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Proteomic Analysis of Humoral Immune Components in Bronchoalveolar Lavage of Patients Infected or Colonized by Aspergillus fumigatus

Abstract : Humoral immune components have been individually studied in the context of interaction of host with , a major airborne fungal pathogen. However, a global view of the multitude and complex nature of humoral immune components is needed to bring new insight into host- interaction. Therefore, we undertook comparative proteomic analysis of the bronchoalveolar lavage fluid collected from individuals infected or colonized with versus controls, to identify those alveolar humoral components affected upon infection. Complement proteins C1q, C8 beta-chain, factor-H, ficolin-1, ficolin-2, mannan binding lectin serine peptidase 2, pentraxin-3 and the surfactant protein-D were identified as the major humoral immune components affected by infection and colonization. Based on this observation, we hypothesize that crosstalk between these humoral components is essential during host- interaction giving new specific leads to study for better understanding the pathogenesis. Furthermore, the affected humoral components could be potential diagnostic markers of infection or colonization.
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Submitted on : Monday, May 31, 2021 - 4:21:51 PM
Last modification on : Thursday, April 14, 2022 - 3:18:01 PM

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Sarah Dellière, Magalie Duchateau, Sarah Sze Wah Wong, Quentin Giai Gianetto, Hélène Guegan, et al.. Proteomic Analysis of Humoral Immune Components in Bronchoalveolar Lavage of Patients Infected or Colonized by Aspergillus fumigatus. Frontiers in Immunology, Frontiers, 2021, 12, pp.677798. ⟨10.3389/fimmu.2021.677798⟩. ⟨pasteur-03243511⟩

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