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83. Molecular Basis for Dysregulated Activation of NKX2-5 in the Vascular Remodeling of Systemic Sclerosis

Author

Dritsoula, Athina, Papaioannou, Ioannis, Guerra, Sandra G., Fonseca, Carmen, Martin, Javier, Herrick, Ariane L., Abraham, David J., Denton, Christopher P., and Ponticos, Markella

Abstract

Objective: NKX2-5 is a homeobox transcription factor that is required for the formation of the heart and vessels during development, with significant postnatal down-regulation and reactivation in disease states, characterized by vascular remodeling. The purpose of this study was to investigate mechanisms that activate NKX2-5 expression in diseased vessels, such as systemic sclerosis (scleroderma; SSc)–associated pulmonary hypertension (PH), and to identify genetic variability that potentially underlies susceptibility to specific vascular complications. Methods: We explored NKX2-5 expression in biopsy samples from patients with SSc-associated PH and in pulmonary artery smooth muscle cells (PASMCs) from patients with scleroderma. Disease-associated putative functional single-nucleotide polymorphisms (SNPs) at the NKX2-5 locus were cloned and studied in reporter gene assays. SNP function was further examined through protein–DNA binding assays, chromatin immunoprecipitation assays, and RNA silencing analyses. Results: Increased NKX2-5 expression in biopsy samples from patients with SSc-associated PH was localized to remodeled vessels and PASMCs. Meta-analysis of 2 independent scleroderma cohorts revealed an association of rs3131917 with scleroderma (P = 0.029). We demonstrated that disease-associated SNPs are located in a novel functional enhancer, which increases NKX2-5 transcriptional activity through the binding of GATA-6, c-Jun, and myocyte-specific enhancer factor 2C. We also characterized an activator/coactivator transcription-enhancer factor domain 1 (TEAD1)/Yes-associated protein 1 (YAP1) complex, which was bound at rs3095870, another functional SNP, with TEAD1 binding the risk allele and activating the transcription of NKX2-5. Conclusion: NKX2-5 is genetically associated with scleroderma, pulmonary hypertension, and fibrosis. Functional evidence revealed a regulatory mechanism that results in NKX2-5 transcriptional activation in PASMCs through the interaction of an upstream promoter and a novel downstream enhancer. This mechanism can act as a model for NKX2-5 activation in cardiovascular disease characterized by vascular remodeling.

Published
2018
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85. Hydrogel and membrane scaffold formulations of Frutalin (breadfruit lectin) within a polysaccharide galactomannan matrix have potential for wound healing

Author

de Sousa, Felipe Domingos, primary, Vasconselos, Pedrinha Diógenes, additional, da Silva, Ayrles Fernanda Brandão, additional, Mota, Erika Freitas, additional, da Rocha Tomé, Adriana, additional, Mendes, Francisco Rogênio da Silva, additional, Gomes, Anida Maria Moraes, additional, Abraham, David J., additional, Shiwen, Xu, additional, Owen, James S., additional, Lourenzoni, Marcos Roberto, additional, Campos, Adriana Rolim, additional, Moreira, Renato de Azevedo, additional, and Monteiro-Moreira, Ana Cristina de Oliveira, additional

Published
2019
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88. Committee 703 report.

Author

Abraham, David J.

Subjects
A.B.A. Section of Intellectual Property Law -- Reports, Software protection -- Planning
Abstract

The ABA Intellectual Property Law Section Committee 703 on New Information Technology issued a report planning for the intellectual property protection of the intuitive interfaces and other new software under development. Fear of monopolization is the main concern for patent protection of new interfaces. Patent laws exist to give the public the benefits of technological progress which it might not receive if inventors were without the incentive of this limited-time monopoly.

Published
1998

89. Serum markers of pulmonary epithelial damage in systemic sclerosis‐associated interstitial lung disease and disease progression.

Author

Stock, Carmel J.W., Hoyles, Rachel K., Daccord, Cecile, Kokosi, Maria, Visca, Dina, De Lauretis, Angelo, Alfieri, Veronica, Kouranos, Vasilis, Margaritopoulos, George, George, Peter M., Molyneaux, Philip L., Chua, Felix, Maher, Toby M., Abraham, David J., Ong, Voon, Donovan, Jackie, Sestini, Piersante, Denton, Christopher P., Wells, Athol U., and Renzoni, Elisabetta A.

