6 research outputs found
Disregulation of PRC2 function caused by the JAZF1-SUZ12 fusion protein
Polycomb repressive complex 2 (PRC2) maintains developmental genes specific for other cell types in a repressed state through methylation of histone H3 lysine 27 and formation of a repressive chromatin state. PRC2 is frequently mutated or disregulated in cancer. In addition to binding to chromatin, PRC2 also binds RNA and this prevents its interaction with chromatin. In endometrial stromal sarcoma (ESS), chromosomal translocation fuses the first 128 amino acids of JAZF1 in place of the N-terminal 93 amino acids of the PRC2 subunit SUZ12. However, the effects this has on PRC2 function are unknown. Here, I show that the JAZF1- SUZ12 fusion protein prevents association of PRC2 with the accessory subunits JARID2, EPOP and PALI1. Moreover, I demonstrate that JAZF1-SUZ12 prevents the transfer of PRC2 from RNA to chromatin. Consistent with this defect being due to loss of EPOP and JARID2 interaction, PRC2 is also unable to transfer from RNA to chromatin in JARID2, EPOP or PALI1 deficient embryonic stem cells. Finally, I show that JAZF1-SUZ12 reduces the binding of PRC2 to its target genes and disrupts regulation of key developmental genes during differentiation of mouse embryonic stem cells. Thus, this work reveals molecular defects in PRC2 function caused by the JAZF1-SUZ12 fusion protein and suggests that changes in the balance between PRC2 RNA and chromatin binding may play a role in oncogenesis
Cohesin-independent STAG proteins interact with RNA and localise to R-loops to promote complex loading
Most studies of cohesin function consider the Stromalin Antigen (STAG/SA) proteins as core complex members given their ubiquitous interaction with the cohesin ring. Here, we provide functional data to support the notion that the SA subunit is not a mere passenger in this structure, but instead plays a key role in the localization of cohesin to diverse biological processes and promotes loading of the complex at these sites. We show that in cells acutely depleted for RAD21, SA proteins remain bound to chromatin, cluster in 3D and interact with CTCF, as well as with a wide range of RNA binding proteins involved in multiple RNA processing mechanisms. Accordingly, SA proteins interact with RNA and are localised to R-loops where they contribute to R-loop regulation. Our results place SA1 within R-loop domains upstream of the cohesin complex and reveal a role for SA1 in cohesin loading which is independent of NIPBL, the canonical cohesin loader. We propose that SA1 takes advantage of structural R-loop platforms to link cohesin loading and chromatin structure with diverse functions. Since SA proteins are pan-cancer targets, and R-loops play an increasingly prevalent role in cancer biology, our results have important implications for the mechanistic understanding of SA proteins in cancer and disease
Cohesin-independent STAG proteins interact with RNA and R-loops and promote complex loading
Most studies of cohesin function consider the Stromalin Antigen (STAG/SA) proteins as core complex members given their ubiquitous interaction with the cohesin ring. Here, we provide functional data to support the notion that the SA subunit is not a mere passenger in this structure, but instead plays a key role in the localization of cohesin to diverse biological processes and promotes loading of the complex at these sites. We show that in cells acutely depleted for RAD21, SA proteins remain bound to chromatin, cluster in 3D and interact with CTCF, as well as with a wide range of RNA binding proteins involved in multiple RNA processing mechanisms. Accordingly, SA proteins interact with RNA, RNA binding proteins and R-loops, even in the absence of cohesin. Our results place SA1 on chromatin upstream of the cohesin ring and reveal a role for SA1 in cohesin loading which is independent of NIPBL, the canonical cohesin loader. We propose that SA1 takes advantage of structural R-loop platforms to link cohesin loading and chromatin structure with diverse functions. Since SA proteins are pan-cancer targets, and R-loops play an increasingly prevalent role in cancer biology, our results have important implications for the mechanistic understanding of SA proteins in cancer and disease
