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گت بلاگز Internet Airway autoimmune responses in severe eosinophilic asthma following low-dose Mepolizumab therapy / دانلود فایل

مشخصات کلی Airway autoimmune responses in severe eosinophilic asthma following low-dose Mepolizumab therapy

نویسنده کتاب (Author):

Mukherjee, Manali; Lim, Hui; Thomas, Sruthi; Miller, Douglas; Kjarsgaard, Melanie; Tan, Bruce; Sehmi, Roma; Khalidi, Nader; Nair, Parameswaran

انتشارات (Publisher):

BioMed Central Ltd. 2017-01-06

ویرایش و نوع فایل (Edition/Format):

 Downloadable article : English

منبع (Database):

WorldCat

عنوان ژورنال (Publication):

BioMed Central Ltd.

موضوع (Subject):

Mepolizumab, Autoantibodies, Autoimmune, Eosinophilic asthma, IL-5, Sputum, Immune complex      

توضیحات خلاصه (Summary):

Abstract Background Anti-interleukin (IL)-5 monoclonal antibodies as an eosinophil-depleting strategy is well established, with Mepolizumab being the first biologic approved as an adjunct treatment for severe eosinophilic asthma. Case presentation A 62-year old woman diagnosed with severe eosinophilic asthma showed poor response to Mepolizumab therapy (100 mg subcutaneous dose/monthly) and subsequent worsening of symptoms. The treatment response to Mepolizumab was monitored using both blood and sputum eosinophil counts. The latter was superior in assessing deterioration in symptoms, suggesting that normal blood eosinophil count may not always indicate amelioration or adequate control of the ongoing eosinophil-driven disease process. This perplexing situation of persistent airway eosinophilia and increased steroid insensitivity despite an anti-eosinophil therapy can be explained if the administered dose of the mAb was inadequate in comparison to the target antigen. The resultant immune complexes could act as ‘cytokine depots’, protecting the potency of the ‘bound’ IL-5, thereby sustaining the eosinophilic inflammation within the target tissue. Molecular analysis of the sputum indicated the development of a polyclonal autoimmune response as well as an increase in group 2 innate lymphoid cells, two novel observations in severe eosinophilic asthma, which were associated with indices of disease severity and progression. This case highlights the possibility of a previously unrecognised autoimmune-mediated worsening of asthma perhaps triggered by immune complexes formed due to inadequate dosing of administered monoclonal antibodies in the target tissue. Conclusions While anti-IL5 mAb therapy is an exciting novel option to treat patients with severe asthma, there is the rare possibility of worsening of asthma as observed in this case study, due to local autoimmune mechanisms precipitated by potential inadequate airway levels of the monoclonal antibody.  Read more…

ژانر / فرم:Case report

موضوع:Internet resource

نوع منبع:Internet Resource, Article

تمام نویسندگان / همکاران: Mukherjee, Manali; Lim, Hui; Thomas, Sruthi; Miller, Douglas; Kjarsgaard, Melanie; Tan, Bruce; Sehmi, Roma; Khalidi, Nader; Nair, Parameswaran

شناسه OCLC:979265071

Language Note:English


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