Subjects
INTERSTITIAL lung diseases, BIOMARKERS, DISEASE progression, GENDER, EPITHELIAL cells
Abstract

The clinical course of systemic sclerosis‐associated interstitial lung disease (SSc‐ILD) is highly variable and easily measurable biomarkers are needed to predict disease progression. Serum epithelial biomarker KL‐6 is predictive of disease progression measured by a decline in DLCO, regardless of ILD severity, and could provide increased prognostic ability to inform risk stratification in SSc‐ILD. See relatedEditorial Background and objective: The course of systemic sclerosis‐associated interstitial lung disease (SSc‐ILD) is highly variable, and accurate prognostic markers are needed. KL‐6 is a mucin‐like glycoprotein (MUC1) expressed by type II pneumocytes, while CYFRA 21‐1 is expressed by alveolar and bronchiolar epithelial cells. Both are released into the blood from cell injury. Methods: Serum KL‐6 and CYFRA 21‐1 levels were measured in a retrospective (n = 189) and a prospective (n = 118) cohort of SSc patients. Genotyping of MUC1 rs4072037 was performed. Linear mixed‐effect models were used to evaluate the relationship with change in lung function parameters over time, while association with survival was evaluated with Cox proportional hazard analysis. Results: In both cohorts, KL‐6 and CYFRA 21‐1 were highest in patients with lung involvement, and in patients with extensive rather than limited ILD. KL‐6 was higher in patients carrying the MUC1 rs4072037 G allele in both cohorts. In patients with SSc‐ILD, serum KL‐6, but not CYFRA 21‐1, was significantly associated with DLCO decline in both cohorts (P = 0.001 and P = 0.004, respectively), and with FVC decline in the retrospective cohort (P = 0.005), but not the prospective cohort. When combining the cohorts and subgrouping by severity (median CPI = 45.97), KL‐6 remained predictive of decline in DLCO in both milder (P = 0.007) and more severe disease (P = 0.02) on multivariable analysis correcting for age, gender, ethnicity, smoking history and MUC1 allele carriage. Conclusion: Our results suggest serum KL‐6 predicts decline in lung function in SSc, suggesting its clinical utility in risk stratification for progressive SSc‐ILD. [ABSTRACT FROM AUTHOR]

Published
2021
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90. Shinpo-sei: Japanese inventive step meets U.S. non-obviousness.

Author

Abraham, David J.

Subjects
Patent law -- Comparative analysis, Prior art (Patent law) -- Laws, regulations and rules, Graham v. John Deere Co. (383 U.S. 1 (1966))
Abstract

The Japanese patent law requirement of "inventive step" is very similar to the US patent law "non-obviousness" requirement, and the inventive step standard is a high enough hurdle that patent-flooding claims are unwarranted. The inquiries into how a claimed invention can be distinguished from prior art follow the same procedures in both nations. The Japanese Patent Office does require objective evidence of non-obviousness before the office has made a prima facie case, unlike US procedures.

Published
1995

91. Gene expression profiling reveals novel TGFβ targets in adult lung fibroblasts

Author

Pearson Jeremy D, Leask Andrew, Denton Christopher P, Nicholson Andrew G, Veeraraghavan Srihari, Wells Athol U, Bou-Gharios George, Shi-Wen Xu, Sestini Piersante, Howat Sarah, Abraham David J, Renzoni Elisabetta A, Black Carol M, Welsh Kenneth I, and du Bois Roland M

