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Chrastina A, Welsh J, Rondeau G, Abedinpour P, Borgström P, Baron VT. Plumbagin‐Serum Albumin Interaction: Spectral, Electrochemical, Structure‐Binding Analysis, Antiproliferative and Cell Signaling Aspects with Implications for Anticancer Therapy. ChemMedChem 2020; 15:1338-1347. [DOI: 10.1002/cmdc.202000157] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Adrian Chrastina
- Proteogenomics Research Institute for Systems Medicine (PRISM) 505 Coast Blvd. South La Jolla CA 92037 USA
| | - John Welsh
- Vaccine Research Institute of San Diego (VRISD) 3030 Bunker Hill Street San Diego CA 92109 USA
| | - Gaelle Rondeau
- Vaccine Research Institute of San Diego (VRISD) 3030 Bunker Hill Street San Diego CA 92109 USA
| | - Parisa Abedinpour
- Proteogenomics Research Institute for Systems Medicine (PRISM) 505 Coast Blvd. South La Jolla CA 92037 USA
| | - Per Borgström
- Vaccine Research Institute of San Diego (VRISD) 3030 Bunker Hill Street San Diego CA 92109 USA
| | - Véronique T. Baron
- Vaccine Research Institute of San Diego (VRISD) 3030 Bunker Hill Street San Diego CA 92109 USA
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Rondeau G, Abedinpour P, Chrastina A, Pelayo J, Borgstrom P, Welsh J. Differential gene expression induced by anti-cancer agent plumbagin is mediated by androgen receptor in prostate cancer cells. Sci Rep 2018; 8:2694. [PMID: 29426892 PMCID: PMC5807367 DOI: 10.1038/s41598-018-20451-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 01/15/2018] [Indexed: 12/24/2022] Open
Abstract
Treatment of mice harboring PTEN-P2 tumors in the prostate or on prostate tissue in vivo with 5-hydroxy-2-methyl-1,4-naphthoquinone, also known as plumbagin, results in tumor regression in castrated mice, but not in intact mice. This suggested that dihydrotestosterone (DHT) production in the testes may prevent cell death due to plumbagin treatment, but the underlying mechanism is not understood. We performed RNA-seq analysis on cells treated with combinations of plumbagin and DHT, and analyzed differential gene expression, to gain insight into the interactions between androgen and plumbgin. DHT and plumbagin synergize to alter the expression of many genes that are not differentially regulated by either single agent when used alone. These experiments revealed that, for many genes, increases in mRNAs caused by DHT are sharply down-regulated by plumbagin, and that many transcripts change in response to plumbagin in a DHT-dependent manner. This suggests that androgen receptor mediates some of the effects of plumbagin on gene expression.
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Affiliation(s)
- Gaelle Rondeau
- Vaccine Research Institute of San Diego, 3030 Bunker Hill Street, Suite 200, San Diego, CA, 92109, USA
| | - Parisa Abedinpour
- Vaccine Research Institute of San Diego, 3030 Bunker Hill Street, Suite 200, San Diego, CA, 92109, USA
| | - Adrian Chrastina
- Vaccine Research Institute of San Diego, 3030 Bunker Hill Street, Suite 200, San Diego, CA, 92109, USA
| | - Jennifer Pelayo
- Vaccine Research Institute of San Diego, 3030 Bunker Hill Street, Suite 200, San Diego, CA, 92109, USA
| | - Per Borgstrom
- Vaccine Research Institute of San Diego, 3030 Bunker Hill Street, Suite 200, San Diego, CA, 92109, USA.,Pellficure Pharmaceuticals, Inc., 2325 Camino del Collado, La Jolla, CA, 92037, USA
| | - John Welsh
- Vaccine Research Institute of San Diego, 3030 Bunker Hill Street, Suite 200, San Diego, CA, 92109, USA.
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Abedinpour P, Baron VT, Chrastina A, Rondeau G, Pelayo J, Welsh J, Borgström P. Plumbagin improves the efficacy of androgen deprivation therapy in prostate cancer: A pre-clinical study. Prostate 2017; 77:1550-1562. [PMID: 28971491 DOI: 10.1002/pros.23428] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 08/28/2017] [Indexed: 11/08/2022]
Abstract
BACKGROUND Plumbagin is a candidate drug for the treatment of prostate cancer. Previous observations indicated that it may improve the efficacy of androgen deprivation therapy (ADT). This study evaluates the effectiveness of treatment with combinations of plumbagin and alternative strategies for ADT in mouse models of prostate cancer to support its clinical use. METHODS Plumbagin was administered per oral in a new sesame oil formulation. Standard toxicology studies were performed in rats. For tumor growth studies, mouse prostate cancer cell spheroids were placed on top of grafted prostate tissue in a dorsal chamber and allowed to form tumors. Mice were separated in various treatment groups and tumor size was measured over time by intra-vital microscopy. Survival studies were done in mice after injection of prostate cancer cells in the prostate of male animals. Androgen receptor (AR) levels were analyzed by Western blot from prostate cancer cells treated with plumbagin. RESULTS Plumbagin caused a decrease in AR levels in vitro. In mice, plumbagin at 1 mg/kg in sesame oil displayed low toxicity and caused a 50% tumor regression when combined with castration. The combination of plumbagin with various forms of chemical ADT including treatment with a GnRH receptor agonist, a GnRH receptor antagonist, or CYP17A1 inhibitors, outperformed ADT alone, increasing mouse survival compared to the standard regimen of castration alone. In contrast, the combination of plumbagin with AR antagonists, such as bicalutamide and enzalutamide, showed no improvement over AR antagonists alone. Thus, plumbagin is effective in combination with drugs that prevent the synthesis of testosterone or its conversion to dihydrotestosterone, but not with drugs that bind to AR. CONCLUSION Plumbagin significantly improves the effect of ADT drugs currently used in the clinic, with few side effects in mice.
