BMC Medical Genomics

official impact factor 3.77

Open Access Research article

Distinct gene subsets in pterygia formation and recurrence: dissecting complex biological phenomenon using genome wide expression data

Louis Tong1, Jaime Chew1, Henry Yang2, Leonard PK Ang1,3,4, Donald TH Tan1,3,4 and Roger W Beuerman1,4*

Author Affiliations

1 Singapore Eye Research Institute (SERI), Singapore National Eye Center, Singapore

2 Transcriptomics Platform, Singapore Immunology Network, Singapore

3 Department of Cornea and External eye disease, Singapore National Eye Center, Singapore

4 Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore

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BMC Medical Genomics 2009, 2:14 doi:10.1186/1755-8794-2-14

Published: 10 March 2009

Additional files

Additional File 1:

Clinical appearance of pterygium on color photographs. A. Primary pterygium and B. Recurrent pterygium. Note the excessive scarring that is typical of recurrent pterygium.

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Additional File 2:

Primary and recurrent pterygium specific genes. Heat map showing pterygium specific and recurrence specific genes. Note that in recurrent pterygium a larger number of genes were relatively down-regulated (green) compared to primary pterygium and un-involved conjunctiva, and a smaller but still large number of genes were up-regulated (red) compared to primary pterygium and un-involved conjunctiva.

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Additional File 3:

Postulated pterygium recurrence pathways. These pathways A and B were obtained from pathway analysis. Red symbols: genes up-regulated in recurrent pterygia compared to primary pterygia.

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Additional File 4:

Immunofluorescence image showing staining for CD24 in the pterygium epithelium.

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Additional File 5:

Relationships in the pathway studio 5.0 analysis for up-regulated genes.

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Additional File 6:

Relationships in the pathway studio 5.0 analysis for down-regulated genes.

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Additional File 7:

Primers used for PCR.

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