Subjects
Diseases of the respiratory system, RC705-779
Abstract

Abstract Background Transforming growth factor beta (TGFβ), a multifunctional cytokine, plays a crucial role in the accumulation of extracellular matrix components in lung fibrosis, where lung fibroblasts are considered to play a major role. Even though the effects of TGFβ on the gene expression of several proteins have been investigated in several lung fibroblast cell lines, the global pattern of response to this cytokine in adult lung fibroblasts is still unknown. Methods We used Affymetrix oligonucleotide microarrays U95v2, containing approximately 12,000 human genes, to study the transcriptional profile in response to a four hour treatment with TGFβ in control lung fibroblasts and in fibroblasts from patients with idiopathic and scleroderma-associated pulmonary fibrosis. A combination of the Affymetrix change algorithm (Microarray Suite 5) and of analysis of variance models was used to identify TGFβ-regulated genes. Additional criteria were an average up- or down- regulation of at least two fold. Results Exposure of fibroblasts to TGFβ had a profound impact on gene expression, resulting in regulation of 129 transcripts. We focused on genes not previously found to be regulated by TGFβ in lung fibroblasts or other cell types, including nuclear co-repressor 2, SMAD specific E3 ubiquitin protein ligase 2 (SMURF2), bone morphogenetic protein 4, and angiotensin II receptor type 1 (AGTR1), and confirmed the microarray results by real time-PCR. Western Blotting confirmed induction at the protein level of AGTR1, the most highly induced gene in both control and fibrotic lung fibroblasts among genes encoding for signal transduction molecules. Upregulation of AGTR1 occurred through the MKK1/MKK2 signalling pathway. Immunohistochemical staining showed AGTR1 expression by lung fibroblasts in fibroblastic foci within biopsies of idiopathic pulmonary fibrosis. Conclusions This study identifies several novel TGFβ targets in lung fibroblasts, and confirms with independent methods the induction of angiotensin II receptor type 1, underlining a potential role for angiotensin II receptor 1 antagonism in the treatment of lung fibrosis.

Published
2004
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92. BHPR research: qualitative1. Complex reasoning determines patients' perception of outcome following foot surgery in rheumatoid arhtritis

