic sclerosis patients Journal Article
In: Clin Immunol, vol. 111, no. 3, pp. 241-51, 2004, (1521-6616 Journal Article).
Abstract | BibTeX | Tags: Aged, Assay, Autoantibodies/*analysis, Blotting, Cells/*immunology, Centromere/immunology, DNA, EHRESMANN, Electrophoresis, Endothelial, Enzyme-Linked, Female, G/analysis, Gel, Gov't, Human, I/*immunology, Immunoglobulin, Immunosorbent, M/analysis, Male, Middle, Non-U.S., Polyacrylamide, Scleroderma, Support, Systemic/*immunology, Topoisomerases, Type, Western
@article{,
title = {IgG reactivity with a 100-kDa tissue and endothelial cell antigen identified as topoisomerase 1 distinguishes between limited and diffuse systemic sclerosis patients},
author = { P. Garcia de la Pena-Lefebvre and Y. Chanseaud and M. C. Tamby and J. Reinbolt and F. Batteux and Y. Allanore and A. Kahan and O. Meyer and O. Benveniste and O. Boyer and L. Guillevin and M. C. Boissier and L. Mouthon},
year = {2004},
date = {2004-01-01},
journal = {Clin Immunol},
volume = {111},
number = {3},
pages = {241-51},
abstract = {We have analyzed antibody (Ab) reactivities of patients with limited systemic sclerosis (SSc) and anti-centromere Ab, patients with diffuse SSc and anti-topoisomerase 1 (anti-topo 1) Ab, patients with diffuse SSc without anti-topo 1 or anti-centromere Ab and age- and gender-matched healthy controls with normal human tissue and endothelial cell (EC) antigens. IgG reactivities with tissue antigens differed significantly between patients with anti-topo 1 Ab and patients with anti-centromere Ab. One 100-kDa band identified as topoisomerase 1 in macrovascular and microvascular EC extracts was recognized by IgG from patients with anti-topo 1 Ab and 50% of patients without specific Ab. IgG from patients with limited SSc and anti-centromere Ab, but not those of other patients or controls specifically recognized a 80-kDa band only in microvascular EC. Our results indicate that Ab from patients with limited or diffuse SSc with or without anti-topo 1 Ab exhibit specific and mutually exclusive reactivity patterns.},
note = {1521-6616
Journal Article},
keywords = {Aged, Assay, Autoantibodies/*analysis, Blotting, Cells/*immunology, Centromere/immunology, DNA, EHRESMANN, Electrophoresis, Endothelial, Enzyme-Linked, Female, G/analysis, Gel, Gov't, Human, I/*immunology, Immunoglobulin, Immunosorbent, M/analysis, Male, Middle, Non-U.S., Polyacrylamide, Scleroderma, Support, Systemic/*immunology, Topoisomerases, Type, Western},
pubstate = {published},
tppubtype = {article}
}
Zukiel R., Nowak S., Barciszewska A. M., Gawronska I., Keith G., Barciszewska M. Z.
A simple epigenetic method for the diagnosis and classification of brain tumors Journal Article
In: Mol Cancer Res, vol. 2, no. 3, pp. 196-202, 2004, (1541-7786 Journal Article).
