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Aberdein D, Munday JS, Dittmer KE, Heathcott RW, Lyons LA. Frequency of a FAS ligand gene variant associated with inherited feline autoimmune lymphoproliferative syndrome in British shorthair cats in New Zealand. N Z Vet J 2017; 65:327-331. [DOI: 10.1080/00480169.2017.1367731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- D Aberdein
- Institute of Veterinary, Animal, and Biomedical Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand
| | - JS Munday
- Institute of Veterinary, Animal, and Biomedical Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand
| | - KE Dittmer
- Institute of Veterinary, Animal, and Biomedical Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand
| | - RW Heathcott
- Institute of Veterinary, Animal, and Biomedical Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand
| | - LA Lyons
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, 1600 E. Rollins St., University of Missouri – Columbia, Columbia, MO, USA
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Munday JS, Marshall S, Thomson NA, Kiupel M, Heathcott RW, French A. Multiple viral plaques with sebaceous differentiation associated with an unclassified papillomavirus type in a cat. N Z Vet J 2017; 65:219-223. [PMID: 28358996 DOI: 10.1080/00480169.2017.1313146] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
CASE HISTORY AND CLINICAL FINDINGS A 15-year-old neutered male domestic short-haired cat was presented due to multiple 0.5-2 cm-diameter crusting plaques in the left preauricular region, over the bridge of nose, and in the right periocular region. The plaques did not appear to cause discomfort. HISTOPATHOLOGICAL FINDINGS Biopsy samples of four plaques were examined histologically. Three plaques consisted of well-demarcated foci of mild epidermal hyperplasia overlying markedly hyperplastic sebaceous glands. Approximately 60% of the hyperplastic cells contained a large cytoplasmic vacuole that ranged from being clear to containing prominent grey-blue fibrillar material. The fourth plaque was composed solely of epidermal hyperplasia, consistent with previous descriptions of feline viral plaques. MOLECULAR BIOLOGY Papillomavirus DNA was amplified from all four plaques using PCR. A single DNA sequence was amplified from the plaques with sebaceous differentiation. This sequence was identical to the FdPV-MY sequence previously suggested to be from a putative unclassified papillomavirus type. Felis catus papillomavirus type 2 sequences were amplified from the plaque typical of feline viral plaques. Immunohistochemistry to detect p16CDKN2A protein (p16) showed marked immunostaining throughout the hyperplastic epidermis and adnexal structures within the plaques with sebaceous differentiation. DIAGNOSIS Multiple feline viral plaques with variable sebaceous differentiation. CLINICAL RELEVANCE Feline viral plaques with sebaceous differentiation have not been previously reported in cats. The presence of unique cell changes within these lesions, the detection of an unclassified papillomavirus type, and the p16 immunostaining within these plaques suggest that they may have been caused by the papillomavirus that contains the FdPV-MY sequence.
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Affiliation(s)
- J S Munday
- a Department of Pathobiology, Institute of Veterinary, Animal and Biomedical Sciences , Massey University , Private Bag 11 222, Palmerston North , New Zealand
| | - S Marshall
- b Veterinary Associates , Hastings , New Zealand
| | - N A Thomson
- a Department of Pathobiology, Institute of Veterinary, Animal and Biomedical Sciences , Massey University , Private Bag 11 222, Palmerston North , New Zealand
| | - M Kiupel
- c Department of Pathobiology and Diagnostic Investigation/Diagnostic Center for Population and Animal Health , Michigan State University , East Lansing , MI , USA
| | - R W Heathcott
- a Department of Pathobiology, Institute of Veterinary, Animal and Biomedical Sciences , Massey University , Private Bag 11 222, Palmerston North , New Zealand
| | - A French
- d New Zealand Veterinary Pathology Ltd , Palmerston North , New Zealand
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Fukuzawa R, Anaka MR, Heathcott RW, McNoe LA, Morison IM, Perlman EJ, Reeve AE. Wilms tumour histology is determined by distinct types of precursor lesions and not epigenetic changes. J Pathol 2008; 215:377-87. [DOI: 10.1002/path.2366] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Abstract
BACKGROUND Loss of imprinting (LOI) of the H19/IGF2 domain is a common feature of Wilms tumour. The GTL2/DLK1 domain is also imprinted and is structurally similar to H19/IGF2. The question arises as to whether DLK1 also undergoes LOI in Wilms tumour, or whether the LOI mechanism is restricted to the H19/IGF2 domain. AIM To investigate the imprinting status of DLK1 in Wilms tumours with IGF2 LOI. The cellular localisation of DLK1 in the tumours was also examined. METHODS DLK1 expression was measured by quantitative real time polymerase chain reaction (Q-PCR) in 30 Wilms tumours that had previously been classified according to whether they had IGF2 LOI, WT1 mutations, or 11p15.5 loss of heterozygosity. Allele specific expression of DLK1 was examined by direct sequencing using a DLK1 exon 5 polymorphism (rs1802710). Immunohistochemical analysis of DLK1 was performed on 13 tumours and two intralobar nephrogenic rests, in addition to two fetal kidneys and one fetal skeletal muscle sample. RESULTS Ten of 30 tumours were heterozygous for rs1802710 and all tumours showed retention of imprinting of DLK1. Moderate to high expression of DLK1 was detected by Q-PCR in nine of 13 tumours with myogenic differentiation. Immunohistochemical expression of DLK1 was detected in the myogenic elements. CONCLUSION LOI does not occur at the GTL2/DLK1 domain in Wilms tumour. This finding suggests that LOI at 11p15.5 does not reflect non-specific disruption of a shared imprinting mechanism. DLK1 expression in Wilms tumour might reflect the presence of myogenic differentiation, rather than an alteration of its imprinting status.