Author

Backhouse, Michael R., Vinall, Karen A., Redmond, Anthony, Helliwell, Philip, Keenan, Anne-Maree, Dale, Rebecca M., Thomas, Amanda, Aronson, Diane, Turner-Cobb, Julie, Sengupta, Raj, France, Brisa, Hill, Ingrid, Flurey, Caroline A., Morris, Marianne, Pollock, Jon, Hughes, Rod, Richards, Pam, Hewlett, Sarah, Ryan, Sarah, Lille, Kate, Adams, Jo, Haq, Inam, McArthur, Margaret, Goodacre, Lynne, Birt, Linda, Wilson, Oonagh, Kirwan, John, Dures, Emma, Quest, Enid, Rajak, Rizwan, Thomas, Tasmin, Lawson, Tom, Petford, Sharon, Hale, Elizabeth, Kitas, George D., Gooberman-Hill, Rachael, Jinks, Clare, Dziedzic, Krysia, Bouças, Sofia Barbosa, Hislop, Kelly, Rhodes, Carol, Ali, Fizzah, Ong, Bie Nio, White, Derrick, Hensor, Elizabeth, Ferguson, Anna M., Douiri, Abdel, Scott, David L., Lempp, Heidi, Halls, Serena, Law, Rebecca-Jane, Jones, Jeremy, Markland, David, Maddison, Peter, Thom, Jeanette, Thom, Jeanette M., Breslin, Anne, Kraus, Alexandra, Gordhan, Chandrika, Dennis, Sean, Connor, John, Chowdhary, Bhavani, Lottay, Neena, Juneja, Parmjit, Bacon, Paul A., Isaacs, David, Jack, James, Keller, Majella, Tibble, Jeremy, Hammond, Alison, Gill, Rachel, Tyson, Sarah, Tennant, Alan, Nordenskiold, Ulla, Pease, Emily E., Pease, Colin T., Trehane, Anne, Rahmeh, Fouz, Cornell, Patricia, Westlake, Sarah L., Rose, Katy, Alber, Catherine Fouad, Watson, Liam, Stratton, Richard, Lazarus, Mark, McNeilly, Natasha E., Waterfield, Jackie, Hurley, Mike, Greenwood, James, Clayton, Ann M., Lynch, Michael, Clewes, Adrian, Dawson, Julie, Abernethy, Veronica, Griffiths, Ann E., Chamberlain, Victoria A., McLoughlin, YokeMei, Campbell, Sophie, Hayes, Janita, Moffat, Claire, McKenna, Frank, Shah, Preeti, Williams, Ann, Rhys-Dillon, Ceril, Goodfellow, Rhian, Martin, James C., Bari, Farhan, Hughes, Gwenan, Thomas, Eleri, Baker, Sarah, Collins, David, Price, Elizabeth, Williamson, Lyn, Dunkley, Lisa, Youll, Matthew J., Rodziewicz, Mia, Reynolds, John A., Berry, Jacqueline, Pavey, Chee, Hyrich, Kimme, Gorodkin, Rachel, Wilkinson, Kate, Bruce, Ian, Barton, Anne, Silman, Alan, Ho, Pauline, Cornell, Tricia, Richards, Selwyn, Holmes, A., Parker, S., Smith, H., Briggs, N., Arthanari, S., Nisar, M., Thwaites, Catharine, Kamath, Sanjeet, Price, Shyra, Robinson, Sandra M., Walker, David, Coop, Hazel, Al-Allaf, Wahab, Charleton, Rebecca C., Griffiths, Bridget, Edwards, Elizabeth A., Partlett, Rosamund, Martin, Keith, Tarzi, Mike, Panthakalam, Sathianathan, Freeman, Tanya, Ainley, Louise, Turner, Michael, Hughes, Lyndsay, Russell, Bridget, Jenkins, Suzanne, Done, John, Young, Adam, Jones, Tadeusz, Gaywood, Ian C., Pande, Ira, Pradère, Marie-Josèphe, Bhaduri, Mahua, Smith, Angela, Cook, Haley, Abraham, Sonya, Ngcozana, Tanaka, Denton, Christopher P., Parker, Louise, Black, Carol M., Ong, Voon, Thompson, Nicola, White, Catherine, Duddy, Martin, Jobanputra, Paresh, Bacon, Pauline, Smith, Jacqueline, Richardson, Ann, Giancola, Giorgio, Soh, Vicky, Spencer, Simon, Greenhalgh, Ann, Hanson, Mark, De Lord, Denise, Lloyd, Mark, Wong, Henna, Wren, Damian, Grover, Bob, Hall, John, Neville, Cai, Alton, Peter, Kelly, Stephen, Bombardieri, Michele, Humby, Fran, Ng, Nora, Di Cicco, Maria, Hands, Rebecca, Epis, Oscar, Filer, Andrew, Buckley, Christopher, McInnes, Iain, Taylor, Peter, Pitzalis, Costantino, Freeston, Jane, Conaghan, Philip, Grainger, Andrew, O'Connor, Philip J., Evans, Rob, Emery, Paul, Hodgson, Richard, Fleischmann, Roy, Han, Chenglong, van der Heijde, Desiree, Xu, Weichun, Hsia, Elizabeth, Kavanaugh, Arthur, Gladman, Dafna, Chattopadhyay, Chandrabhusan, Beutler, Anna, Zayat, Ahmed S., Ellegard, Karen, Terslev, Lene, Wakefield, Richard J., Ciurtin, Coziana, Leandro, Maria, Dey, Dzifa, Nandagudi, Anupama, Giles, Ian, Shipley, Mike, Morris, Vanessa, Ioannou, John, Ehrenstein, Michael, Sen, Debajit, Chan, Marian, Quinlan, Tim M., Brophy, Richard, Mewar, Devesh, Patel, Dipti, Wilby, M. J., Pellegrini, Vincent, Eyes, Brian, Crooks, Daniel, Anderson, Marina, Ball, Elisabeth, McKeeman, Helen, Burns, James, Yau, Wing