Abstract | BibTeX | Tags: *DNA, *Epigenesis, 5-Methylcytosine/*analysis, Adult, Aged, and, Brain, Chromatography, DNA, Female, Genetic, Gov't, Human, KEITH, Layer, Male, Methylation, Middle, Neoplasm/*chemistry/*metabolism, Neoplasms/*classification/*diagnosis/genetics/pathology, Non-U.S., Oxidative, oxygen, Reactive, Sensitivity, Species/metabolism, Specificity, Stress, Support, Thin
@article{,
title = {A simple epigenetic method for the diagnosis and classification of brain tumors},
author = { R. Zukiel and S. Nowak and A. M. Barciszewska and I. Gawronska and G. Keith and M. Z. Barciszewska},
year = {2004},
date = {2004-01-01},
journal = {Mol Cancer Res},
volume = {2},
number = {3},
pages = {196-202},
abstract = {The new, simple, and reliable method for the diagnosis of brain tumors is described. It is based on a TLC quantitative determination of 5-methylcytosine (m(5)C) in relation to its damage products of DNA from tumor tissue. Currently, there is evidence that oxidative stress through reactive oxygen species (ROS) plays an important role in the etiology and progression of several human diseases. Oxidative damage of DNA, lipids, and proteins is deleterious for the cell. m(5)C, along with other basic components of DNA, is the target for ROS, which results in the appearance of new modified nucleic acid bases. If so, m(5)C residue constitutes a mutational hotspot position, whether it occurs within a nucleotide sequence of a structural gene or a regulatory region. Here, we show the results of the analysis of 82 DNA samples taken from brain tumor tissues. DNA was isolated and hydrolyzed into nucleotides, which, after labeling with [gamma-(32)P]ATP, were separated on TLC. Chromatograms were evaluated using PhosphorImager and the amounts of 5-methyldeoxycytosine (m(5)dC) were calculated as a ratio (R) of m(5)dC to m(5)dC + deoxycytosine + deoxythymidine spot intensities. The R value could not only be a good diagnostic marker for brain tumors but also a factor differentiating low-grade and high-grade gliomas. Therefore, DNA methylation pattern might be a useful tool to give a primary diagnosis of a brain tumor or as a marker for the early detection of the relapse of the disease. This method has several advantages over those existing nowadays.},
note = {1541-7786
Journal Article},
keywords = {*DNA, *Epigenesis, 5-Methylcytosine/*analysis, Adult, Aged, and, Brain, Chromatography, DNA, Female, Genetic, Gov't, Human, KEITH, Layer, Male, Methylation, Middle, Neoplasm/*chemistry/*metabolism, Neoplasms/*classification/*diagnosis/genetics/pathology, Non-U.S., Oxidative, oxygen, Reactive, Sensitivity, Species/metabolism, Specificity, Stress, Support, Thin},
pubstate = {published},
tppubtype = {article}
}
Popiela A., Gabrys M. S., Rabczynski J., Panszczyk M., Keith G., Baranowski W.
[Estimation of DNA methylation level in endometrial cancer tissues] Journal Article
In: Ginekol Pol, vol. 73, no. 11, pp. 966-9, 2002, (0017-0011 Journal Article).
Abstract | BibTeX | Tags: *DNA, 80, Abstract, Adenocarcinoma/chemistry/*genetics, Aged, and, Case-Control, Endometrial, English, Expression, Female, Gene, Human, Hyperplasia/genetics, Methylation, Middle, Neoplasms/chemistry/*genetics, Neoplastic, over, Regulation, Studies
@article{,
title = {[Estimation of DNA methylation level in endometrial cancer tissues]},
author = { A. Popiela and M. S. Gabrys and J. Rabczynski and M. Panszczyk and G. Keith and W. Baranowski},
year = {2002},
date = {2002-01-01},
journal = {Ginekol Pol},
volume = {73},
number = {11},
pages = {966-9},
abstract = {OBJECTIVES: A level of DNA methylation plays an important role in regulation of cellular gene's expression. Estimation of DNA methylation level in endometrial neoplastic tissues compared to normal endometrial samples was the aim of this study. DESIGN: It was to be shown, that changes in methylation rate in promotory regions could lead to carcinogenesis in particular cell. Authors describe an analysis of DNA methylation level in endometrial cancer tissues compared to DNA methylation level in normal or hyperplastic endometrium. MATERIAL AND METHODS: Endometrial samples from 88 women were collected. 56 of them were classified as adenocarcinoma, 20 as hyperplastic changes, 12 as normal endometrium-control group. DNA was isolated from tissues and than prepared to pm5dC and pdC. Than we performed a statistical analysis of results. RESULTS: The median DNA methylation level was significantly higher in neoplastic tissues than in normal endometrium. There was no difference between DNA methylation level between normal endometrium and hyperplastic changes. CONCLUSIONS: Authors conclude that neoplastic endometrial tissues show high DNA methylation rate compared to normal or hyperplastic endometrium.},
note = {0017-0011
Journal Article},
keywords = {*DNA, 80, Abstract, Adenocarcinoma/chemistry/*genetics, Aged, and, Case-Control, Endometrial, English, Expression, Female, Gene, Human, Hyperplasia/genetics, Methylation, Middle, Neoplasms/chemistry/*genetics, Neoplastic, over, Regulation, Studies},
pubstate = {published},
tppubtype = {article}
}
Popiela A., Gabrys M. S., Rabczynski J., Panszczyk M., Keith G., Baranowski W.
[Estimation of DNA methylation level in nonendometrial uterus malignancies] Journal Article
In: Ginekol Pol, vol. 73, no. 11, pp. 962-5, 2002, (0017-0011 Journal Article).