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Affiliation(s)
- Parisa Abedinpour
- Vaccine Research Institute of San Diego (VRISD), San Diego Science Center, San Diego, California
| | - Véronique T Baron
- Vaccine Research Institute of San Diego (VRISD), San Diego Science Center, San Diego, California
| | - Adrian Chrastina
- Vaccine Research Institute of San Diego (VRISD), San Diego Science Center, San Diego, California
| | - Gaelle Rondeau
- Vaccine Research Institute of San Diego (VRISD), San Diego Science Center, San Diego, California
| | - Jennifer Pelayo
- Vaccine Research Institute of San Diego (VRISD), San Diego Science Center, San Diego, California
| | - John Welsh
- Vaccine Research Institute of San Diego (VRISD), San Diego Science Center, San Diego, California
| | - Per Borgström
- Vaccine Research Institute of San Diego (VRISD), San Diego Science Center, San Diego, California
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Rondeau G, Abedinpour P, Desai P, Baron VT, Borgstrom P, Welsh J. Effects of different tissue microenvironments on gene expression in breast cancer cells. PLoS One 2014; 9:e101160. [PMID: 25004123 PMCID: PMC4086928 DOI: 10.1371/journal.pone.0101160] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 06/02/2014] [Indexed: 01/01/2023] Open
Abstract
In metastasis, circulating tumor cells penetrate the walls of blood vessels and enter the metastatic target tissue, thereby becoming exposed to novel and relatively unsupportive microenvironments. In the new microenvironments, the tumor cells often remain in a dormant state indefinitely and must adapt before they are able to successfully colonize the tissue. Very little is known about this adaptive process. We studied temporal changes in gene expression when breast cancer cells adapt to survive and grow on brain, bone marrow, and lung tissue maintained in an in vivo culture system, as models of the metastatic colonization of these tissues. We observed the transient activation of genes typically associated with homeostasis and stress during the initial stages of adaptation, followed by the activation of genes that mediate more advanced functions, such as elaboration of cell morphology and cell division, as the cells adapted to thrive in the host tissue microenvironment. We also observed the temporary induction of genes characteristic of the host tissue, which was particularly evident when tumor cells were grown on brain tissue. These early transient gene expression events suggest potential points of therapeutic intervention that are not evident in data from well-established tumors.
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Affiliation(s)
- Gaelle Rondeau
- Vaccine Research Institute of San Diego, San Diego, California, United States of America
| | - Parisa Abedinpour
- Vaccine Research Institute of San Diego, San Diego, California, United States of America
| | - Prerak Desai
- Vaccine Research Institute of San Diego, San Diego, California, United States of America
| | - Veronique T. Baron
- Vaccine Research Institute of San Diego, San Diego, California, United States of America
| | - Per Borgstrom
- Vaccine Research Institute of San Diego, San Diego, California, United States of America
| | - John Welsh
- Vaccine Research Institute of San Diego, San Diego, California, United States of America
- * E-mail:
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Chandra M, Cheng P, Rondeau G, Porwollik S, McClelland M. A single step multiplex PCR for identification of six diarrheagenic E. coli pathotypes and Salmonella. Int J Med Microbiol 2013; 303:210-6. [PMID: 23562277 DOI: 10.1016/j.ijmm.2013.02.013] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 02/01/2013] [Accepted: 02/03/2013] [Indexed: 11/19/2022] Open
Abstract
E. coli is generally a commensal but includes some highly pathogenic strains carrying additional genes in plasmids and/or the chromosome. Based on these genes the pathogenic strains are divided into pathotypes including enteropathogenic (EPEC), enterohemorrhagic (EHEC), enterotoxigenic (ETEC), enteroaggregative (EAEC), enteroinvasive (EIEC) and diffusely adherent (DAEC) E. coli. Here, previously developed multiplex PCR strategies for these strains were integrated into one single step multiplex that differentiates all these E. coli pathotypes, usually based on multiple characteristic PCR products. This multiplex PCR works reliably for colony PCR. Two additional markers were added: one to detect most Enterobacteriacea, which acts as a positive control for successful PCR, and one to distinguish Salmonella. The multiplex correctly classified a set of 45 reference strains by colony PCR and 71 (45+26) strains by in silico PCR. It was then used to interrogate 44 clinical strains from bovine hosts resulting in detection of EAEC and DAEC determinants.