Hoi, Moore, Owen, Foo, Joanne, Benson, Claire, Patterson, Chris, Wright, Gary, Taggart, Allister, Drew, Sarah, Tanner, Lorraine, Sanyal, Kaushik, Bourke, Brian E., Alston, Claire, Baqai, Charlotte, Chard, Michael, Sandhu, Virinderjit, Jordan, Kelsey, Munns, Catherine, Zouita, Louisa, Shattles, Warren, Davies, Ursula, Makadsi, Raad, Griffith, Sian, Kiely, Patrick D., Dimofte, Ionela, Dabu, Mihaela, Dabu, Bogdan, Dobarro, David, Schreiber, Benjamin E., Warrell, Clare, Handler, Clive, Coghlan, Gerry, Denton, Chris, Ishorari, Jasmine, Bunn, Chris, Beynon, Huw, George Malal, Joby J., Boton-Maggs, Ben, Leung, Alexander, Farewell, Daniel, Choy, Ernest, Gullick, Nicola J., Choy, Ernest H., Wincup, Chris, Fisher, Ben, Charles, Peter, Pollard, Louise C., Kirkham, Bruce W., Ma, Margaret H., Ramanujan, Saroja, Cavet, Guy, Haney, Doug, Kingsley, Gabrielle H., Scott, David, Cope, Andrew, Singh, Animesh, Wilson, Jo, Isaacs, Anthony, Wing, Charlotte, McLaughlin, Maeve, Penn, Henry, Genovese, Mark C., Sebba, Anthony, Rubbert-Roth, Andrea, Scali, Juan, Zilberstein, Moshe, Thompson, Liz, Van Vollenhoven, Ronald, De Benedetti, Fabrizio, Brunner, Hermine, Allen, Roger, Brown, Diane, Chaitow, Jeffrey, Pardeo, Manuela, Espada, Graciela, Flato, Berit, Horneff, Gerd, Devlin, Clare, Kenwright, Andrew, Schneider, Rayfel, Woo, Patricia, Martini, Alberto, Lovell, Daniel, Ruperto, Nicola, John, Holly, Hale, Elizabeth D., Treharne, Gareth J., Carroll, Douglas, Mercer, Louise, Low, Audrey, Galloway, James, Watson, Kath, Lunt, Mark, Symmons, Deborah, Davies, Rebecca, Dixon, William, Balarajah, Sharmili, Sandhu, Amrita, Ariyo, Mercy, Rankin, Elizabeth, Sandoo, Aamer, van Zanten, Jet J. Veldhuijzen, Toms, Tracey E., Smith, Jacqueline P., Malik, Saadia, Toberty, Elizabeth, Thalayasingam, Nishanthi, Hamilton, Jennifer, Kelly, Clive, Puntis, Daniel, Saravanan, Vadivelu, Rynne, Martin, Heycock, Carol, Winter, Richard, Wardle, Phil, Toms, Tracey, Cadman, Susan, Nightingale, Peter, Kitas, George, Alhusain, Awal Z., Verstappen, Suzanne M., Mirjafari, Hoda, Charlton-Menys, Valentine, Bunn, Diane, Durrington, Paul, Cooney, Jennifer K., Moore, Jonathan P., Lemmey, Andrew, Jones, Jeremy G., Maddison, Peter J., Ahmad, Yasmeen A., Ahmed, Tazeen J., Leone, Francesca, Browne, Hannah K., Wig, Surabhi, Chevance, Aurelie, Moore, Tonia, Manning, Joanne, Vail, Andy, Herrick, Ariane L., Derrett-Smith, Emma, Hoyles, Rachel, Moinzadeh, Pia, Chighizola, Cecilia, Khan, Korsa, Abraham, David, Warrell, Clare E., Sykes, Rebecca, Muir, Lindsay, Ennis, Holly, Shiwen, Xu, Thompson, Katherine, Liu, Shangxi, Leask, Andrew, Abraham, David J., Strickland, Gemma, Pauling, John, Betteridge, Zoe, Dunphy, Juliet, Owen, Pat, McHugh, Neil, Abignano, Giuseppina, Cuomo, Giovanna, Buch, Maya H., Rosenberg, William M., Valentini, Gabriele, Del Galdo, Francesco, Jenkins, Jessica, Pauling, John D., Howell, Kevin, Nihtyanova, Svetlana, Fonseca, Carmen, Malaviya, Anshuman P., Hadjinicolaou, Andreas V., Nisar, Muhammad K., Ruddlesden, Michael, Furlong, Anita, Baker, Sharon, Hall, Frances C., Raut-Roy, Dominique, Peluso, Rosario, Dario Di Minno, M. N., Iervolino, Salvatore, Costa, Luisa, Atteno, Mariangela, Lofrano, Mariana, Soscia, Ernesto, Castiglione, Fabiana, Foglia, Francesca, Scarpa, Raffaele, Wallis, Dinny, Dougados, Maxime, Keystone, Edward, Heckaman, Michele, Mease, Philip, Landewé, Robert, Nguyen, Dianne, Winfield, Rachel A., Dyke, Claire, Clemence, Mark, Mackay, Kirsten, Haywood, Kirstie L., Packham, Jon, Jordan, Kelvin P., Davies, Helen, Brophy, Sinead, Irvine, Elizabeth, Cooksey, Roxanne, Dennis, Michael S., Siebert, Stefan, Ibrahim, Fowzia, Krueger, Gerald, Gathany, Tim, Mudivarthy, Surekha, Mack, Michael, Tandon, Neeta, Sieper, Joachim, Braun, Jürgen, van der Heijde, Désirée, Isaacs, John, Dahmen, Georg, Wollenhaupt, Jürgen, Schulze-Koops, Hendrik, Gsteiger, Sandro, Bertolino, Arthur, Hueber, Wolfgang, Tak, Paul P., Cohen, Carla J., Karaderi, Tugce, Pointon, Jennifer J., Wordsworth, Bryan P., Keidel, Sarah, Farrar, Claire, Appleton, Louise H., Adshead, Rebecca, Tahir, Hasan, Greenwood, Mandy, Donnelly, Simon P., Wajed, Julekha, and Kirkham, Bruce