Cohesin-independent STAG proteins interact with RNA and R-loops and promote complex loading
Most studies of cohesin function consider the Stromalin Antigen (STAG/SA) proteins as core complex members given their ubiquitous interaction with the cohesin ring. Here, we provide functional data to support the notion that the SA subunit is not a mere passenger in this structure, but instead plays a key role in the localization of cohesin to diverse biological processes and promotes loading of the complex at these sites. We show that in cells acutely depleted for RAD21, SA proteins remain bound to chromatin, cluster in 3D and interact with CTCF, as well as with a wide range of RNA binding proteins involved in multiple RNA processing mechanisms. Accordingly, SA proteins interact with RNA, and R-loops, even in the absence of cohesin. Our results place SA1 on chromatin upstream of the cohesin ring and reveal a role for SA1 in cohesin loading which is independent of NIPBL, the canonical cohesin loader. We propose that SA1 takes advantage of structural R-loop platforms to link cohesin loading and chromatin structure with diverse functions. Since SA proteins are pan-cancer targets, and R-loops play an increasingly prevalent role in cancer biology, our results have important implications for the mechanistic understanding of SA proteins in cancer and disease
7th drug hypersensitivity meeting: part one
Table of contents
Oral Abstracts
O1 Functionally distinct HMGB1 isoforms correlate with physiological processes in drug-induced SJS/TEN
Daniel F. Carr, Wen-Hung Chung, Rosalind E. Jenkiins, Mas Chaponda, Gospel Nwikue, Elena M. Cornejo Castro, Daniel J. Antoine, Munir Pirmohamed
O2 Hypersensitivity reactions to beta-lactams, does the t cell recognition pattern influence the clinical picture?
Natascha Wuillemin, Dolores Dina, Klara K. Eriksson, Daniel Yerly
O3 Specific binding characteristics of HLA alleles associated with nevirapine hypersensitivity
Rebecca Pavlos, Elizabeth Mckinnin, David Ostrov, Bjoern Peters, Soren Buus, David Koelle, Abha Chopra, Craig Rive, Alec Redwood, Susana Restrepo, Austin Bracey, Jing Yuan, Silvana Gaudieri, Mary Carrington, David Haas, Simon Mallal, Elizabeth Phillips
O4 Do we need to measure total ige for the interpretation of analytical results of ImmunoCAP dnd 3gAllergy specific IgE?
Douwe De Boer, Paul Menheere, Chris Nieuwhof, Judith Bons
O5 Neutrophil activation in systemic anaphylaxis: results from the multicentric NASA study
Friederike Jonsson, Luc De Chaisemartin, Vanessa Granger, Caitlin Gillis, Aurelie Gouel, Catherine Neukirch, Fadia Dib, Pascale Roland Nicaise, Dan Longrois, Florence Tubach, Sylvie Martin, Pierre Bruhns, NASA Study Group
O6 Purpuric drug eruptions due to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) for non-small-cell lung cancer (NSCLC): a clinic-pathological study of 32 cases
Kai-Lung Chen, Shu-Ling Liao, Yi-Shuan Sheen, Yung-Tsu Cho, Che-Wen Yang, Jau-Yu Liau, Chia-Yu Chu
Poster presentations: Poster Walk 1âAnaphylaxis (P01âP09)
P1 Anaphylactic reactions during anaesthesia and the perioperative period
Rita Aguiar, Anabela Lopes, NatĂĄlia Fernandes, Leonor Viegas, M. A. Pereira-Barbosa
P2 Anaphylaxis to chlorhexidine: is there a cross-reactivity to alexidine?
