Your browser doesn't support javascript.
Show: 20 | 50 | 100
Results 1 - 3 de 3
Filter
Add filters

Year range
1.
Sci Rep ; 11(1):4792, 2021.
Article | WHO COVID | ID: covidwho-1104550

ABSTRACT

The outbreak of the new severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is a public health emergency Asthma does not represent a risk factor for COVID-19 in several published cohorts We hypothesized that the SARS-CoV-2 proteome contains T cell epitopes, which are potentially cross-reactive to allergen epitopes We aimed at identifying homologous peptide sequences by means of two distinct complementary bioinformatics approaches Pipeline 1 included prediction of MHC Class I and Class II epitopes contained in the SARS-CoV-2 proteome and allergens along with alignment and elaborate ranking approaches Pipeline 2 involved alignment of SARS-CoV-2 overlapping peptides with known allergen-derived T cell epitopes Our results indicate a large number of MHC Class I epitope pairs including known as well as de novo predicted allergen T cell epitopes with high probability for cross-reactivity Allergen sources, such as Aspergillus fumigatus, Phleum pratense and Dermatophagoides species are of particular interest due to their association with multiple cross-reactive candidate peptides, independently of the applied bioinformatic approach In contrast, peptides derived from food allergens, as well as MHC class II epitopes did not achieve high in silico ranking and were therefore not further investigated Our findings warrant further experimental confirmation along with examination of the functional importance of such cross-reactive responses

2.
Allergologie ; 44(1):54, 2021.
Article | WHO COVID | ID: covidwho-1068435

ABSTRACT

Mit den Biologika stehen zunehmend mehr Therapeutika zur Verfügung, die zielgerichtet bestimmte Schaltstellen im Pathomechanismus immunologisch dominierter Erkrankungen adressieren Damit steht mehr die individuelle Krankheitsausprägung des einzelnen Patienten im Fokus der Diagnostik und Therapie (Präzisionsmedizin) Bezüglich der unterschiedlichen Phänotypen atopischer Erkrankungen war das schwere Asthma die erste Entität, für die Biologika zugelassen wurde, gefolgt von Urtikaria, und schließlich der atopischen Dermatitis und der chronischen Rhinosinusitis mit nasalen Polypen Die Erfahrungen in der Therapie des schweren Asthma bronchiale machten deutlich, dass die Intensität des Ansprechens auf eine Biologikatherapie entscheidend von der Qualität der klinischen und immunologischen Phänotypisierung der Patienten abhängt, wobei diese Unterscheidung z T schwierig sein kann und sich verschiedene Phänotypen durchaus überlagern können Das gilt auch für unterschiedliche Erkrankungen des atopischen Formenkreises, da Patienten in jeweils entsprechend unterschiedlicher Ausprägung unter mehreren atopischen Krankheiten gleichzeitig leiden können Es bilden sich bereits Biologika heraus, die eine geeignete Therapie für das allergische Asthma bronchiale, das häufig gemeinsam mit einer schweren Neurodermitis auftritt, sowie die chronische Rhinosinusitis mit nasalen Polypen darstellen können In der Praxis stellt sich dennoch zunehmend die Frage nach möglichen Biologika-Kombinationen zur Therapie komplexer Krankheitsbilder einzelner Patienten Dabei gilt es, das Nebenwirkungsprofil zu beachten, zu denen auch Hypersensitivitätsreaktionen gehören, deren diagnostisches und logistisches Management eine sichere und effiziente Therapie der Grunderkrankung zum Ziel haben muss Erhöhte Aufmerksamkeit gilt auch für eine Biologikatherapie bei Schwangerschaften und geplanten (planbaren) Impfungen sowie bestehenden Infektionen, wie zum Beispiel die SARS-CoV-2-Infektion Vor dem Start einer Biologikatherapie sollten der Immunstatus in Bezug auf chronische Virusund bakterielle Infektionen geprüft und gegebenenfalls vor Therapieeinleitung der Impfstatus aufgefrischt bzw fehlende Impfungen nachgeholt werden Derzeit liegen verlässliche Daten zum Effekt von Biologika auf die immunologische Situation der SARS-CoV-2-Infektion und COVID-19 nicht vor Daher ist die Erforschung und Entwicklung geeigneter Diagnostikverfahren zur Erfassung immunologisch bedingter Nebenwirkungen sowie der Erfassung potenzieller Therapie-Responder und -Non-Responder von großer BedeutungAlternate abstract:With the advent of biologicals, more and more therapeutics are available that specifically address specific switch points in the pathomechanism of immunologically dominated diseases Thus, the focus of diagnostics and therapy (precision medicine) is more on the individual disease characteristics of the individual patient Regarding the different phenotypes of atopic diseases, severe asthma was the first entity for which biologicals were approved, followed by urticaria, and finally atopic dermatitis and chronic rhinosinusitis with nasal polyps Experience in the treatment of severe bronchial asthma has shown that the intensity of the response to biological therapy depends on the quality of clinical and immunological phenotyping of the patients This also applies to different diseases of the atopic form, as patients can suffer from several atopic diseases at the same time, each with different characteristics Biologics are already emerging that may represent a suitable therapy for allergic bronchial asthma, which often occurs together with severe neurodermatitis, and chronic rhinosinusitis with nasal polyps In practice, however, the question of possible combinations of biologicals for the therapy of complex clinical pictures of individual patients is increasingly arising In doing so, the side effect profile must be taken into account, including hypersensitivity reactions, whose diagnostic and logistical management must aim at a safe and e ficient therapy of the underlying disease Increased attention must also be paid to biological therapy in pregnancy and planned (predictable) vaccinations as well as existing infections, such as SARS-CoV-2 infection Before starting a biological therapy, the immune status should be checked with regard to chronic viral and bacterial infections and, if necessary, the vaccination status should be refreshed or missing vaccinations should be made up for before starting therapy Currently, reliable data on the effect of biologicals on the immunological situation of SARS-CoV-2 infection and COVID-19 are not available Therefore, research and development of suitable diagnostic methods for detection of immunologically caused side effects as well as detection of potential therapy responders and non-responders is of great importance

