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Dunn IC, Woolliams JA, Wilson PW, Icken W, Cavero D, Jones AC, Quinlan-Pluck F, Williams GOS, Olori V, Bain MM. Genetic variation and potential for genetic improvement of cuticle deposition on chicken eggs. Genet Sel Evol 2019; 51:25. [PMID: 31164080 PMCID: PMC6549311 DOI: 10.1186/s12711-019-0467-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 11/12/2018] [Accepted: 05/17/2019] [Indexed: 11/17/2022] Open
Abstract
Background The cuticle is an invisible glycosylated protein layer that covers the outside of the eggshell and forms a barrier to the transmission of microorganisms. Cuticle-specific staining and in situ absorbance measurements have been used to quantify cuticle deposition in several pure breeds of chicken. For brown eggs, a pre-stain and a post-stain absorbance measurement is required to correct for intrinsic absorption by the natural pigment. For white eggs, a post-stain absorbance measurement alone is sufficient to estimate cuticle deposition. The objective of the research was to estimate genetic parameters and provide data to promote adoption of the technique to increase cuticle deposition and reduce vertical transmission of microorganisms. Results For all pure breeds examined here, i.e. Rhode Island Red, two White Leghorns, White Rock and a broiler breed, the estimate of heritability for cuticle deposition from a meta-analysis was moderately high (0.38 ± 0.04). In the Rhode Island Red breed, the estimate of the genetic correlation between measurements recorded at early and late times during the egg-laying period was ~ 1. There was no negative genetic correlation between cuticle deposition and production traits. Estimates of the genetic correlation of cuticle deposition with shell color ranged from negative values or 0 in brown-egg layers to positive values in white- or tinted-egg layers. Using the intrinsic fluorescence of tryptophan in the cuticle proteins to quantify the amount of cuticle deposition failed because of complex quenching processes. Tryptophan fluorescence intensity at 330 nm was moderately heritable, but there was no evidence of a non-zero genetic correlation with cuticle deposition. This was complicated furthermore by a negative genetic correlation of fluorescence with color in brown eggs, due to the quenching of tryptophan fluorescence by energy transfer to protoporphyrin pigment. We also confirmed that removal of the cuticle increased reflection of ultraviolet wavelengths from the egg. Conclusions These results provide additional evidence for the need to incorporate cuticle deposition into breeding programs of egg- and meat-type birds in order to reduce vertical and horizontal transmission of potentially pathogenic organisms and to help improve biosecurity in poultry. Electronic supplementary material The online version of this article (10.1186/s12711-019-0467-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ian C Dunn
- The Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, Scotland, UK.
| | - John A Woolliams
- The Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, Scotland, UK
| | - Peter W Wilson
- The Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, Scotland, UK
| | | | | | - Anita C Jones
- School of Chemistry, University of Edinburgh, Joseph Black Building, Edinburgh, Scotland, UK
| | - Fiona Quinlan-Pluck
- School of Chemistry, University of Edinburgh, Joseph Black Building, Edinburgh, Scotland, UK
| | - Gareth O S Williams
- School of Chemistry, University of Edinburgh, Joseph Black Building, Edinburgh, Scotland, UK
| | | | - Maureen M Bain
- College of Medical, Veterinary and Life Sciences (MVLS), IBAHCM, University of Glasgow, Glasgow, Scotland, UK
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Bain MM, Zheng J, Zigler M, Whenham N, Quinlan-Pluck F, Jones AC, Roberts M, Icken W, Olori VE, Dunn IC. Cuticle deposition improves the biosecurity of eggs through the laying cycle and can be measured on hatching eggs without compromising embryonic development. Poult Sci 2019; 98:1775-1784. [DOI: 10.3382/ps/pey528] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/09/2018] [Indexed: 12/27/2022] Open
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Wilson PW, Suther CS, Bain MM, Icken W, Jones A, Quinlan-Pluck F, Olori V, Gautron J, Dunn IC. Understanding avian egg cuticle formation in the oviduct: a study of its origin and deposition. Biol Reprod 2017; 97:39-49. [PMID: 28859284 PMCID: PMC5803769 DOI: 10.1093/biolre/iox070] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [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: 04/25/2017] [Revised: 05/31/2017] [Accepted: 06/30/2017] [Indexed: 01/03/2023] Open