Abstract | BibTeX | Tags: *DNA, 80, Abstract, Age, Aged, and, Case-Control, English, Expression, Factors, Female, Gene, Human, Mesodermal/genetics/*metabolism, Methylation, Middle, Mixed, Neoplasms/genetics/*metabolism, Neoplastic, over, Regulation, silencing, Studies, tumor, Uterine
@article{,
title = {[Estimation of DNA methylation level in nonendometrial uterus malignancies]},
author = { A. Popiela and M. S. Gabrys and J. Rabczynski and M. Panszczyk and G. Keith and W. Baranowski},
year = {2002},
date = {2002-01-01},
journal = {Ginekol Pol},
volume = {73},
number = {11},
pages = {962-5},
abstract = {OBJECTIVES: Rebuilding of genome structure leads to many pathological states including neoplastic malignancies. Rebuilding often occurs as a process caused by disturbances in gene silencing mechanism. DNA methylation pattern is one of the most important mechanisms connected to gene's silencing. Estimation of DNA methylation level in nonendometrial uterine neoplastic tissues compared to normal endometrial samples was the aim of this study. DESIGN: It was to be shown, that changes in methylation rate in promotory regions could lead to carcinogenesis in particular cell. Authors describe an analysis of DNA methylation level in nonendometrial neoplastic uterine tissues compared to DNA methylation level in normal endometrium. MATERIALS AND METHODS: Tissue samples from 9 women with tumor mixtus mesodermalis were collected. 12 samples were normal endometrium-control group. DNA was isolated from tissues and than we performed an estimation of DNA methylation levels. Than we performed a statistical analysis of results. RESULTS: The median DNA methylation level was significantly higher in neoplastic tissues than in normal endometrium. CONCLUSIONS: Authors conclude, that DNA methylation level is higher in neoplastic tissues, but does not correlate with clinical stage of the disease.},
note = {0017-0011
Journal Article},
keywords = {*DNA, 80, Abstract, Age, Aged, and, Case-Control, English, Expression, Factors, Female, Gene, Human, Mesodermal/genetics/*metabolism, Methylation, Middle, Mixed, Neoplasms/genetics/*metabolism, Neoplastic, over, Regulation, silencing, Studies, tumor, Uterine},
pubstate = {published},
tppubtype = {article}
}
Postawski K., Olech-Fudali E., Jakowicki J. A., Korobowicz E., Keith G., Baranowski W.
[Overall genomic DNA methylation in relation to estrogen] Journal Article
In: Ginekol Pol, vol. 71, no. 9, pp. 1206-11, 2000, (0017-0011 Journal Article).
Abstract | BibTeX | Tags: 80, Abstract, Aged, and, Biopsy, DNA, English, Estrogen/*metabolism, Female, Gov't, Human, Methylases/metabolism, Methylation, Middle, modification, Neoplasms/*metabolism/*pathology, Non-U.S., over, Progesterone/*metabolism, Receptors, Support, Uterine, Uterus/*metabolism/pathology
@article{,
title = {[Overall genomic DNA methylation in relation to estrogen]},
author = { K. Postawski and E. Olech-Fudali and J. A. Jakowicki and E. Korobowicz and G. Keith and W. Baranowski},
year = {2000},
date = {2000-01-01},
journal = {Ginekol Pol},
volume = {71},
number = {9},
pages = {1206-11},
abstract = {Overall genomic DNA methylation was analyzed using enzymatic digestion into nucleotides, 32P postlabeling, two-dimensional thin-layer chromatography on cellulose plates and phosphobioimaging quantitation, in relation to immunohistochemically measured estrogen (ER) and progesterone receptor (PR) status of 15 uterine cancers. Mean 5-methyldeoxycytosine (m5dC) content did not differ between ER-positive and ER-negative neoplasms. Highest values of m5dC were noted both in ER-negative and ER-positive tumors. Additionally, there was no low DNA methylation in ER negative uterine cancer tissues. Decrease of the overall genomic DNA methylation could be related to the increase of ER/PR ratio, however it was not significant in our investigation. The potential role of steroid receptors status in uterine cancer tissue is discussed.},
note = {0017-0011
Journal Article},
keywords = {80, Abstract, Aged, and, Biopsy, DNA, English, Estrogen/*metabolism, Female, Gov't, Human, Methylases/metabolism, Methylation, Middle, modification, Neoplasms/*metabolism/*pathology, Non-U.S., over, Progesterone/*metabolism, Receptors, Support, Uterine, Uterus/*metabolism/pathology},
pubstate = {published},
tppubtype = {article}
}
Baranowski W., Dirheimer G., Jakowicki J. A., Keith G.