Antonia BĂŒnter, Nisha Gupta, Tatjana Pecaric Petkovic, Nicole Wirth, Werner J. Pichler, Oliver Hausmann
P3 Cefotaxime-induced severe anaphylaxis in a neonate
Mehtap Yazicioglu, Pinar G. Ozdemir, Gokce Ciplak, Ozkan Kaya
P4 Clinical features and diagnosis of anaphylaxis resulting from exposure to chlorhexidine
Peter John Cooke
P5 Drug-induced anaphylaxis: five-year single-center survey
InĂȘs Mota, Ăngela Gaspar, Filipe Benito-Garcia, Marta Chambel, MĂĄrio Morais-Almeida
P6 Intraoperative severe anaphylactic reaction due to patent blue v dye
Luis Marques, Eva Alcoceba, Silvia Lara
P7 Kounis syndrome in the setting of anaphylaxis to diclofenac
Leonor Carneiro-LeĂŁo, Carmen Botelho, Eunice Dias-Castro, Josefina Cernadas
P8 Perioperative anaphylaxis audit: Royal Melbourne Hospital
Katherine Nicholls, William Lay, Olivia Smith, Christine Collins, Gary Unglik, Kymble Spriggs, Priscilla Auyeung, Jeremy McComish, Jo A. Douglass
P9 Recurrent peri-operative anaphylaxis: a perfect storm
Jonny G. Peter, Paul Potter
Poster Walk 2: DH regions and patient groups (P10âP19)
P10 A rare presentation of amoxicillin allergy in a young child
FabrĂcia Carolino, Eunice Dias De Castro, Josefina R. Cernadas
P11 Adverse drug reactions in children: antibiotics or virus?
Ana Sofia Moreira, Carmo Abreu, Eva Gomes
P12 Allergic reactions in invasive medical procedures
BĂĄrbara Kong Cardoso, Elza Tomaz, Sara Correia, Filipe InĂĄcio
P13 Antibiotic allergy in children: room for improvement
Annabelle Arnold, Natasha Bear, Kristina Rueter, Grace Gong, Michael OâSullivan, Saravanan Muthusamy, Valerie Noble, Michaela Lucas
P14 Drug hypersensitivity reactions in children and results of diagnostic evaluation
Neringa Buterleviciute, Odilija Rudzeviciene
P15 Nonimmediate cutaneous drug reactions in children: are skin tests required?
Ana Sofia Moreira, Carmo Abreu, Eva Gomes
P16 Pediatric patients with a history of penicillin allergy and a positive penicillin skin test may not be at an increased risk for multiple drug allergies
Sara May, Thanai Pongdee, Miguel Park
P17 Proved hypersensitivity to drugs according data of Vilnius University Hospital Santariskiu Klinikos
Linas Griguola, Arturas Vinikovas, Simona KaĆĄinskaite, Violeta Kvedariene
P18 Self-reported prevalence of drug hypersensitivity reactions among students in Celal Bayar University, Turkey
Ayse Aktas, Suheyla Rahman, Huseyin Elbi, Beyhan Cengiz Ozyurt
P19 Severe drug hypersensitivity reactions in pediatric age
Ozlem Cavkaytar, Betul Karaatmaca, Pinar Gur Cetinkaya, Saliha Esenboga, Umit M. Sahiner, Bulent E. Sekerel, Ozge Soyer
Poster Walk 3: Desensitisation (P20âP28)
P20 A protocol for desensitisation to valaciclovir
Celia Zubrinich, Bianca Tong, Mittal Patel, Michelle Giles, Robyn OâHehir, Robert Puy
P21 A rare case of desensitization to modafinil
Josefina Cernadas, LuĂs Amaral, FabrĂcia Carolino
P22 A sixteen-day desensitization protocol in delayed type hypersensitivity reactions to oral drugs
Semra Demir, Asli Gelincik, Muge Olgac, Raif Caskun, Derya Unal, Bahauddin Colakoglu, Suna Buyukozturk
P23 Desensitization to intravenous etoposide using a 12 and a 13-step protocol. Two cases report
Olga Vega Matute, Amalia Bernad, Gabriel Gastaminza, Roselle Madamba, Carlos Lacasa, M. J. Goikoetxea, Carmen DâAmelio, Jose RifĂłn, Nicolas MartĂnez, Marta Ferrer