Abstract
The cuticle is a unique invisible oviduct secretion that protects avian eggs from bacterial penetration through gas exchange pores. Despite its importance, experimental evidence is lacking for where, when, and what is responsible for its deposition. By using knowledge about the ovulatory cycle and oviposition, we have manipulated cuticle deposition to obtain evidence on these key points. Cuticle deposition was measured using staining and spectrophotometry. Experimental evidence supports the location of cuticle deposition to be the shell gland pouch (uterus), not the vagina, and the time of deposition to be within the final hour before oviposition. Oviposition induced by arginine vasotocin or prostaglandin, the penultimate and ultimate factors for the induction of oviposition, produces an egg with no cuticle; therefore, these factors are not responsible for cuticle secretion. Conversely, oviposition induced by GNRH, which mimics the normal events of ovulation and oviposition, results in a normal cuticle. There is no evidence that cuticle deposition differs at the end of a clutch and, therefore, there is no evidence that the ovulatory surge of progesterone affects cuticle deposition. Overall, the results demonstrate that the cuticle is a specific secretion and is not merely an extension of the organic matrix of the shell. Cuticle deposition was found to be reduced by an environmental stressor, and there is no codependence of the deposition of pigment and cuticle. Defining the basic facts surrounding cuticle deposition will help reduce contamination of hen's eggs and increase understanding of the strategies birds use to protect their eggs.
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Affiliation(s)
- Peter W. Wilson
- The Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian, Scotland, UK
| | - Ceara S. Suther
- College of Medical, Veterinary and Life Sciences, Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, Scotland, UK
| | - Maureen M. Bain
- College of Medical, Veterinary and Life Sciences, Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, Scotland, UK
| | | | - Anita Jones
- School of Chemistry, University of Edinburgh, Joseph Black Building, Edinburgh, Scotland, UK
| | - Fiona Quinlan-Pluck
- School of Chemistry, University of Edinburgh, Joseph Black Building, Edinburgh, Scotland, UK
| | | | - Joël Gautron
- INRA, UR83 Recherches Avicoles, Nouzilly, France
| | - Ian C. Dunn
- The Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian, Scotland, UK
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Mahmoudi M, Quinlan-Pluck F, Monopoli MP, Sheibani S, Vali H, Dawson KA, Lynch I. Influence of the physiochemical properties of superparamagnetic iron oxide nanoparticles on amyloid β protein fibrillation in solution. ACS Chem Neurosci 2013; 4:475-85. [PMID: 23509983 DOI: 10.1021/cn300196n] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Superparamagnetic iron oxide nanoparticles (SPIONs) are recognized as promising nanodiagnostic materials due to their biocompatibility, unique magnetic properties, and their application as multimodal contrast agents. As coated SPIONs have potential use in the diagnosis and treatment of various brain diseases such as Alzheimer's, a comprehensive understanding of their interactions with Aβ and other amyloidogenic proteins is essential prior to their clinical application. Here we demonstrate the effect of thickness and surface charge of the coating layer of SPIONs on the kinetics of fibrillation of Aβ in aqueous solution. A size and surface area dependent "dual" effect on Aβ fibrillation was observed. While lower concentrations of SPIONs inhibited fibrillation, higher concentrations increased the rate of Aβ fibrillation. With respect to coating charge, it is evident that the positively charged SPIONs are capable of promoting fibrillation at significantly lower particle concentrations compared with negatively charged or uncharged SPIONs. This suggests that in addition to the presence of particles, which affect the concentration of monomeric protein in solution (and thereby the nucleation time), there are also effects of binding on the protein conformation.