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Affiliation(s)
- Mudit Chandra
- Department of Veterinary Microbiology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, India
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Wu X, Chesoni S, Rondeau G, Tempesta C, Patel R, Charles S, Daginawala N, Zucconi BE, Kishor A, Xu G, Shi Y, Li ML, Irizarry-Barreto P, Welsh J, Wilson GM, Brewer G. Combinatorial mRNA binding by AUF1 and Argonaute 2 controls decay of selected target mRNAs. Nucleic Acids Res 2013; 41:2644-58. [PMID: 23303783 PMCID: PMC3575833 DOI: 10.1093/nar/gks1453] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The RNA-binding protein AUF1 binds AU-rich elements in 3′-untranslated regions to regulate mRNA degradation and/or translation. Many of these mRNAs are predicted microRNA targets as well. An emerging theme in post-transcriptional control of gene expression is that RNA-binding proteins and microRNAs co-regulate mRNAs. Recent experiments and bioinformatic analyses suggest this type of co-regulation may be widespread across the transcriptome. Here, we identified mRNA targets of AUF1 from a complex pool of cellular mRNAs and examined a subset of these mRNAs to explore the links between RNA binding and mRNA degradation for both AUF1 and Argonaute 2 (AGO2), which is an essential effector of microRNA-induced gene silencing. Depending on the specific mRNA examined, AUF1 and AGO2 binding is proportional/cooperative, reciprocal/competitive or independent. For most mRNAs in which AUF1 affects their decay rates, mRNA degradation requires AGO2. Thus, AUF1 and AGO2 present mRNA-specific allosteric binding relationships for co-regulation of mRNA degradation.
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Affiliation(s)
- Xiangyue Wu
- Department of Biochemistry and Molecular Biology, UMDNJ-Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA
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Proux D, Hagège C, Gicquel Q, Kergourlay I, Pereira S, Rondeau G, Darmoni S, Segond F, Metzger MH. ALADIN : développement d’un outil sémantique d’analyse des documents textuels médicaux pour la détection d’infections associées aux soins. Ing Rech Biomed 2012. [DOI: 10.1016/j.irbm.2012.01.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bie L, Xia XQ, Qiu JQ, Cheng P, Rondeau G, Zhao G, McClelland M. Abstract 4186: Survival time for patients with glioblastomas is highly correlated with increased expression of major mitotic checkpoint genes. Cancer Res 2011. [DOI: 10.1158/1538-7445.am2011-4186] [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: 11/16/2022]
Abstract
Abstract
Glioblastomas are the most common and deadly CNS neoplasms. Survival time correlates with pathological grade; most World Health Organization grade III and grade IV cases die within one year of diagnosis, whereas lower grades sometimes live for years. With the goal of optimizing objective prognostic molecular staging methods for gliomas, we examined three independent microarray datasets with a total of 6 normal, 14 grade I- II, 13 grade III and 13 grade IV gliomas, using a cross-platform analysis suite (http://www.webarraydb.org). We noticed that a number of mitotic spindle assembly checkpoint (SAC) genes had transcript levels significantly altered across different pathological grades. SAC genes ensure that accurate chromosome segregation is maintained during mitosis. Previous studies have shown failure of the mitotic spindle assembly checkpoint (SAC) leads to genomic instability and neoplastic transformation. Several studies of malignant tumor suggested that increased mRNA levels of the mitotic checkpoint correlates with tumor progression, including in breast cancer and bladder cancer. Eight major mitotic spindle checkpoint genes that had significant increases in gene expression levels with increasing glioma grade in the microarray data (p < 0.001, ANOVA) were selected for quantitative reverse transcription PCR (qRT-PCR) analysis in 40 additional glioma tumors and 6 normal brain tissues; BUB1, BUB1B, BUB3, CENPE, MAD1L1, MAD2L1, CDC20, and TTK. One of these genes, CDC20, is already known to be differentially expressed across grades and inclusion allowed the relative performance of other genes to be assessed. In our study, the average mRNA transcript levels for all of these checkpoint genes increased with increasing grade. The correlations with grade had a significance level of p<0.05 (ANOVA) for BUB1, BUB1B, CENPE, MAD1L1 and CDC20. Mutations or epigenetic changes in these five genes have not yet been noted to play a significant role in the causation of chromosomal instability in glioblastomas, nor in most other cancers, an exception being BUB1mutations in some cases of colorectal cancer. The consistently high level of these particular transcripts in aggressive gliomas is perhaps due to compensation for other defects in the cell machinery that would otherwise be catastrophic. Kaplan-Meier analysis showed that BUB1B and CDC20 were independent prognostic indicators for overall survival (p<0.05). Further regression analysis indicated that changes in expression of BUB1B and CDC20, and perhaps CENPE, rival glioma grade as excellent prognosticators of survival.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 102nd Annual Meeting of the American Association for Cancer Research; 2011 Apr 2-6; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2011;71(8 Suppl):Abstract nr 4186. doi:10.1158/1538-7445.AM2011-4186
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Affiliation(s)
- Li Bie
- 1University of California, Irvine, CA
| | | | - Ji-qing Qiu
- 2Department of Neurosurgery, First Clinical Hospital, Jilin University, Changchun, China
| | - Pui Cheng
- 3Vaccine Research Institute of San Diego, San Diego, CA
| | | | - Gang Zhao
- 2Department of Neurosurgery, First Clinical Hospital, Jilin University, Changchun, China
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Rondeau G, Nolet S, Latour M, Braschi S, Gaboury L, Lacroix A, Panzini B, Arjane P, Cohade C, Bourdeau I. Clinical and biochemical features of seven adult adrenal ganglioneuromas. J Clin Endocrinol Metab 2010; 95:3118-25. [PMID: 20427489 DOI: 10.1210/jc.2009-2775] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Adrenal ganglioneuroma (GN) is seldom considered in the differential diagnosis of adrenal lesions, and its clinical presentation is not well known. OBJECTIVE Our aim was to describe the clinical, biochemical, and radiological features of adrenal GNs in adults. METHODS Seven adults underwent endocrine investigation for adrenal lesions that were confirmed to be adrenal GNs. RESULTS Mean age of the seven patients was 49 yr (range, 23 to 71 yr). Average tumor diameter was 5.0 cm (range, 1.5 to 10.4 cm). In five patients, the adrenal lesions were found incidentally. A 49-yr-old female carried a germline mutation in MSH2 gene. A 57-yr-old female presented with mild virilization and increased testosterone levels. Bilateral adrenal venous sampling revealed testosterone production from her right adrenal lesion. All tumors showed nonenhanced attenuation between 25 and 40 Hounsfield units on computed tomography scan. Magnetic resonance imaging revealed low- to iso-signal intensity on T1-weighted imaging and high-signal intensity on T2-weighted imaging. [(18)F]-2-Fluoro-deoxy-d-glucose-positron emission tomography scan (n = 5) disclosed a mean standard uptake value of 2.4. Three tumors were composite pheochromocytoma-GN. Microsatellite instability study and immunohistochemical analysis of MSH2 protein in a patient carrying a MSH2 mutation showed normal MSH2 protein expression and low microsatellite instability, indicating that the adrenal GN was not related to the patient's MSH2 germline defect. CONCLUSIONS We describe one of the largest series of adult adrenal GNs. Adrenal GNs may secrete testosterone or be part of a composite tumor with pheochromocytoma. The association of adrenal GN with MSH2 mutation seems to be a coincidental finding.