P24 Drug desensitisation in oncology: the experience of an immunoallergology department for 5Â years
Carmelita Ribeiro, EmĂlia Faria, Cristina Frutuoso, Anabela Barros, RosĂĄrio Lebre, Alice Pego, Ana Todo Bom
P25 Filgrastim anaphylaxis: a successful desensitization protocol
Luis Amaral, Josefina Cernadas
P26 Galsulfase hypersensitivity and desensitization of a mucopolysaccharidosis VI patient
Luis Felipe Ensina, Carolina Aranda, Ines Camelo Nunes, Ana Maria Martins, Dirceu Solé
P27 Rapid drug desensitization with biologicals: one-center experience with four biologicals
Sevim Bavbek, Resat Kendirlinan, Pamir Ăerçi, Seda Tutluer, Sadan Soyyigit, Zeynep Ăelebi Sözener, ĂmĂŒr Aydin, Reyhan GĂŒmĂŒsburun
P28 Successful desensitization to a high dose of methotrexate in a delayed type hypersensitivity reaction
Josefina Cernadas, Leonor Carneiro-LeĂŁo, FabrĂcia Carolino, Marta Almeida
Poster Walk 4: SJS (P29âP38)
P29 Assessment of impact of infection on drug-induced severe cutaneous adverse reactions and rhabdomyolysis using the Japanese adverse drug event report database
Kimie Sai, Takuya Imatoh, Ryosuke Nakamura, Chisato Fukazawa, Yasushi Hinomura, Yoshiro Saito
P30 Characterization of erythema multiforme and severe cutaneous adverse reactions hospitalizations
Bernardo Sousa-Pinto, ClĂĄudia Correia, LĂdia Gomes, Sara Gil-Mata, LuĂs AraĂșjo, LuĂs Delgado
P31 Effects of infection on incidence/severity of SJS/TEN and myopathy in Japanese cases analyzed by voluntary case reports
Ryosuke Nakamura, Kimie Sai, Takuya Imatoh, Yoshimi Okamoto-Uchida, Koji Kajinami, Kayoko Matsunaga, Michiko Aihara, Yoshiro Saito
P32 Efficacy of tumor necrosis factorâa antagonists in StevensâJohnson syndrome and toxic epidermal necrolysis: a randomized controlled trial and immunosuppressive effects evaluation
Chuang-Wei Wang, Shih-Chi Su, Shuen-Iu Hung, Hsin-Chun Ho, Chih-Hsun Yang, Wen-Hung Chung
P33 Evolution of drug causality in StevensâJohnson syndrome and toxic epidermal necrolysis in Europe: analysis of 10Â years RegiSCAR-Study
Maren Paulmann, Ariane Dunant, Maja Mockenhaupt, Peggy Sekula, Martin Schumacher, Sylvia Kardaun, Luigi Naldi, Teresa Bellón, Daniel Creamer, Cynthia Haddad, Bruno Sassolas, Bénédicte Lebrun-Vignes, Laurence Valeyrie-Allanore, Jean-Claude Roujeau
P34 Long-term sequelae in patients with StevensâJohnson syndrome and toxic epidermal necrolysis: a 5-year analysis
Maren Paulmann, Carmen Kremmler, Peggy Sekula, Laurence Valeyrie-Allanore, Luigi Naldi, Sylvia Kardaun, Maja Mockenhaupt
P35 Major emotional complications and decreased health related quality of life among survivors of StevensâJohnson syndrome and toxic epidermal necrolysis
Roni P. Dodiuk-Gad, Cristina Olteanu, Anthony Feinstein, Rena Hashimoto, Raed Alhusayen, Sonia Whyte-Croasdaile, Yaron Finkelstein, Marjorie Burnett, Shachar Sade, Robert Cartotto, Marc Jeschke, Neil H. Shear
P36 Retrospective analysis of StevensâJohnson syndrome and toxic epidermal necrolysis in Japanese patients: treatment and outcome
Naoko Takamura, Yumiko Yamane, Setsuko Matsukura, Kazuko Nakamura, Yuko Watanabe, Yukie Yamaguchi, Takeshi Kambara, Zenro Ikezawa, Michiko Aihara
P37 Severe physical complications among survivors of StevensâJohnson syndrome and toxic epidermal necrolysis
Roni P. Dodiuk-Gad, Cristina Olteanu, Rena Hashimoto, Hall Chew, Raed Alhusayen, Sonia Whyte-Croasdaile, Yaron Finkelstein, Marjorie Burnett, Shachar Sade, Robert Cartotto, Marc Jeschke, Neil H. Shear
