PMID- 33322143 OWN - NLM STAT- MEDLINE DCOM- 20210319 LR - 20240330 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 21 IP - 24 DP - 2020 Dec 13 TI - Monoclonal Antibodies and Airway Diseases. LID - 10.3390/ijms21249477 [doi] LID - 9477 AB - Monoclonal antibodies, biologics, are a relatively new treatment option for severe chronic airway diseases, asthma, allergic rhinitis, and chronic rhinosinusitis (CRS). In this review, we focus on the physiological and pathomechanisms of monoclonal antibodies, and we present recent study results regarding their use as a therapeutic option against severe airway diseases. Airway mucosa acts as a relative barrier, modulating antigenic stimulation and responding to environmental pathogen exposure with a specific, self-limited response. In severe asthma and/or CRS, genome-environmental interactions lead to dysbiosis, aggravated inflammation, and disease. In healthy conditions, single or combined type 1, 2, and 3 immunological response pathways are invoked, generating cytokine, chemokine, innate cellular and T helper (Th) responses to eliminate viruses, helminths, and extracellular bacteria/fungi, correspondingly. Although the pathomechanisms are not fully known, the majority of severe airway diseases are related to type 2 high inflammation. Type 2 cytokines interleukins (IL) 4, 5, and 13, are orchestrated by innate lymphoid cell (ILC) and Th subsets leading to eosinophilia, immunoglobulin E (IgE) responses, and permanently impaired airway damage. Monoclonal antibodies can bind or block key parts of these inflammatory pathways, resulting in less inflammation and improved disease control. FAU - Lyly, Annina AU - Lyly A AUID- ORCID: 0000-0001-7221-1227 AD - Inflammation Centre, Skin and Allergy Hospital, Helsinki University Hospital, University of Helsinki, P.O. Box 160, 00029 HUS Helsinki, Finland. AD - Department of Otorhinolaryngology-Head and Neck Surgery, Helsinki University Hospital, University of Helsinki, 00029 HUS Helsinki, Finland. FAU - Laulajainen-Hongisto, Anu AU - Laulajainen-Hongisto A AUID- ORCID: 0000-0001-5109-6944 AD - Department of Otorhinolaryngology-Head and Neck Surgery, Helsinki University Hospital, University of Helsinki, 00029 HUS Helsinki, Finland. FAU - Gevaert, Philippe AU - Gevaert P AD - Department of Otorhinolaryngology, Upper Airway Research Laboratory, Ghent University Hospital, 9000 Ghent, Belgium. FAU - Kauppi, Paula AU - Kauppi P AUID- ORCID: 0000-0002-1065-330X AD - Heart and Lung Center, Pulmonary Department, University of Helsinki and Helsinki University Hospital, 00029 HUS Helsinki, Finland. FAU - Toppila-Salmi, Sanna AU - Toppila-Salmi S AUID- ORCID: 0000-0003-0890-6686 AD - Inflammation Centre, Skin and Allergy Hospital, Helsinki University Hospital, University of Helsinki, P.O. Box 160, 00029 HUS Helsinki, Finland. AD - Medicum, Haartman Institute, University of Helsinki, 00029 HUS Helsinki, Finland. LA - eng PT - Journal Article PT - Review DEP - 20201213 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Antibodies, Monoclonal) RN - 0 (Cytokines) SB - IM MH - Antibodies, Monoclonal/*therapeutic use MH - Asthma/drug therapy/*immunology MH - Cytokines/metabolism MH - Humans MH - Immunity, Innate MH - Inflammation/*immunology/metabolism MH - Respiration Disorders/drug therapy/*immunology MH - Rhinitis, Allergic/drug therapy/*immunology MH - Sinusitis/drug therapy/*immunology/metabolism MH - T-Lymphocytes, Helper-Inducer/immunology PMC - PMC7763928 OTO - NOTNLM OT - airways OT - asthma OT - biologicals OT - chronic rhinosinusitis OT - monoclonal antibody COIS- S.T.-S. reports a grant of GSK and consultancies for AstraZeneca, ERT, Novartis, Sanofi Pharma and Roche. All these are outside the submitted work. P.G. is a speaker and advisory board member for Ablynx, ALK, Argenx, AstraZeneca, Genentech, Inc., Hal Allergy, Novartis, Regeneron, Roche, Sanofi, and Stallergenes. All other authors declare no conflicts of interest. EDAT- 2020/12/17 06:00 MHDA- 2021/03/20 06:00 PMCR- 2020/12/13 CRDT- 2020/12/16 01:02 PHST- 2020/11/25 00:00 [received] PHST- 2020/12/09 00:00 [revised] PHST- 2020/12/10 00:00 [accepted] PHST- 2020/12/16 01:02 [entrez] PHST- 2020/12/17 06:00 [pubmed] PHST- 2021/03/20 06:00 [medline] PHST- 2020/12/13 00:00 [pmc-release] AID - ijms21249477 [pii] AID - ijms-21-09477 [pii] AID - 10.3390/ijms21249477 [doi] PST - epublish SO - Int J Mol Sci. 2020 Dec 13;21(24):9477. doi: 10.3390/ijms21249477.