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Affiliation(s)
- R Fukuzawa
- Cancer Genetics Laboratory, Department of Biochemistry, University of Otago, PO Box 56, Dunedin, New Zealand.
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Affiliation(s)
- R Fukuzawa
- Department of Pathology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.
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Bentley DR, Deloukas P, Dunham A, French L, Gregory SG, Humphray SJ, Mungall AJ, Ross MT, Carter NP, Dunham I, Scott CE, Ashcroft KJ, Atkinson AL, Aubin K, Beare DM, Bethel G, Brady N, Brook JC, Burford DC, Burrill WD, Burrows C, Butler AP, Carder C, Catanese JJ, Clee CM, Clegg SM, Cobley V, Coffey AJ, Cole CG, Collins JE, Conquer JS, Cooper RA, Culley KM, Dawson E, Dearden FL, Durbin RM, de Jong PJ, Dhami PD, Earthrowl ME, Edwards CA, Evans RS, Gillson CJ, Ghori J, Green L, Gwilliam R, Halls KS, Hammond S, Harper GL, Heathcott RW, Holden JL, Holloway E, Hopkins BL, Howard PJ, Howell GR, Huckle EJ, Hughes J, Hunt PJ, Hunt SE, Izmajlowicz M, Jones CA, Joseph SS, Laird G, Langford CF, Lehvaslaiho MH, Leversha MA, McCann OT, McDonald LM, McDowall J, Maslen GL, Mistry D, Moschonas NK, Neocleous V, Pearson DM, Phillips KJ, Porter KM, Prathalingam SR, Ramsey YH, Ranby SA, Rice CM, Rogers J, Rogers LJ, Sarafidou T, Scott DJ, Sharp GJ, Shaw-Smith CJ, Smink LJ, Soderlund C, Sotheran EC, Steingruber HE, Sulston JE, Taylor A, Taylor RG, Thorpe AA, Tinsley E, Warry GL, Whittaker A, Whittaker P, Williams SH, Wilmer TE, Wooster R, Wright CL. The physical maps for sequencing human chromosomes 1, 6, 9, 10, 13, 20 and X. Nature 2001; 409:942-3. [PMID: 11237015 DOI: 10.1038/35057165] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [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: 11/09/2022]
Abstract
We constructed maps for eight chromosomes (1, 6, 9, 10, 13, 20, X and (previously) 22), representing one-third of the genome, by building landmark maps, isolating bacterial clones and assembling contigs. By this approach, we could establish the long-range organization of the maps early in the project, and all contig extension, gap closure and problem-solving was simplified by containment within local regions. The maps currently represent more than 94% of the euchromatic (gene-containing) regions of these chromosomes in 176 contigs, and contain 96% of the chromosome-specific markers in the human gene map. By measuring the remaining gaps, we can assess chromosome length and coverage in sequenced clones.
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MESH Headings
- Chromosomes, Human, Pair 1
- Chromosomes, Human, Pair 10
- Chromosomes, Human, Pair 13
- Chromosomes, Human, Pair 20
- Chromosomes, Human, Pair 6
- Contig Mapping
- Genome, Human
- Humans
- X Chromosome
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Mungall AJ, Humphray SJ, Ranby SA, Edwards CA, Heathcott RW, Clee CM, Holloway E, Peck AI, Harrison P, Green LD, Butler AP, Langford CF, William RG, Huckle EJ, Baron L, Smith A, Leversha MA, Ramsey YH, Clegg SM, Rice CM, Maslen GL, Hunt SE, Scott CE, Soderlund CA, Dunham I. From long range mapping to sequence-ready contigs on human chromosome 6. DNA Seq 2000; 8:151-4. [PMID: 10668960 DOI: 10.3109/10425179709034066] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Our aim is to construct physical clone maps covering those regions of chromosome 6 that are not currently extensively mapped, and use these to determine the DNA sequence of the whole chromosome. The strategy we are following involves establishing a high density framework map of the order of 15 markers per Megabase using radiation hybrid (RH) mapping. The markers are then used to identify large-insert genomic bacterial clones covering the chromosome, which are assembled into sequence-ready contigs by restriction enzyme fingerprinting and sequence tagged site (STS) content analysis. Contig gap closure is performed by walking experiments using STSs developed from the end sequences of the clone inserts.
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Mungall AJ, Edwards CA, Ranby SA, Humphray SJ, Heathcott RW, Clee CM, East CL, Holloway E, Butler AP, Langford CF, Gwilliam R, Rice KM, Maslen GL, Carter NP, Ross MT, Deloukas P, Bentley DR, Dunham I. Physical mapping of chromosome 6: a strategy for the rapid generation of sequence-ready contigs. DNA Seq 1996; 7:47-9. [PMID: 9063638 DOI: 10.3109/10425179609015647] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The development of radiation hybrid (RH) mapping (Cox et al., 1990) and the availability of large numbers of STS markers, together with extensive bacterial clone resources provided a means to accelerate the process of mapping a human chromosome and preparing bacterial clone contigs ready to sequence. Our aim is to construct physical clone maps covering those regions of chromosome 6 that are not currently extensively mapped, and use these to determine the DNA sequence of the whole chromosome. We report here a strategy which initially involves establishing a high density framework map using RH mapping. The framework markers are then used for the identification of bacterial genomic clones covering the chromosome. The bacterial clones are analysed by restriction enzyme fingerprinting and STS-content analysis to identify sequence-ready contigs. Contig gap closure will also be performed by clone walking.
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