P38 StevensâJohnson syndrome/toxic epidermal necrolysis combined with haemophagocytic lymphohistiocytosis: a case report
Brittany Knezevic, Una Nic Ionmhain, Allison Barraclough, Michaela Lucas, Matthew Anstey
Poster Walk 5: Other organs/unexpected immune reactions (P39âP47)
P39 A case report of patient with anti-tuberculosis drug-related severe liver failure
Toru Usui, Xiaoli Meng, John Farrell, Paul Whitaker, John Watson, Neil French, Kevin Park, Dean Naisbitt
P40 Acute interstitial nephritis induced by ibuprofen
Ana Castro Neves, Susana Cadinha, Ana Moreira, J. P. Moreira Da Silva
P41 Cetuximab induced acneiform rashâtwo case reports
Daniela Ledic Drvar, Sandra Jerkovic Gulin, Suzana Ljubojevic Hadzavdic, Romana Ceovic
P42 Enteropathy associated with losartan
Ana Montoro De Francisco, TalĂa De Vicente JimĂ©nez, Amelia GarcĂa Luque, Natalia Rosado David, JosĂ© MÂȘ Mateos GalvĂĄn
P43 Granuloma annulare after therapy with canakinumab
Razvigor Darlenski
P44 Hypersensitivity eosinophilic myocarditis or acute coronary syndrome? Case report
Dario Gulin, Jozica Sikic, Jasna Cerkez Habek, Sandra Jerkovic Gulin, Edvard Galic
P45 Piperacillin-induced immune haemolytic anaemia: a severe and frequent complication of antibiotic treatment in patients with cystic fibrosis
Philip Specht, Doris Staab, Beate Mayer, Jobst Roehmel
P46 Progesterone triggered pemphigus foliaceus: case report
Sandra Jerkovic Gulin, Caius Solovan, Anca Chiriac
P47 Ramipril: triggered generalized pustular psoriasis
Paola Djurinec, Kresimir Kostovic, Mirna Bradamante, Sandra Jerkovic Gulin, Romana Ceovic
Poster Walk 6: NSAIDs (P48âP56)
P48 Aspirin desensitization in cardiovascular diseaseâPortuguese experience
Jose Pedro Almeida, Joana Caiado, Elisa Pedro, Pedro Canas Da Silva, Manuel Pereira Barbosa
P49 Asthma and/or rhinitis to NSAIDs with good tolerance to ASA
Gador Bogas, Natalia Blanca-LĂłpez, Diana PĂ©rez-Alzate, Inmaculada Doña, JosĂ© Augusto AgĂșndez, Elena GarcĂa-MartĂn, JosĂ© Antonio Cornejo-GarcĂa, Cristobalina Mayorga, MarĂa JosĂ© Torres, Gabriela Canto, Miguel Blanca
P50 Clinical characteristics of 196 patients with non-steroidal anti-inflammatory drug (NSAIDs) hypersensitivity
SengĂŒl Aksakal, AytĂŒl Zerrin Sin, Zeynep Peker Koç, Fatma DĂŒsĂŒnĂŒr GĂŒnsen, ĂmĂŒr Ardeniz, Emine Nihal Mete Gökmen, Okan GĂŒlbahar, Ali Kokuludag
P51 Development of immediate hypersensitivity to several NSAIDs maintaining good tolerance to ASA
Natalia PĂ©rez-SĂĄnchez, Natalia Blanca-LĂłpez, Diana PĂ©rez-Alzate, Gador Bogas, Inmaculada Doña, MarĂa Salas, MarĂa JosĂ© Torres, Miguel Blanca, Gabriela Canto
P52 Diagnosis of hypersensitivity reactions to paracetamol in a large series of cases
Inmaculada Doña, Maria Salas, Francisca Gomez, Natalia Blanca-Lopez, Diana Perez-Alzate, Gador Bogas, Esther Barrionuevo, Maria Jose Torres, Inmaculada Andreu, Miguel Ăngel Miranda, Gabriela Canto, Miguel Blanca
P53 Hypersensitivity to paracetamol according to the new classification of hypersensitivity to NSAIDs
Gabija DidĆŸiokaite, Olesia Gaidej, Simona KaĆĄinskaite, Violeta Kvedariene
P54 Ibuprofen and other aryl propionic derivates can induce immediate selective hypersensitivity responses
