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Mansouri S, Suppiah S, Mamatjan Y, Paganini I, Liu JC, Karimi S, Patil V, Nassiri F, Singh O, Sundaravadanam Y, Rath P, Sestini R, Gensini F, Agnihotri S, Blakeley J, Ostrow K, Largaespada D, Plotkin SR, Stemmer-Rachamimov A, Ferrer MM, Pugh TJ, Aldape KD, Papi L, Zadeh G. Correction to: Epigenomic, genomic, and transcriptomic landscape of schwannomatosis. Acta Neuropathol 2021; 141:117. [PMID: 33112994 DOI: 10.1007/s00401-020-02241-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sheila Mansouri
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | - Suganth Suppiah
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | - Yasin Mamatjan
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | - Irene Paganini
- The Department of Experimental and Clinical, Medical Genetics Unit, Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Jeffrey C Liu
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | - Shirin Karimi
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | - Vikas Patil
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | - Farshad Nassiri
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | - Olivia Singh
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | | | - Prisni Rath
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Roberta Sestini
- The Department of Experimental and Clinical, Medical Genetics Unit, Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Francesca Gensini
- The Department of Experimental and Clinical, Medical Genetics Unit, Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Sameer Agnihotri
- Department of Neurological Surgery, Children's Hospital, University of Pittsburgh, Pittsburgh, PA, USA
| | | | | | | | - Scott R Plotkin
- Department of Pathology, Massachusetts General Hospital, Boston, MA, USA
| | | | - Marcela Maria Ferrer
- División de Neurocirugía and División Genética, Hospital de Clínicas "José de San Martín", Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Trevor J Pugh
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Kenneth D Aldape
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Laura Papi
- The Department of Experimental and Clinical, Medical Genetics Unit, Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy.
| | - Gelareh Zadeh
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada.
- Division of Neurosurgery, Toronto Western Hospital, Toronto, Canada.
- Krembil Brain Institute, Toronto, Canada.
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Mansouri S, Suppiah S, Mamatjan Y, Paganini I, Liu JC, Karimi S, Patil V, Nassiri F, Singh O, Sundaravadanam Y, Rath P, Sestini R, Gensini F, Agnihotri S, Blakeley J, Ostrow K, Largaespada D, Plotkin SR, Stemmer-Rachamimov A, Ferrer MM, Pugh TJ, Aldape KD, Papi L, Zadeh G. Epigenomic, genomic, and transcriptomic landscape of schwannomatosis. Acta Neuropathol 2021; 141:101-116. [PMID: 33025139 PMCID: PMC7785562 DOI: 10.1007/s00401-020-02230-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/23/2020] [Accepted: 09/23/2020] [Indexed: 02/08/2023]
Abstract
Schwannomatosis (SWNTS) is a genetic cancer predisposition syndrome that manifests as multiple and often painful neuronal tumors called schwannomas (SWNs). While germline mutations in SMARCB1 or LZTR1, plus somatic mutations in NF2 and loss of heterozygosity in chromosome 22q have been identified in a subset of patients, little is known about the epigenomic and genomic alterations that drive SWNTS-related SWNs (SWNTS-SWNs) in a majority of the cases. We performed multiplatform genomic analysis and established the molecular signature of SWNTS-SWNs. We show that SWNTS-SWNs harbor distinct genomic features relative to the histologically identical non-syndromic sporadic SWNs (NS-SWNS). We demonstrate the existence of four distinct DNA methylation subgroups of SWNTS-SWNs that are associated with specific transcriptional programs and tumor location. We show several novel recurrent non-22q deletions and structural rearrangements. We detected the SH3PXD2A-HTRA1 gene fusion in SWNTS-SWNs, with predominance in LZTR1-mutant tumors. In addition, we identified specific genetic, epigenetic, and actionable transcriptional programs associated with painful SWNTS-SWNs including PIGF, VEGF, MEK, and MTOR pathways, which may be harnessed for management of this syndrome.