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Affiliation(s)
- G Rondeau
- Division of Endocrinology, Department of Medicine, Centre Hospitalier de l'Université de Montréal-Hôtel-Dieu, 3850, Saint Urbain Street, Montréal, Québec, Canada H2W 1T7
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Frye JG, Lindsey RL, Rondeau G, Porwollik S, Long F, McClelland M, Jackson CR, Englen MD, Meinersmann RJ, Berrang ME, Davis JA, Barrett JB, Turpin JB, Thitaram SN, Fedorka-Cray PJ. Development of a DNA microarray to detect antimicrobial resistance genes identified in the National Center for Biotechnology Information database. Microb Drug Resist 2010; 16:9-19. [PMID: 19916789 DOI: 10.1089/mdr.2009.0082] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
To understand the mechanisms and epidemiology of antimicrobial resistance (AR), the genetic elements responsible must be identified. Due to the myriad of possible genes, a high-density genotyping technique is needed for initial screening. To achieve this, AR genes in the National Center for Biotechnology Information GenBank database were identified by their annotations and compiled into a nonredundant list of 775 genes. A DNA microarray was constructed of 70mer oligonucelotide probes designed to detect these genes encoding resistances to aminoglycosides, beta-lactams, chloramphenicols, glycopeptides, heavy metals, lincosamides, macrolides, metronidazoles, polyketides, quaternary ammonium compounds, streptogramins, sulfonamides, tetracyclines, and trimethoprims as well as resistance transfer genes. The microarray was validated with two fully sequenced control strains of Salmonella enterica: Typhimurium LT2 (sensitive) and Typhi CT18 (multidrug resistance [MDR]). All resistance genes encoded on the MDR plasmid, pHCM1, harbored by CT18 were detected in that strain, whereas no resistance genes were detected in LT2. The microarray was also tested with a variety of bacteria, including MDR Salmonella enterica serovars, Escherichia coli, Campylobacter spp., Enterococcus spp., methicillin-resistant Staphylococcus aureus, Listeria spp., and Clostridium difficile. The results presented here demonstrate that a microarray can be designed to detect virtually all AR genes found in the National Center for Biotechnology Information database, thus reducing the subsequent assays necessary to identify specific resistance gene alleles.
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Affiliation(s)
- Jonathan G Frye
- Bacterial Epidemiology and Antimicrobial Resistance Research Unit, Richard B. Russell Research Center, Agriculture Research Service, U.S. Department of Agriculture, 950 College Station Road, Athens, GA 30605, USA.
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Risques RA, Rondeau G, Judex M, McClelland M, Welsh J. Assessment of gene expression in many samples using vertical arrays. Nucleic Acids Res 2008; 36:e60. [PMID: 18474526 PMCID: PMC2425485 DOI: 10.1093/nar/gkn263] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Microarrays and high-throughput sequencing methods can be used to measure the expression of thousands of genes in a biological sample in a few days, whereas PCR-based methods can be used to measure the expression of a few genes in thousands of samples in about the same amount of time. These methods become more costly as the number of biological samples increases or as the number of genes of interest increases, respectively, and these factors constrain experimental design. To address these issues, we introduced ‘vertical arrays’ in which RNA from each biological sample is converted into multiple, overlapping cDNA subsets and spotted on glass slides. These vertical arrays can be queried with single gene probes to assess the expression behavior in thousands of biological samples in a single hybridization reaction. The spotted subsets are less complex than the original RNA from which they derive, which improves signal-to-noise ratios. Here, we demonstrate the quantitative capabilities of vertical arrays, including the sensitivity and accuracy of the method and the number of subsets needed to achieve this accuracy for most expressed genes.