Diana Perez-Alzate, Natalia Blanca-López, Maria Isabel Garcimartin, Inmaculada Doña, Maria Luisa Somoza, Cristobalina Mayorga, Maria Jose Torres, Gador Bojas, Jose Antonio Cornejo-Garcia, Maria Gabriela Canto, Miguel Blanca
P55 Subjects developing immediate responses to several NSAIDs can be selective with good tolerance to ASA
Natalia Blanca-Lopez, Diana Pérez-Alzate, Francisco Javier Ruano Perez, Inmaculada Doña, Maria Luisa Somoza, Inmaculada Andreu, Miguel Angel Miranda, Cristobalina Mayorga, Maria Jose Torres, Jose Antonio Cornejo-Garcia, Miguel Blanca, Maria Gabriela Canto
P56 Utility of low-dose oral aspirin challenges for diagnosis of aspirin exacerbated respiratory disease
Elina Jerschow, Teresa Pelletier, Zhen Ren, Golda Hudes, Marek Sanak, Esperanza Morales, Victor Schuster, Simon D. Spivack, David Rosenstreich
Poster Walk 7: NSAID 2 (P57âP65)
P57 Alternate regulation of cyclooxygenase-2 (COX-2) MRNA expression may predispose patients to aspirin-induced exacerbations
Renato Erzen, Mira Silar, Nissera Bajrovic, Matija Rijavec, Mihaela Zidarn, Peter Korosec
P58 Anaphylaxis to diclofenac: what about the underlying mechanism?
Leonor Carneiro-LeĂŁo, FabrĂcia Carolino, LuĂs Amaral, Carmen Botelho, Eunice Dias-Castro, Josefina Cernadas
P59 COX-2 inhibitors: are they always a safe alternative in hypersensitivity to nonsteroidal anti-inflammatory drugs?
Luis Amaral, Fabricia Carolino, Eunice Castro, Josefina Cernadas
P60 Management of patients with history of NSAIDs reactions prior to coronary angioplasty
Mona Al-Ahmad, Tito Rodriguez
P61 Oral drug challenge with non-steroidal anti-inflammatory drug under spirometric control: clinical series of 110 patients
JoĂŁo Pedro Azevedo, EmĂlia Faria, Beatriz Tavares, Frederico Regateiro, Ana Todo-Bom
P62 Prevalence and incidence of analgesic hypersensitivity reactions in Colombia
Pablo Andrés Miranda, Bautista De La Cruz Hoyos
P63 Recent endoscopic sinus surgery lessens reactions during aspirin challenge in patients with aspirin exacerbated respiratory disease
Teresa Pelletier, Waleed Abuzeid, Nadeem Akbar, Marc Gibber, Marvin Fried, Weiguo Han, Taha Keskin, Robert Tamayev, Golda Hudes, Simon D. Spivack, David Rosenstreich, Elina Jerschow
P64 Safe use of imidazole salycilate in a case of multiple NSAIDs induced urticaria-angioedema
Elisa Boni, Marina Russello, Marina Mauro
P65 Selective hypersensitivity reactions to ibuprofenâseven years experience
Marta Ferreira Neto
Poster Walk 8: Epidemiological methods (P66âP72)
P66 Allopurinol hypersensitivity: a 7-year review
Lise Brosseron, Daniela Malheiro, Susana Cadinha, PatrĂcia Barreira, J. P. Moreira Da Silva
P67 Antibiotic allergy labelling is associated with increased hospital readmission rates in Australia
Brittany Knezevic, Dustin Sprigg, Michelle Trevenen, Jason Seet, Jason Trubiano, William Smith, Yogesh Jeelall, Sandra Vale, Richard Loh, Andrew Mclean-Tooke, Michaela Lucas
P68 Expertsâ opinions on severe cutaneous adverse drug reactions-report of a survey from the 9th international congress on cutaneous adverse drug reactions 2015
Roni P. Dodiuk-Gad, Cristina Olteanu, Wen-Hung Chung, Neil H. Shear
P69 HLA-A*31-positive AGEP with carbamazepine use and other severe cutaneous adverse drug reactions (SCARs) detected by electronic medical records screening
Sabine MĂŒller, Ursula Amstutz, Lukas Jörg, Nikhil Yawalkar, Stephan KrĂ€henbĂŒhl
P70 Patients with suspected drug allergy: a specific psychological profile?