Abstract

Background: Foot surgery is common in patients with RA but research into surgical outcomes is limited and conceptually flawed as current outcome measures lack face validity: to date no one has asked patients what is important to them. This study aimed to determine which factors are important to patients when evaluating the success of foot surgery in RA Methods: Semi structured interviews of RA patients who had undergone foot surgery were conducted and transcribed verbatim. Thematic analysis of interviews was conducted to explore issues that were important to patients. Results: 11 RA patients (9 ♂, mean age 59, dis dur = 22yrs, mean of 3 yrs post op) with mixed experiences of foot surgery were interviewed. Patients interpreted outcome in respect to a multitude of factors, frequently positive change in one aspect contrasted with negative opinions about another. Overall, four major themes emerged. Function: Functional ability & participation in valued activities were very important to patients. Walking ability was a key concern but patients interpreted levels of activity in light of other aspects of their disease, reflecting on change in functional ability more than overall level. Positive feelings of improved mobility were often moderated by negative self perception ("I mean, I still walk like a waddling duck”). Appearance: Appearance was important to almost all patients but perhaps the most complex theme of all. Physical appearance, foot shape, and footwear were closely interlinked, yet patients saw these as distinct separate concepts. Patients need to legitimize these feelings was clear and they frequently entered into a defensive repertoire ("it's not cosmetic surgery; it's something that's more important than that, you know?”). Clinician opinion: Surgeons' post operative evaluation of the procedure was very influential. The impact of this appraisal continued to affect patients' lasting impression irrespective of how the outcome compared to their initial goals ("when he'd done it ... he said that hasn't worked as good as he'd wanted to ... but the pain has gone”). Pain: Whilst pain was important to almost all patients, it appeared to be less important than the other themes. Pain was predominately raised when it influenced other themes, such as function; many still felt the need to legitimize their foot pain in order for health professionals to take it seriously ("in the end I went to my GP because it had happened a few times and I went to an orthopaedic surgeon who was quite dismissive of it, it was like what are you complaining about”). Conclusions: Patients interpret the outcome of foot surgery using a multitude of interrelated factors, particularly functional ability, appearance and surgeons' appraisal of the procedure. While pain was often noted, this appeared less important than other factors in the overall outcome of the surgery. Future research into foot surgery should incorporate the complexity of how patients determine their outcome Disclosure statement: All authors have declared no conflicts of interest

Published
2017

93. Frontiers of antifibrotic therapy in systemic sclerosis

Author

Distler, Jörg H W, Feghali-Bostwick, Carol, Soare, Alina, Asano, Yoshihide, Distler, Oliver, Abraham, David J, University of Zurich, and Distler, Jörg H W