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Affiliation(s)
- Rosa Ana Risques
- Sidney Kimmel Cancer Center, 10905 Road to the Cure, San Diego, CA 92121, USA
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Risques R, Rondeau G, Judex M, McClelland M, Welsh J. Vertical arrays: microarrays of complex mixtures of nucleic acids. Methods Mol Biol 2006; 317:99-109. [PMID: 16264224 DOI: 10.1385/1-59259-968-0:099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Vertical arrays are microarrays that have complex mixtures of nucleic acids as array elements, and that are hybridized with single sequence probes. Like dot blots, many different experiments can be spotted on a single vertical array, allowing single genes to be compared across many conditions. Vertical arrays have two additional advantages over dot blots. First, they are printed on glass slides, allowing the use of low-volume, high-concentration hybridization reactions. Second, they can be made using low-complexity representations of the original nucleic acid population. This increases signal-to-noise relative to the usual use of dot blots, wherein the entire complexity of the population is usually spotted. Whereas standard microarrays achieve horizontal coverage of many genes and are repeated to cover many experiments, vertical arrays achieve vertical coverage of many experiments and are repeated to cover many genes. In cases where the number of genes is limited, but the number of experiments is very large, vertical arrays may be advantageous.
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Affiliation(s)
- Rosana Risques
- Department of Molecular Biology and Cancer Genetics, Sidney Kimmel Cancer Center, San Diego, CA, USA
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Frye JG, Jesse T, Long F, Rondeau G, Porwollik S, McClelland M, Jackson CR, Englen M, Fedorka-Cray PJ. DNA microarray detection of antimicrobial resistance genes in diverse bacteria. Int J Antimicrob Agents 2006; 27:138-51. [PMID: 16427254 DOI: 10.1016/j.ijantimicag.2005.09.021] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2005] [Accepted: 09/17/2005] [Indexed: 11/26/2022]
Abstract
High throughput genotyping is essential for studying the spread of multiple antimicrobial resistance. A test oligonucleotide microarray designed to detect 94 antimicrobial resistance genes was constructed and successfully used to identify antimicrobial resistance genes in control strains. The microarray was then used to assay 51 distantly related bacteria, including Gram-negative and Gram-positive isolates, resulting in the identification of 61 different antimicrobial resistance genes in these bacteria. These results were consistent with their known gene content and resistance phenotypes. Microarray results were confirmed by polymerase chain reaction and Southern blot analysis. These results demonstrate that this approach could be used to construct a microarray to detect all sequenced antimicrobial resistance genes in nearly all bacteria.
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Affiliation(s)
- Jonathan G Frye
- Bacterial Epidemiology and Antimicrobial Resistance Research Unit, U.S. Department of Agriculture, Agriculture Research Service, Richard B. Russell Research Center, 950 College Station Road, Athens, GA 30605, USA.
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Wang Y, Hayakawa J, Long F, Yu Q, Cho AH, Rondeau G, Welsh J, Mittal S, De Belle I, Adamson E, McClelland M, Mercola D. "Promoter Array" Studies Identify Cohorts of Genes Directly Regulated by Methylation, Copy Number Change, or Transcription Factor Binding in Human Cancer Cells. Ann N Y Acad Sci 2005; 1058:162-85. [PMID: 16394135 DOI: 10.1196/annals.1359.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
DNA microarrays of promoter sequences have been developed in order to identify the profile of genes bound and activated by DNA regulatory proteins such as the transcription factors c-Jun and ATF2 as well as DNA-modifying methylases. The arrays contain 3083 unique human promoter sequences from +500 to -1000 nts from the transcription start site. Cisplatin-induced DNA damage rapidly leads to specific activation of the Jun kinase pathway leading to increased phosphorylation of c-Jun and ATF2-DNA complexes at hundreds of sites within 3 hours. Using three statistical criteria, approximately 269 most commonly phosphorylated c-Jun/ATF2-DNA complexes were identified and representative cases were verified by qPCR measurement of ChIP-captured DNA. Expression was correlated at the mRNA and protein levels. The largest functional cohort was 24 genes of known DNA repair function, most of which exhibited increased protein expression indicated coordinate gene regulation. In addition, cell lines of prostate cancer exhibit stable methylation or copy number changes that reflect the alterations of the corresponding primary tumors. 504 (18.5%) promoters showed differential hybridization between immortalized control prostate epithelial and cancer cell lines. Among candidate hypermethylated genes in cancer-derived lines, eight had previously been observed in prostate cancer, and 13 were previously determined methylation targets in other cancers. The vast majority of genes that appear to be both differentially methylated and differentially regulated between prostate epithelial and cancer cell lines are novel methylation targets, including PAK6, RAD50, TLX3, PIR51, MAP2K5, INSR, FBN1, GG2-1, representing a rich new source of candidate genes to study the role of DNA methylation in prostate tumors. Earlier studies using prototype promoter arrays examine approximately 7% of the proximal regulatory sequences while the current gene regulatory events surveyed here occur on a large scale and may rapidly effect the coordinated expression of a large number of genes.
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Affiliation(s)
- Yipeng Wang
- Stanley Kimmel Cancer Center, San Diego California 92121, USA
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15
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Wang Y, Yu Q, Cho AH, Rondeau G, Welsh J, Adamson E, Mercola D, McClelland M. Survey of differentially methylated promoters in prostate cancer cell lines. Neoplasia 2005; 7:748-60. [PMID: 16207477 PMCID: PMC1501885 DOI: 10.1593/neo.05289] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2005] [Revised: 04/15/2005] [Accepted: 04/22/2005] [Indexed: 12/31/2022]
Abstract
DNA methylation and copy number in the genomes of three immortalized prostate epithelial and five cancer cell lines (LNCaP, PC3, PC3M, PC3M-Pro4, and PC3M-LN4) were compared using a microarray-based technique. Genomic DNA is cut with a methylation-sensitive enzyme HpaII, followed by linker ligation, polymerase chain reaction (PCR) amplification, labeling, and hybridization to an array of promoter sequences. Only those parts of the genomic DNA that have unmethylated restriction sites within a few hundred base pairs generate PCR products detectable on an array. Of 2732 promoter sequences on a test array, 504 (18.5%) showed differential hybridization between immortalized prostate epithelial and cancer cell lines. Among candidate hypermethylated genes in cancer-derived lines, there were eight (CD44, CDKN1A, ESR1, PLAU, RARB, SFN, TNFRSF6, and TSPY) previously observed in prostate cancer and 13 previously known methylation targets in other cancers (ARHI, bcl-2, BRCA1, CDKN2C, GADD45A, MTAP, PGR, SLC26A4, SPARC, SYK, TJP2, UCHL1, and WIT-1). The majority of genes that appear to be both differentially methylated and differentially regulated between prostate epithelial and cancer cell lines are novel methylation targets, including PAK6, RAD50, TLX3, PIR51, MAP2K5, INSR, FBN1, and GG2-1, representing a rich new source of candidate genes used to study the role of DNA methylation in prostate tumors.