Eunice Dias-Castro, Ana Leblanc, Laura Ribeiro, Josefina R. Cernadas
P71 Use of an electronic device and a computerized mathematic algorithm to detect the allergic drug reactions through the analysis of heart rate variability
Arantza Vega, Raquel Gutierrez Rivas, Ana Alonso, Juan Maria Beitia, Belén Mateo, Remedios Cårdenas, Juan Jesus Garcia-Dominguez
P72 Variation in ERAP influences risk for HLA-B*57:01 positive abacavir hypersensitivity
Rebecca Pavlos, Kaija Strautins, Ian James, Simon Mallal, Alec Redwood, Elizabeth Phillips
Poster Walk 9: DRESS/AGEP (P73âP81)
P73 A clinical case of DRESS syndrome in a child after administration of amoxicillin-clavulanic acid
Rita Aguiar, Anabela Lopes, Ana Neves, Maria Do CĂ©u Machado, M. A. Pereira-Barbosa
P74 Acute generalized exanthematous pustulosis (AGEP) induced by mesalazine, reliable and oftenly used drug to treat inflammatory bowel disease
Ceyda Tunakan Dalgiç, Emine Nihal Mete Gökmen, Fatma DĂŒsĂŒnĂŒr GĂŒnsen, Gökten Bulut, Fatma ĂmĂŒr Ardeniz, Okan GĂŒlbahar, Ali Kokuludag, AytĂŒl Zerrin Sin
P75 Changes of blood plasmacytoid dendritic cells, myeloid dendritic cells, and basophils during the acute stage of drug reaction with eosinophilia and systemic symptoms (DRESS) and other drug eruptions
Shao-Hsuan Hsu, Yung-Tsu Cho, Che-Wen Yang, Kai-Lung Chen, Chia-Yu Chu
P76 Characterization of isoniazid/rifampicin-specific t-cell responses in patients with DRESS syndrome
Young-Min Ye, Gyu-Young Hur, Hae-Sim Park, Seung-Hyun Kim
P77 DRESS syndrome secondary to sulfasalazine with delayed TEN: a case presentation
Syed Ali, Michaela Lucas, Peter N. Hollingsworth, Andrew P. C. Mclean-Tooke
P78 Drug rash with eosinophilia and systemic symptoms (DRESS) features according to the culprit drug
Zohra Chadly, Nadia Ben Fredj, Karim Aouam, Haifa Ben Romdhane, Naceur A. Boughattas, Amel Chaabane
P79 Drug reaction with eosinophilia and systemic symptoms induced by allopurinol: not always easy to diagnose
Marina Lluncor Salazar, Beatriz Pola, Ana Fiandor, Teresa BellĂłn, Elena RamĂrez, Javier DomĂnguez Ortega, Santiago Quirce, Rosario Cabañas
P80 Drug reaction with eosinophilia and systemic symptoms syndrome induced by two drugs simultaneously: a case report
Krasimira Baynova, Marina Labella, Manuel Prados
P81 The drug reaction with eosinophilia and systemic symptoms (DRESS) induced by the second-line antituberculosis drugs and EpsteinâBarr virus infection
Agne Ramonaite, Ieva Bajoriuniene, Brigita Sitkauskiene, Raimundas Sakalauskas
Poster Walk 10: Miscellaneous drug hypersensitivity (P82âP91)
P82 A case of cycloserine-induced lichenoid drug eruption confirmed with a lymphocatye transformation test
Jae-Woo Kwon, Shinyoung Park
P83 Allergic reaction to topical eye drops: 5Â yearsâ retrospective study in a drug allergy unit
Diana Silva, Leonor Carneiro LeĂŁo, Fabricia Carolino, Eunice Castro, Josefina Cernadas
P84 Allergy to heparins
Diana Perez-Alzate, Natalia Blanca-LĂłpez, Maria Luisa Somoza Alvarez, Maria Garcimartin, Maria Vazquez De La Torre, Francisco Javier Ruano PĂ©rez, Elisa Haroun, Gabriela Canto Diez
P85 Allopurinol-induced adverse drug reactions
Katinka Ănodi-Nagy, Ăgnes KinyĂł, Lajos KemĂ©ny, Zsuzsanna Bata-Csörgo
P86 Analysis of a population with immediate hypersensitivity to corticosteroids: an 11Â year review
Joana Sofia Pita, EmĂlia Faria, Rosa Anita Fernandes, Ana Moura, Nuno Sousa, Carmelita Ribeiro, Carlos Loureiro, Ana Todo Bom
P87 Anaphylaxis against mivacurium in a 12-months old boy at first-time exposure
Wolfgang PfĂŒtzner
P88 Antihistamine-exacerbated chronic spontaneous urticaria: a paradox?