Deficiency of queuine, a highly modified purine base, in transfer RNAs from primary and metastatic ovarian malignant tumors in women Journal Article
In: Cancer Res, vol. 54, no. 16, pp. 4468-71, 1994, (0008-5472 Journal Article).
Abstract | BibTeX | Tags: &, Adolescent, Adult, Aged, derivatives/analysis, Female, Gov't, Guanine/*analogs, Human, Middle, Neoplasm/*chemistry, Neoplasms/*chemistry/pathology, Non-U.S., Ovarian, RNA, Support, Transfer/*chemistry
@article{,
title = {Deficiency of queuine, a highly modified purine base, in transfer RNAs from primary and metastatic ovarian malignant tumors in women},
author = { W. Baranowski and G. Dirheimer and J. A. Jakowicki and G. Keith},
year = {1994},
date = {1994-01-01},
journal = {Cancer Res},
volume = {54},
number = {16},
pages = {4468-71},
abstract = {The tRNAs from rapidly growing tissues, particularly from neoplasia, often exhibit queuine deficiency. In order to check whether different kinds of ovarian tumors display queuine deficiencies we have analyzed tRNA samples from 16 ovarian malignancies. The tRNAs from histologically normal myometrium (4 samples) and myoma (6 samples) were taken as healthy tissue and benign tumor references. Queuine deficiency was determined by an exchange assay using [8-3H]guanine and tRNA:guanine transglycosylase from Escherichia coli. The mean values of queuine deficiencies in tRNAs were: 10.95 +/- 2.21 (SD) pmol/A260 in gonadal and germ cell tumors (5 cases); 23.75 +/- 7.89 pmol/A260 in primary epithelial tumors (9 cases); and 34.58 +/- 7.18 pmol/A260 in metastatic tumors (2 cases). These values displayed statistically significant differences (P = 0.0003, Kruskal-Wallis test). The queuine deficiencies in tRNAs significantly increased when moving from well-differentiated through moderately differentiated to poorly differentiated tumors, with the highest values found in poorly differentiated metastatic tumors (P = 0.0002, Kruskal-Wallis test). Queuine deficiency determination in tRNAs is proposed as a factor for clinical outcome prognosis of ovarian malignancies.},
note = {0008-5472
Journal Article},
keywords = {&, Adolescent, Adult, Aged, derivatives/analysis, Female, Gov't, Guanine/*analogs, Human, Middle, Neoplasm/*chemistry, Neoplasms/*chemistry/pathology, Non-U.S., Ovarian, RNA, Support, Transfer/*chemistry},
pubstate = {published},
tppubtype = {article}
}
Baranowski W., Tomaszewski J., Keith G.
[Methylation of DNA in tissue of ovarian malignant tumors in women] Journal Article
In: Ginekol Pol, vol. 64, no. 4, pp. 169-73, 1993, (0017-0011 Journal Article).
Abstract | BibTeX | Tags: Abstract, Adult, Aged, Carcinoma/genetics, Cell, DNA, English, Female, Human, Methylation, Middle, Neoplasm/*metabolism, Neoplasms/*genetics, Ovarian, Sertoli, Tumor/genetics
@article{,
title = {[Methylation of DNA in tissue of ovarian malignant tumors in women]},
author = { W. Baranowski and J. Tomaszewski and G. Keith},
year = {1993},
date = {1993-01-01},
journal = {Ginekol Pol},
volume = {64},
number = {4},
pages = {169-73},
abstract = {DNA methylation level from woman ovarian malignant tissues was investigated by 32P postlabeling of the single nucleotides, separation on TLC with followed autoradiography and Cerenkov counting. Slight differences in DNA methylation extent were found in malignant ovarian tumors as compared to normal myometrium and benign uterine tumor [myomas]. Lowest level of m5dC in relation to C and also in relation to total DNA was found in carcinoma embryonal tissue whereas maximal DNA methylation level was obtained in folliculoma tissue. This preliminary report needs further investigation of particularly genes methylation.},
note = {0017-0011
Journal Article},
keywords = {Abstract, Adult, Aged, Carcinoma/genetics, Cell, DNA, English, Female, Human, Methylation, Middle, Neoplasm/*metabolism, Neoplasms/*genetics, Ovarian, Sertoli, Tumor/genetics},
pubstate = {published},
tppubtype = {article}
}