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Affiliation(s)
- Yipeng Wang
- Sidney Kimmel Cancer Center, 10835 Road to the Cure, San Diego, CA 92121, USA
| | - Qiuju Yu
- Sidney Kimmel Cancer Center, 10835 Road to the Cure, San Diego, CA 92121, USA
| | - Ann H Cho
- Sidney Kimmel Cancer Center, 10835 Road to the Cure, San Diego, CA 92121, USA
| | - Gaelle Rondeau
- Sidney Kimmel Cancer Center, 10835 Road to the Cure, San Diego, CA 92121, USA
| | - John Welsh
- Sidney Kimmel Cancer Center, 10835 Road to the Cure, San Diego, CA 92121, USA
| | - Eileen Adamson
- The Burnham Institute, Cancer Research Center, La Jolla, CA, USA
| | - Dan Mercola
- Department of Pathology, University of California at Irvine, Irvine, CA 92697, USA
| | - Michael McClelland
- Sidney Kimmel Cancer Center, 10835 Road to the Cure, San Diego, CA 92121, USA
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16
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Abstract
Polyribosome sedimentation velocity centrifugation can be used to identify differential regulation of the translation of mRNAs. However, ultracentrifugation presents practical limitations on the number of sedimentation velocity gradients that can be run simultaneously. A method for sedimentation velocity analysis of polyribosomes is presented that is based on low-speed centrifugation of sucrose gradients prepared in deep 96-well plates, the advantage of which is that hundreds of polyribosome fractionations can be performed simultaneously in a tabletop centrifuge.
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Affiliation(s)
- Yipeng Wang
- Sidney Kimmel Cancer Center, 10835 Altman Row, San Diego, CA 92121, USA
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17
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Ringquist S, Rondeau G, Risques RA, Higashiyama T, Wang YP, Porwollik S, Boyle D, McClelland M, Welsh J. Microarray analysis using RNA arbitrarily primed PCR. Methods Mol Biol 2003; 226:245-54. [PMID: 12958507 DOI: 10.1385/1-59259-384-4:245] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
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18
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Rondeau G, Moreau I, Bézieau S, Petit JL, Heilig R, Fernandez S, Pennarun E, Myers JS, Batzer MA, Moisan JP, Devilder MC. Comprehensive analysis of a large genomic sequence at the putative B-cell chronic lymphocytic leukaemia (B-CLL) tumour suppresser gene locus. Mutat Res 2001; 458:55-70. [PMID: 11691637 DOI: 10.1016/s0027-5107(01)00219-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [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: 11/26/2022]
Abstract
In many haematological diseases, and more particularly in B-cell chronic lymphocytic leukaemia (B-CLL), the existence of a tumour suppressor gene located within the frequently deleted region 13q14.3, has been put forward. A wide candidate region spanning from marker D13S273 to D13S25 has been proposed and an extensive physical map has been constructed by several teams. In this study, we sequenced a minimal core deleted region that we have previously defined and annotated it with flanking available public sequences. Our analysis shows that this region is gene-poor. Furthermore, our work allowed us to identify new alternative transcripts, spanning core regions, of the previously defined candidate genes DLEU1 and DLEU2. Since their putative involvement in B-CLL was controversial, our present study provide support for reconsidering the DLEU1 and DLEU2 genes as B-CLL candidate genes, with a new definition of their organisation and context.
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Affiliation(s)
- G Rondeau
- INSERM U463, Institut de Biologie de l'Hôtel-Dieu, Centre Hospitalier Universitaire, 44093 Cedex, Nantes, France
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19
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Rondeau G, Brodeur N, Brochu S, Lemire G. Dropout and completion of treatment among spouse abusers. Violence Vict 2001; 16:127-143. [PMID: 11345474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
This study examines a population of spouse abusers undertaking a treatment program. Its purpose was to identify the variables associated with dropout and completion of treatment and to build a predictive model. Data were collected on 286 men who began group treatment in one of eight community programs in the province of Quebec, Canada. Results show that men who complete treatment are older, better educated and have better economic conditions than men who drop out. They also have a more stable family life, have been in a relationship for a longer period of time and have more children with their actual spouse. Men who completed treatment showed more commitment, better working capacities and a higher level of agreement with their therapists, thus developing a stronger therapeutic alliance. Support provided by people in the environment was significantly related to treatment completion. Social and judicial pressures were not related to completion.