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Affiliation(s)
- Sheila Mansouri
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | - Suganth Suppiah
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | - Yasin Mamatjan
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | - Irene Paganini
- The Department of Experimental and Clinical, Medical Genetics Unit, Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Jeffrey C Liu
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | - Shirin Karimi
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | - Vikas Patil
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | - Farshad Nassiri
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | - Olivia Singh
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada
| | | | - Prisni Rath
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Roberta Sestini
- The Department of Experimental and Clinical, Medical Genetics Unit, Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Francesca Gensini
- The Department of Experimental and Clinical, Medical Genetics Unit, Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Sameer Agnihotri
- Department of Neurological Surgery, Children's Hospital, University of Pittsburgh, Pittsburgh, PA, USA
| | | | | | | | - Scott R Plotkin
- Department of Pathology, Massachusetts General Hospital, Boston, MA, USA
| | | | - Marcela Maria Ferrer
- División de Neurocirugía and División Genética, Hospital de Clínicas "José de San Martín", Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Trevor J Pugh
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Kenneth D Aldape
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Laura Papi
- The Department of Experimental and Clinical, Medical Genetics Unit, Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Gelareh Zadeh
- Princess Margaret Cancer Center and MacFeeters-Hamilton Center for Neuro-Oncology Research, University Health Network, Wilkins Family Chair in Brain Tumor Research, 14-701 PMCRT, 101 College St, Toronto, ON, M5G 1L7, Canada.
- Division of Neurosurgery, Toronto Western Hospital, Toronto, Canada.
- Krembil Brain Institute, Toronto, Canada.
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Mansouri S, Suppiah S, Mamatjan Y, Paganini I, Liu J, Karimi S, Patil V, Nassiri F, Singh O, Sundaravadanam Y, Rath P, Sestini R, Gensini F, Agnihotri S, Blakeley J, Ostrow K, Largaespada D, Plotkin S, Stemmer-Rachamimov A, Ferrer MM, Pugh T, Aldape K, Papi L, Zadeh G. EPCO-04. GENOMIC AND EPIGENOMIC HALLMARKS OF SCHWANNOMATOSIS SCHWANNOMAS. Neuro Oncol 2020. [DOI: 10.1093/neuonc/noaa215.283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Schwannomatosis (SWNTS) is a genetic cancer predisposition syndrome that manifests as multiple and often, painful neuronal tumors called schwannomas (SWNs). Very little is known about the epigenomic and genomic alterations in SWNTS related SWNs (SWNTS-SWNs) other than germline mutations in SMARCB1 and LZTR1 plus somatic mutations in NF2 and loss of heterozygosity in chromosome 22q. Herein, we have comprehensively established the specific molecular signatures of SWNTS-SWNs. We found that tumor anatomic location was associated with pain and distinct DNA methylation and transcriptional signatures. DNA sequencing revealed several novel non-22q deletions, specifically in LZTR1-mutant cases. Whole-genome sequencing identified novel recurrent structural rearrangements. Further, chromosomal aberrations in SWNTS-SWNs were accompanied by increased transcription of mismatch repair genes. Our transcriptome analysis detected the SH3PXD2A-HTRA1 gene fusion in SWNTS-SWNs, more commonly in LZTR1-mutant tumors. In addition, we identified the specific genetic, epigenetic, and transcriptional hallmarks of painful SWNs that may be harnessed to develop new treatments for this debilitating syndrome.
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Affiliation(s)
| | - Suganth Suppiah
- MacFeeters Hamilton Centre for Neuro-Oncology Research, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | | | | | - Jeff Liu
- University Health Network, Toronto, ON, Canada
| | | | - Vikas Patil
- Princess Margaret Cancer Center, Toronto, ON, Canada
| | | | | | | | - Prisni Rath
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | | | | | | | | | | | | | | | | | | | - Trevor Pugh
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Kenneth Aldape
- National Cancer Institute, National Institute of Health, Bethesda, MD, USA
| | | | - Gelareh Zadeh
- Princess Margaret Cancer Center, Toronto, ON, Canada
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Rodrigues JE, Ferrer MM, Cunha TR, Costa RC, Sambrano JR, Rodrigues AD, Pizani PS. First-principles calculations and Raman scattering evidence for local symmetry lowering in rhombohedral ilmenite: temperature- and pressure-dependent studies. J Phys Condens Matter 2018; 30:485401. [PMID: 30403190 DOI: 10.1088/1361-648x/aae803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
ATiO3-type materials may exist in two different crystalline forms: the perovskite and ilmenite. While many papers have devoted their attention to evaluating the structural properties of the perovskite phase, the structural stability of the ilmenite one still remains unsolved. Here, we present our results based on the lattice dynamics and first-principles calculations (density functional theory) of the CdTiO3 ilmenite phase, which are confronted with experimental data obtained through micro Raman spectroscopy that is a very good tool to probe the local crystal structure. Additional Raman bands, which are not foreseen from group-theory for the ilmenite rhombohedral structure, appeared in both low temperature (under vacuum condition) and high-pressure (at room temperature) spectra. The behavior can be explained by considering the local loss of inversion symmetry operation which reduces the overall space group from [Formula: see text] ([Formula: see text]) to [Formula: see text] ([Formula: see text]). Our results can also be extended to other ilmenite-type compositions.