3.
Allergol Select ; 5:1-25, 2021.
Article | WHO COVID | ID: covidwho-1022168

ABSTRACT

With the advent of biologicals, more and more therapeutics are available that specifically address specific switch points in the pathomechanism of immunologically dominated diseases Thus, the focus of diagnostics and therapy (precision medicine) is more on the individual disease characteristics of the individual patient Regarding the different phenotypes of atopic diseases, severe asthma was the first entity for which biologicals were approved, followed by urticaria, and finally atopic dermatitis and chronic rhinosinusitis with nasal polyps Experience in the treatment of severe bronchial asthma has shown that the intensity of the response to biological therapy depends on the quality of clinical and immunological phenotyping of the patients This also applies to different diseases of the atopic form, as patients can suffer from several atopic diseases at the same time, each with different characteristics Biologics are already emerging that may represent a suitable therapy for allergic bronchial asthma, which often occurs together with severe neurodermatitis, and chronic rhinosinusitis with nasal polyps In practice, however, the question of possible combinations of biologicals for the therapy of complex clinical pictures of individual patients is increasingly arising In doing so, the side effect profile must be taken into account, including hypersensitivity reactions, whose diagnostic and logistical management must aim at a safe and efficient therapy of the underlying disease Increased attention must also be paid to biological therapy in pregnancy and planned (predictable) vaccinations as well as existing infections, such as SARS-CoV-2 infection Before starting a biological therapy, the immune status should be checked with regard to chronic viral and bacterial infections and, if necessary, the vaccination status should be refreshed or missing vaccinations should be made up for before starting therapy Currently, reliable data on the effect of biologicals on the immunological situation of SARS-CoV-2 infection and COVID-19 are not available Therefore, research and development of suitable diagnostic methods for detection of immunologically caused side effects as well as detection of potential therapy responders and non-responders is of great importance

SELECTION OF CITATIONS
SEARCH DETAIL