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Vaccinia virus–specific molecular signature in atopic dermatitis skin

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1 Vaccinia virus–specific molecular signature in atopic dermatitis skin
Dmitry N. Grigoryev, MD, PhD, Michael D. Howell, PhD, Tonya N. Watkins, BS, Yu-Chi Chen, MS, Chris Cheadle, PhD, Mark Boguniewicz, MD, Kathleen C. Barnes, PhD, Donald Y.M. Leung, MD, PhD  Journal of Allergy and Clinical Immunology  Volume 125, Issue 1, Pages e28 (January 2010) DOI: /j.jaci Copyright © 2010 American Academy of Allergy, Asthma & Immunology Terms and Conditions

2 Fig 1 AD-specific (A and B) and VV-induced (C and D) transcriptional changes in skin biopsy specimens from unaffected areas. Gene expression analysis was conducted with standard (solid circle) and clustering (dashed circles) approaches (see the Methods section). The single pool represents the number of significantly different genes that were detected by using information from individual probe sets per gene (generating >1 expression value per gene). The doublets and triplets pools represent the number of significantly different genes that are targeted by 2 or 3 probe sets, respectively, and were analyzed by using combined values of those probe sets (generating only 1 expression value per gene). Journal of Allergy and Clinical Immunology  , e28DOI: ( /j.jaci ) Copyright © 2010 American Academy of Allergy, Asthma & Immunology Terms and Conditions

3 Fig 2 Selection of first-line VV-specific gene candidates using a cross-referencing approach. Eighty-three genes that were significantly affected by VV treatment in AD samples compared with both normal and psoriatic samples were cross-referenced with 106 genes that were significantly associated with AD in both comparisons with normal and psoriatic skin. The resulting pool of 71 genes represents VV-specific response in AD samples. Journal of Allergy and Clinical Immunology  , e28DOI: ( /j.jaci ) Copyright © 2010 American Academy of Allergy, Asthma & Immunology Terms and Conditions

4 Fig 3 Expression level of VV-specific gene candidates in unaffected skin from patients with AD detected by means of real-time RT-PCR. The relative message abundance of 9 genes that are listed on the x-axis was evaluated with real-time RT-PCR and compared with internal controls (3 housekeeping genes), as described in the Methods section, by using total RNA isolated from skin stimulated with VV in 3 randomly selected patients with AD. The changes in transcript abundance were identified by comparing AD values with randomly selected VV-stimulated control samples (n = 3, solid bar) or psoriatic samples (n = 3, gray bar) and expressed as mean FCs, with error bars representing SDs. Significant changes (P < .05) in transcript abundance are identified with asterisks. Full gene names are reported in Table III. Journal of Allergy and Clinical Immunology  , e28DOI: ( /j.jaci ) Copyright © 2010 American Academy of Allergy, Asthma & Immunology Terms and Conditions

5 Fig 4 EASI-associated linear regression graphs of the most representative genes involved in defense response. Expression values (y-axis) of ORM1, TLR4, and NLRP1 genes were plotted against EASI scores (x-axis), and correlation coefficients (R) and 2-tailed probability (P) values were calculated by using the Python Statistical package (see the Methods section). FCs were calculated as the ratio between expression values corresponding to the 3 lowest and 3 highest EASI scores (dashed ovals). Full gene names are reported in Table III. Journal of Allergy and Clinical Immunology  , e28DOI: ( /j.jaci ) Copyright © 2010 American Academy of Allergy, Asthma & Immunology Terms and Conditions

6 VV -induced transcriptional changes in psoriatic skin biopsy specimens from unaffected areas. A, Gene expression analysis was conducted with standard (solid circles) and clustering (dashed circles) approaches (see the Methods section). The single pool represents the number of significantly different genes that were detected by using information from individual probe sets per gene (generating >1 value per gene). The doublets and triplets pools represent the number of significantly different genes that are targeted by 2 or 3 probe sets, respectively, and were analyzed by using combined values of those probe sets (generating only 1 value per gene). B, Cross-referencing of VV effects in psoriatic (dashed circles) and AD (solid circles) skin. Journal of Allergy and Clinical Immunology  , e28DOI: ( /j.jaci ) Copyright © 2010 American Academy of Allergy, Asthma & Immunology Terms and Conditions

7 Genome alignment and hybridization pattern of ORM1 probe sets in skin tissues detected by using the GeneChip array. The snapshot of the GoldenPath browser (Human genome March 2006 Build) of chromosomal alignments of ORM1 gene and its corresponding probe sets. Each exon is shown as a horizontal solid rectangle where the narrow region of the last exon represents the 3′ untranslated region. The intronic regions are represented by solid lines, with arrows showing the direction of transcription. The SAM-calculated FC and false discovery rate (FDR) values are reported below the genome alignment diagram. *Not significant (false discovery rate >5). UCSC, University of California Santa Cruz. Journal of Allergy and Clinical Immunology  , e28DOI: ( /j.jaci ) Copyright © 2010 American Academy of Allergy, Asthma & Immunology Terms and Conditions

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