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Affiliation(s)
- J E Rodrigues
- Optical Spectroscopy and Raman Scattering Research Group, Federal University of São Carlos, São Carlos SP 13565-905, Brazil
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Bracco Gartner T, Deddens JC, Mol EA, Ferrer MM, Van Laake LW, Bouten CVC, Khademhosseini A, Suyker WJL, Sluijter JPG, Hjortnaes J. P142Anti-fibrotic effects of cardiac progenitor cells in a 3D-model of human cardiac fibrosis. Cardiovasc Res 2018. [DOI: 10.1093/cvr/cvy060.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Bracco Gartner
- University Medical Center Utrecht, Department of Cardiothoracic Surgery, Utrecht, Netherlands
| | - J C Deddens
- University Medical Center Utrecht, Department of Cardiology, Utrecht, Netherlands
| | - E A Mol
- University Medical Center Utrecht, Experimental Cardiology Laboratory, Utrecht, Netherlands
| | - M M Ferrer
- University Medical Center Utrecht, Experimental Cardiology Laboratory, Utrecht, Netherlands
| | - L W Van Laake
- University Medical Center Utrecht, Department of Cardiology, Utrecht, Netherlands
| | - CVC Bouten
- Eindhoven University of Technology, Department of Soft Tissue Biomechanics and Tissue Engineering, Eindhoven, Netherlands
| | - A Khademhosseini
- Massachusetts Institute of Technology, Division of Health Sciences and Technology, Cambridge, United States of America
| | - WJL Suyker
- University Medical Center Utrecht, Department of Cardiothoracic Surgery, Utrecht, Netherlands
| | - JPG Sluijter
- University Medical Center Utrecht, Experimental Cardiology Laboratory, Utrecht, Netherlands
| | - J Hjortnaes
- University Medical Center Utrecht, Department of Cardiothoracic Surgery, Utrecht, Netherlands
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Gouveia AF, Sczancoski JC, Ferrer MM, Lima AS, Santos MRMC, Li MS, Santos RS, Longo E, Cavalcante LS. Experimental and theoretical investigations of electronic structure and photoluminescence properties of β-Ag2MoO4 microcrystals. Inorg Chem 2014; 53:5589-99. [PMID: 24840935 DOI: 10.1021/ic500335x] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this paper, we investigate a correlation between theoretical calculations and experimental data to explain the electronic structure and optical properties of silver molybdate (β-Ag2MoO4) microcrystals synthesized by the microwave-assisted hydrothermal method. X-ray diffraction, Rietveld refinement, and micro-Raman spectroscopy confirmed that these microcrystals crystallize in a spinel-type cubic structure. Field-emission scanning electron microscopy images revealed that the processing temperatures influence in the final shape of microcrystals. Optical properties were analyzed by ultraviolet-visible diffuse reflectance spectroscopy; the increase in the optical band gap energy (Egap) (from 3.24 to 3.31 eV) with processing temperature is associated with the reduction of intermediary energy levels. First-principles quantum mechanical calculations based on the density functional theory at the B3LYP level were conducted. The calculated band structure revealed an indirect Egap of approximately 4.00 and 3.34 eV for the β-Ag2MoO4 without and with the formation of defects, respectively. Theoretical calculations based on density of states and electron density maps were employed to understand the polarization phenomenon induced by structural defects in the β-Ag2MoO4 crystals. Finally, photoluminescence properties at room temperature of β-Ag2MoO4 microcrystals were explained by the charge-transfer mechanism involving tetrahedral [MoO4] clusters.