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Affiliation(s)
| | - Fiona Quinlan-Pluck
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, & Conway Institute of Biomolecular and Biomedical Sciences University College Dublin, Belfield, Dublin 4, Ireland
| | - Marco P. Monopoli
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, & Conway Institute of Biomolecular and Biomedical Sciences University College Dublin, Belfield, Dublin 4, Ireland
| | - Sara Sheibani
- Department of Chemistry and
Chemical Engineering, Royal Military College, Kingston, Ontario K7K 7B4, Canada
| | - Hojatollah Vali
- Department of Anatomy and Cell Biology, McGill University, Montreal, Canada
| | - Kenneth A. Dawson
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, & Conway Institute of Biomolecular and Biomedical Sciences University College Dublin, Belfield, Dublin 4, Ireland
| | - Iseult Lynch
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, & Conway Institute of Biomolecular and Biomedical Sciences University College Dublin, Belfield, Dublin 4, Ireland
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Cabaleiro-Lago C, Quinlan-Pluck F, Lynch I, Dawson KA, Linse S. Dual effect of amino modified polystyrene nanoparticles on amyloid β protein fibrillation. ACS Chem Neurosci 2010; 1:279-87. [PMID: 22778827 DOI: 10.1021/cn900027u] [Citation(s) in RCA: 210] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2009] [Accepted: 01/18/2010] [Indexed: 11/29/2022] Open
Abstract
The fibrillation kinetics of the amyloid β peptide is analyzed in presence of cationic polystyrene nanoparticles of different size. The results highlight the importance of the ratio between the peptide and particle concentration. Depending on the specific ratio, the kinetic effects vary from acceleration of the fibrillation process by reducing the lag phase at low particle surface area in solution to inhibition of the fibrillation process at high particle surface area. The kinetic behavior can be explained if we assume a balance between two different pathways: first fibrillation of free monomer in solution and second nucleation and fibrillation promoted at the particle surface. The overall rate of fibrillation will depend on the interplay between these two pathways, and the predominance of one mechanism over the other will be determined by the relative equilibrium and rate constants.
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Affiliation(s)
- Celia Cabaleiro-Lago
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Fiona Quinlan-Pluck
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Iseult Lynch
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Kenneth A. Dawson
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Sara Linse
- Biochemistry Department, Lund University, PO Box 124, 22100 Lund, Sweden
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Cabaleiro-Lago C, Quinlan-Pluck F, Lynch I, Lindman S, Minogue AM, Thulin E, Walsh DM, Dawson KA, Linse S. Inhibition of Amyloid β Protein Fibrillation by Polymeric Nanoparticles. J Am Chem Soc 2008; 130:15437-43. [DOI: 10.1021/ja8041806] [Citation(s) in RCA: 431] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Celia Cabaleiro-Lago
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland, Department of Biophysical Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, and Laboratory for Neurodegenerative Research, UCD Conway Institute for Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Fiona Quinlan-Pluck
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland, Department of Biophysical Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, and Laboratory for Neurodegenerative Research, UCD Conway Institute for Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Iseult Lynch
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland, Department of Biophysical Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, and Laboratory for Neurodegenerative Research, UCD Conway Institute for Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Stina Lindman
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland, Department of Biophysical Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, and Laboratory for Neurodegenerative Research, UCD Conway Institute for Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Aedin M. Minogue
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland, Department of Biophysical Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, and Laboratory for Neurodegenerative Research, UCD Conway Institute for Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Eva Thulin
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland, Department of Biophysical Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, and Laboratory for Neurodegenerative Research, UCD Conway Institute for Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Dominic M. Walsh
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland, Department of Biophysical Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, and Laboratory for Neurodegenerative Research, UCD Conway Institute for Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Kenneth A. Dawson
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland, Department of Biophysical Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, and Laboratory for Neurodegenerative Research, UCD Conway Institute for Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Sara Linse
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland, Department of Biophysical Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, and Laboratory for Neurodegenerative Research, UCD Conway Institute for Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
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