Nadine Marrouche, Clive Grattan
P89 Anti-osteoporotic agents-induced cutaneous adverse drug reactions in Asians
Yu-En Chen, Chun-Bing Chen, Wen-Hung Chung, Yu-
Weaning from mechanical ventilation in intensive care units across 50 countries (WEAN SAFE): a multicentre, prospective, observational cohort study
International audienceBackground: Current management practices and outcomes in weaning from invasive mechanical ventilation are poorly understood. We aimed to describe the epidemiology, management, timings, risk for failure, and outcomes of weaning in patients requiring at least 2 days of invasive mechanical ventilation. Methods: WEAN SAFE was an international, multicentre, prospective, observational cohort study done in 481 intensive care units in 50 countries. Eligible participants were older than 16 years, admitted to a participating intensive care unit, and receiving mechanical ventilation for 2 calendar days or longer. We defined weaning initiation as the first attempt to separate a patient from the ventilator, successful weaning as no reintubation or death within 7 days of extubation, and weaning eligibility criteria based on positive end-expiratory pressure, fractional concentration of oxygen in inspired air, and vasopressors. The primary outcome was the proportion of patients successfully weaned at 90 days. Key secondary outcomes included weaning duration, timing of weaning events, factors associated with weaning delay and weaning failure, and hospital outcomes. This study is registered with ClinicalTrials.gov, NCT03255109. Findings: Between Oct 4, 2017, and June 25, 2018, 10 232 patients were screened for eligibility, of whom 5869 were enrolled. 4523 (77·1%) patients underwent at least one separation attempt and 3817 (65·0%) patients were successfully weaned from ventilation at day 90. 237 (4·0%) patients were transferred before any separation attempt, 153 (2·6%) were transferred after at least one separation attempt and not successfully weaned, and 1662 (28·3%) died while invasively ventilated. The median time from fulfilling weaning eligibility criteria to first separation attempt was 1 day (IQR 0â4), and 1013 (22·4%) patients had a delay in initiating first separation of 5 or more days. Of the 4523 (77·1%) patients with separation attempts, 2927 (64·7%) had a short wean (â€1 day), 457 (10·1%) had intermediate weaning (2â6 days), 433 (9·6%) required prolonged weaning (â„7 days), and 706 (15·6%) had weaning failure. Higher sedation scores were independently associated with delayed initiation of weaning. Delayed initiation of weaning and higher sedation scores were independently associated with weaning failure. 1742 (31·8%) of 5479 patients died in the intensive care unit and 2095 (38·3%) of 5465 patients died in hospital. Interpretation: In critically ill patients receiving at least 2 days of invasive mechanical ventilation, only 65% were weaned at 90 days. A better understanding of factors that delay the weaning process, such as delays in weaning initiation or excessive sedation levels, might improve weaning success rates. Funding: European Society of Intensive Care Medicine, European Respiratory Society