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Affiliation(s)
- A F Gouveia
- LIEC- Universidade Federal de São Carlos , P.O. Box 676, 13565-905, São Carlos-SP, Brazil
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Ferrer MM, Navarra T. Professional boundaries: clarifying roles and goals. Cancer Pract 1994; 2:311-2. [PMID: 7858659] [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: 01/27/2023]
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Coates SR, Harris AJ, Parkes DL, Smith CM, Liu HL, Akita RW, Ferrer MM, Sampson EK, Brandis JW, Sliwkowski MX. Serological evaluation of Escherichia coli-expressed human T-cell leukemia virus type I env, gag p24, and tax proteins. J Clin Microbiol 1990; 28:1139-42. [PMID: 2199486 PMCID: PMC267892 DOI: 10.1128/jcm.28.6.1139-1142.1990] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Three proteins (env, gag, and tax) encoded by the human T-cell leukemia virus type I (HTLV-I) genome were cloned and expressed in Escherichia coli. The env protein contained a substantial part of the gp46 domain and a majority of the p21e domain. The gag protein contained all of p24 and portions of p19 and p15. In addition to these two structural proteins, a full-length tax (p40X) construct was obtained. All three recombinant proteins were purified to near homogeneity. When used in an immunoblot assay, the three recombinant proteins detected antibodies in more HTLV-I antibody-positive patient sera than did the corresponding native proteins. Antibodies to at least two of these three different gene products were detected in 98.4% of adult T-cell leukemia patients, 100% of HTLV-I-associated myelopathy patients, 97.4% of asymptomatic carriers, and 94% of uncharacterized HTLV-I-positive patients. Antibody to recombinant tax was found in 4.9% of adult T-cell leukemia patients, whereas antibody to recombinant env could not be detected. These recombinant proteins from three different gene products may be useful in detecting or confirming the presence of antibodies to HTLV-I.
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Affiliation(s)
- S R Coates
- Triton Biosciences Inc., Alameda, California 94501
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Medrano EE, Burrone OR, Ferrer MM, Cafferata EG, Algranati ID. A novel mechanism of resistance to alpha-difluoromethylornithine induced by cycloheximide. Growth with abnormally low levels of putrescine and spermidine. FEBS Lett 1986; 206:106-10. [PMID: 3093270 DOI: 10.1016/0014-5793(86)81349-7] [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: 01/04/2023]
Abstract
Treatment of the chemically transformed fibroblasts BP-A31 and other cell lines with low concentrations of cycloheximide (CHM) for 72 h followed by the removal of the protein synthesis inhibitor leads to the proliferation of alpha-difluoromethylornithine (DFMO)-resistant phenotypes. These drug-resistant cells contain almost no ornithine decarboxylase (ODC) activity and concomitantly very low levels of putrescine and spermidine. Southern blot analysis and measurements of ODC activity and intracellular polyamine levels showed that the described mechanism of inducing resistance to DFMO triggered by CHM does not involve ODC gene amplification, altered transport of the drug or reduced affinity of the enzyme for DFMO.
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Baquero F, Ferrer MM, Carvajal A. [Bacteriology and serology of pyelonephritis in children (author's transl)]. An Esp Pediatr 1975; 8 suppl 3:3-10. [PMID: 1155866] [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: 12/25/2022]
Abstract
A short review is made on the bacterial pathogenicity factors related with urinary-tract invasion and renal damage in pyelonephritis. Microbiological findings obtained after a revision of 14,181 quantitative cultures carried our in the last nine years on children under 7 years old are discussed. "E. coli" is implicated in almost a half of positive cultures; "K pneumoniae" seems to be specially related with urinary infections of premature and newborn infants (20-30% of the bacterial positivities in both groups). "Proteus" and "Pseudomonas" have more etiological weight in older children. True hospital epidemics of urinary infections have been non observed. As serological test, the o-agglutination of homologous strain (technique of Karmierczac et al.) was used in order to determine the site of infection. A rather close correlation between positivity of serologic test and renal involvement is showed.
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