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Affiliation(s)
- G Rondeau
- Ecole de service social, Université de Montréal, Québec, Canada
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20
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Cavé H, Avet-Loiseau H, Devaux I, Rondeau G, Boutard P, Lebrun E, Méchinaud F, Vilmer E, Grandchamp B. Deletion of chromosomal region 13q14.3 in childhood acute lymphoblastic leukemia. Leukemia 2001; 15:371-6. [PMID: 11237059 DOI: 10.1038/sj.leu.2402052] [Citation(s) in RCA: 10] [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] [Indexed: 11/09/2022]
Abstract
Deletion of the 13q14 chromosomal region is frequent in B cell chronic lymphocytic leukemia (B-CLL) and is believed to inactivate a tumor supressor gene (TSG) next to RB1. We studied microsatellite markers spanning the 13q14 chromosomal region in 138 children with acute lymphoblastic leukemia (ALL). Allelic loss was demonstrated in six cases (4.3%). Deletion did not include RB1 in two cases. In five patients, the deleted region overlapped that described in B-CLL. A sixth patient harbored a smaller deletion, slightly more telomeric than minimal deleted regions reported in B-CLL. Apparent differences in the delineation of the minimal deleted region could be due to the fact that the putative TSG is a very large gene, with some deletions affecting only a part of it. Our present findings suggest that at least some of its exons lie within a region of less than 100 kb more telomeric that previously thought.
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Affiliation(s)
- H Cavé
- Laboratoire de Biochimie Génétique, H pital Robert Debré, INSERM U409, Faculté de Médecine Xavier Bichat, Paris, France
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21
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Rondeau G, Moreau I, Bézieau S, Cadoret E, Moisan JP, Devilder MC. Exclusion of Leu1 and Leu2 genes as tumor suppressor genes in 13q14.3-deleted B-CLL. Leukemia 1999; 13:1630-2. [PMID: 10516767 DOI: 10.1038/sj.leu.2401525] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [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: 11/09/2022]
Abstract
The chromosomal region 13q14.3 is frequently deleted in B cell chronic lymphocytic leukemia (B-CLL) and it is supposed that a tumor suppressor gene, involved in this leukemogenesis, is located in this area. The first exons of two genes, Leu1 and Leu2, mapped in a minimally deleted 13q14.3 region, are systematically lost in B-CLL sharing a 13q14.3 deletion. These two genes have been proposed as strong tumor suppressor gene candidates. However, in a study on 15 13q14.3 deleted B-CLL, we found three patients in which this critical region was not involved. Because of these results and that no mutations were detected on the two genes in a previous study, we think that Leu1 and Leu2 can be excluded as tumor suppressor genes.
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Affiliation(s)
- G Rondeau
- INSERM U463, Institut de Biologie de l'Hôtel-Dieu, Centre Hospitalier Universitaire, 44093 Nantes cedex, France
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22
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Devilder MC, Cadoret E, Chérel M, Moreau I, Rondeau G, Bézieau S, Moisan JP. cDNA cloning, gene characterization and 13q14.3 chromosomal assignment of CHC1-L, a chromosome condensation regulator-like guanine nucleotide exchange factor. Genomics 1998; 54:99-106. [PMID: 9806834 DOI: 10.1006/geno.1998.5498] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [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: 11/22/2022]
Abstract
We report the characterization of a new gene mapped at chromosome band 13q14.3 telomeric to the retinoblastoma gene. This gene, designated CHC1L (for chromosome condensation 1-like), is composed of 14 exons spanning 30 kb of genomic DNA and encodes a ubiquitously expressed 3-kb mRNA. The N-terminal half of the deduced amino acid sequence shows strong homology with the seven tandem repeat structure of the regulator of chromosome condensation RCC1, which acts as a guanine nucleotide exchange factor (GEF) protein for the Ras-related GTPase Ran. CHC1L appears to be a new member of the RCC1-related GEF family.
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Affiliation(s)
- M C Devilder
- Institut de Biologie de l'Hôtel-Dieu, Centre Hospitalier Universitaire, Nantes Cedex, 44093, France
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23
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Bézieau S, Devilder MC, Rondeau G, Cadoret E, Moisan JP, Moreau I. Assignment of 48 ESTs to chromosome 13 band q14.3 and expression pattern for ESTs located in the core region deleted in B-CLL. Genomics 1998; 52:369-73. [PMID: 9790756 DOI: 10.1006/geno.1998.5464] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [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: 11/22/2022]
Abstract
An expression map containing 48 ESTs was constructed to identify a tumor-suppressor gene involved in B-cell chronic lymphocytic leukemia (B-CLL), which was previously assigned to chromosome band 13q14.3 close to genetic markers D13S25 and D13S319. Thirty-nine of these 48 ESTs, together with 11 additional ones listed in databases, were initially assigned to chromosome 13q14 between markers D13S168 and D13S176. Nine others have recently been located in the D13S319 region. Our results indicate that 48 of the 59 ESTs analyzed belong to a YAC contig of chromosome 13 band q14, and 22 are contained on YAC 933e9, which encompasses the B-CLL critical region. Ten of these 22 ESTs were accurately assigned on a PAC, BAC, and cosmid contig encompassing the smallest minimal deletion area described so far in B-CLL, and 20 were tested for their expression on 27 normal or tumor tissues. One EST appears to be a likely candidate for the tumor-suppressor gene involved in B-CLL.