Subjects
2403 Immunology, 2745 Rheumatology, 10051 Rheumatology Clinic and Institute of Physical Medicine, 2723 Immunology and Allergy, 610 Medicine & health
Published
2017

97. Changes in macrophage transcriptome associate with systemic sclerosis and mediate GSDMA contribution to disease risk

Author

Moreno-Moral, Aida, primary, Bagnati, Marta, additional, Koturan, Surya, additional, Ko, Jeong-Hun, additional, Fonseca, Carmen, additional, Harmston, Nathan, additional, Game, Laurence, additional, Martin, Javier, additional, Ong, Voon, additional, Abraham, David J, additional, Denton, Christopher P, additional, Behmoaras, Jacques, additional, and Petretto, Enrico, additional

Published
2018
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99. More Is Less: Multiple Citizenship, Political Participation, and Mr Erdogan

Author

Abraham, David J. and Abraham, David J.

Abstract

I must differ with my colleague, Peter Spiro, and those who consider dual citizenship unproblematic or even progressive and a facilitator of immigrant integration. The devaluation of citizenship that widespread dual citizenship both reflects and worsens is in fact bad for those who need democracy and seek social equality. It is also another moment in which political power has yielded to market power. At the same time, making dual citizenship illegal, or even discouraging it, is a pointless effort since even after the current nationalist-populist wave passes, human mobility is highly likely to remain at high levels.

Published
2017

100. Limited cutaneous systemic sclerosis skin demonstrates distinct molecular subsets separated by a cardiovascular development gene expression signature

Author

Derrett-Smith, Emma C., Martyanov, Viktor, Chighizola, Cecilia B., Moinzadeh, Pia, Campochiaro, Corrado, Khan, Korsa, Wood, Tammara A., Meroni, Pier Luigi, Abraham, David J., Ong, Voon H., Lafyatis, Robert, Whitfield, Michael L., Denton, Christopher P., Derrett-Smith, Emma C., Martyanov, Viktor, Chighizola, Cecilia B., Moinzadeh, Pia, Campochiaro, Corrado, Khan, Korsa, Wood, Tammara A., Meroni, Pier Luigi, Abraham, David J., Ong, Voon H., Lafyatis, Robert, Whitfield, Michael L., and Denton, Christopher P.

Abstract

Background: Systemic sclerosis (SSc; scleroderma) is an uncommon autoimmune rheumatic disease characterised by autoimmunity, vasculopathy and fibrosis. Gene expression profiling distinguishes scleroderma from normal skin, and can detect different subsets of disease, with potential to identify prognostic biomarkers of organ involvement or response to therapy. We have performed gene expression profiling in skin samples from patients with limited cutaneous SSc (lcSSc). Methods: Total RNA was extracted from clinically uninvolved skin biopsies of 15 patients with lcSSc and 8 healthy controls (HC). Gene expression profiling was performed on a DNA oligonucleotide microarray chip. Differentially expressed genes (DEG) were identified using significance analysis of microarrays (SAM). Functional enrichment analysis of gene signatures was done via g:Profiler. Results: There were 218 DEG between lcSSc and HC samples (false discovery rate <10%): 181/218 DEG were upregulated in lcSSc samples. Hierarchical clustering of DEG suggested the presence of two separate groups of lcSSc samples: limited 1 and limited 2. The limited-1 group (13 samples, 10 unique patients) showed upregulation of genes involved in cell adhesion, cardiovascular system (CVS) development, extracellular matrix and immune and inflammatory response. The CVS development signature was of particular interest as its genes showed very strong enrichment in response to wounding, response to transforming growth factor (TGF)-beta and kinase cascade. Neither limited-2 samples (six samples, five unique patients) nor HC samples showed functional enrichment. There were no significant differences in demographic or clinical parameters between these two groups. These results were confirmed using a second independent cohort. Conclusions: Our study suggests the presence of molecular subsets in lcSSc based on gene expression profiling of biopsies from uninvolved skin. This may reflect important differences in pathogenesis within thes

Published
2017

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