PMID- 36343890 OWN - NLM STAT- MEDLINE DCOM- 20230207 LR - 20230214 IS - 1534-4436 (Electronic) IS - 1081-1206 (Linking) VI - 130 IP - 2 DP - 2023 Feb TI - Interleukin-6 and cytokine release syndrome: A new understanding in drug hypersensitivity reactions. PG - 178-184 LID - S1081-1206(22)01905-6 [pii] LID - 10.1016/j.anai.2022.10.025 [doi] AB - Immediate drug hypersensitivity reactions (DHRs) are historically thought to be because of immunoglobulin E (IgE) cross-linking, causing mast cell degranulation and release of mediators like tryptase and histamine. With the increasing use of monoclonal antibodies, it has become apparent that some patients present atypical features during immediate DHRs, including occurrence in initial exposure, a lack of urticaria and angioedema, and the presence of fever, chills, rigors and musculoskeletal pain as the predominant symptoms. This observation led to the recognition of a novel phenotype of immediate DHRs called cytokine release syndrome (CRS). Other types of immediate DHRs include infusion-related reactions (which present similarly to CRS), and mixed reactions (which share overlapping features of both type 1 reactions and CRS). Desensitization to culprit drugs can be a lifesaving option in patients who develop immediate DHRs to first-line treatment. Whereas robust data are supporting the safety and efficacy of drug desensitization, breakthrough reactions can still occur and CRS seems to be a more common cause than type 1 reactions. Tryptase has been the only available biomarker for immediate DHRs and is associated with type 1 reactions. Emerging evidence consistently found the association between increased serum interleukin 6 level and DHR-related CRS, suggesting that interleukin 6 can be a novel biomarker, in addition to tryptase, to distinguish various types of DHRs. In the era of precision medicine, phenotyping and endotyping hypersensitivity reactions to chemotherapy and monoclonal antibodies using validated biomarkers should be part of routine drug allergy care. CI - Copyright (c) 2022 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Lee, Erika Yue AU - Lee EY AD - Department of Medicine, Institute of Health Policy, Management and Evaluation, Eliot Phillipson Clinician-Scientist Training Program, University of Toronto, Toronto, Ontario, Canada; Division of Allergy and Immunology, St. Michael's Hospital, Toronto, Ontario, Canada. Electronic address: erika.lee@mail.utoronto.ca. FAU - Jakubovic, Baruch D AU - Jakubovic BD AD - Department of Medicine, Humber River Hospital, Toronto, Ontario, Canada; Department of Medicine, Queen's University, Kingston, Ontario, Canada. LA - eng PT - Journal Article PT - Review DEP - 20221105 PL - United States TA - Ann Allergy Asthma Immunol JT - Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology JID - 9503580 RN - 0 (Interleukin-6) RN - EC 3.4.21.59 (Tryptases) RN - 0 (Biomarkers) RN - 0 (Antibodies, Monoclonal) SB - IM MH - Humans MH - Interleukin-6 MH - Tryptases MH - Cytokine Release Syndrome MH - *Hypersensitivity, Immediate/diagnosis MH - *Drug Hypersensitivity MH - Biomarkers MH - Antibodies, Monoclonal EDAT- 2022/11/08 06:00 MHDA- 2023/02/08 06:00 CRDT- 2022/11/07 19:27 PHST- 2022/08/08 00:00 [received] PHST- 2022/08/25 00:00 [revised] PHST- 2022/10/31 00:00 [accepted] PHST- 2022/11/08 06:00 [pubmed] PHST- 2023/02/08 06:00 [medline] PHST- 2022/11/07 19:27 [entrez] AID - S1081-1206(22)01905-6 [pii] AID - 10.1016/j.anai.2022.10.025 [doi] PST - ppublish SO - Ann Allergy Asthma Immunol. 2023 Feb;130(2):178-184. doi: 10.1016/j.anai.2022.10.025. Epub 2022 Nov 5.