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MESH Headings
- Chromosome Mapping
- Chromosomes, Artificial, Yeast/genetics
- Chromosomes, Human, Pair 13/genetics
- Databases, Factual
- Expressed Sequence Tags
- Gene Expression Regulation, Neoplastic/genetics
- Genes, Tumor Suppressor/genetics
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- RNA, Messenger/genetics
- Sequence Deletion/genetics
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Affiliation(s)
- S Bézieau
- Institut de Biologie de l'Hôtel-Dieu, INSERM U463, Nantes Cedex, 44093, France
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24
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Bouyge-Moreau I, Rondeau G, Avet-Loiseau H, André MT, Bézieau S, Chérel M, Saleün S, Cadoret E, Shaikh T, De Angelis MM, Arcot S, Batzer M, Moisan JP, Devilder MC. Construction of a 780-kb PAC, BAC, and cosmid contig encompassing the minimal critical deletion involved in B cell chronic lymphocytic leukemia at 13q14.3. Genomics 1997; 46:183-90. [PMID: 9417905 DOI: 10.1006/geno.1997.5008] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [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: 02/05/2023]
Abstract
A putative tumor suppressor gene involved in B cell chronic lymphocytic leukemia (B-CLL) was mapped to human chromosome 13q14.3 close to the genetic markers D13S25 and D13S319. We constructed a 780-kb-long contig composed of cosmids, bacterial artificial chromosomes, and bacteriophage P1-derived artificial chromosomes that provides essential information and tools for the positional cloning of this gene. The conting contains both flanking markers as well as several additional genetic markers, three ESTs, and one potential CpG island. In addition, using one B-CLL patient, we characterized a small internal deleted region of 550 kb. Comparing this deletion with other recently published deletions narrows the minimally deleted area to less than 100 kb in our physical map. This deletion core region should contain all or part of the disrupted in B cell malignancies tumor suppressor gene.
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Affiliation(s)
- I Bouyge-Moreau
- Institut de Biologie de l'Hôtel-Dieu, INSERM U 463, Centre Hospitalier Universitaire, Nantes, France
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25
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Rondeau G, Desgranges JL. Effects of insecticide use on breeding birds in Christmas tree plantations in Quebec. Ecotoxicology 1995; 4:281-298. [PMID: 24197796 DOI: 10.1007/bf00118595] [Citation(s) in RCA: 5] [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] [Received: 09/12/1994] [Accepted: 01/10/1995] [Indexed: 06/02/2023]
Abstract
: This research, which was carried out in the spring of 1989 and 1990 in seven balsam fir (Abies balsamea) plantations in southeastern Quebec, examines potential deleterious effects of three insecticides (i.e. dimethoate, diazinon and insecticidal soap) on breeding American Robins (Turdus migratorius) (n=87 nests) and Song Sparrows (Melospizsa melodia) (n=41 nests). Through analyses of blood serum cholinesterases (AChE and BChE) activity both prior to and the second day following applications of the two organophosphorus insecticides, we showed that adult American Robins, Song Sparrows and Chipping Sparrows (Spizella passerina) breeding in the treated plantations were exposed to diazinon and dimethoate (p<0.05). Signs of exposure to diazinon (p<0.05) were also found in young American Robins. However, despite sharp reductions in blood ChE (and, in some cases, marked inhibition confirmed by 2-PAM reactivation), no cases of adult mortality were recorded following the treatments. Cases of complete or partial mortality were recorded in American Robin and Song Sparrow nests, even among control birds (non-exposed birds). No mortality was recorded for broods exposed to the insecticidal soap. Abandonment of nests and egg infertility were ruled out as possible causes of mortality. The cases of total mortality observed in American Robin and Song Sparrow broods exposed to dimethoate were similar to those recorded for control nests (18 and 25% compared to 14 and 21%, respectively). However, among American Robin and Song Sparrow nestlings exposed to diazinon, essentially twice as many cases of total mortality (31 and 38%, respectively) were recorded as for the control nests. It appears that American Robin eggs are sensitive to diazinon and dimethoate, particularly when spraying is carried out early in the incubation stage. In the case of the Song Sparrow, it is mainly the nestlings that succumb after diazinon is sprayed on them or when dimethoate applications are made during the egg stage.
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Affiliation(s)
- G Rondeau
- Canadian Wildlife Service, Environment Canada, PO Box 10100, G1V 4H5, Sainte-Foy, Québec, Canada
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26
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Syphers M, Ball M, Brabson B, Budnick J, Caussyn DD, Chao AW, Collins J, Derenchuk V, Dutt S, East G, Ellison M, Ellison T, Friesel D, Gabella W, Hamilton B, Huang H, Jones WP, Lee SY, Li D, Minty MG, Nagaitsev S, Ng KY, Pei X, Rondeau G, Sloan T, Teng L, Tepikian S, Wang Y, Yan YT, Zhang PL. Experimental study of synchro-betatron coupling induced by dipole modulation. Phys Rev Lett 1993; 71:719-722. [PMID: 10055349 DOI: 10.1103/physrevlett.71.719] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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27
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Ellison M, Ball M, Brabson B, Budnick J, Caussyn DD, Chao AW, Collins J, Curtis SA, Derenchuk V, Dutt S, East G, Ellison T, Friesel D, Gabella W, Hamilton B, Huang H, Jones WP, Lamble W, Lee SY, Li D, Minty MG, Nagaitsev S, Ng KY, Pei X, Rondeau G, Sloan T, Syphers M, Tepikian S, Yan Y, Zhang PL. Driven response of the synchrotron motion of a beam. Phys Rev Lett 1993; 70:591-594. [PMID: 10054153 DOI: 10.1103/physrevlett.70.591] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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