PMID- 34617287 OWN - NLM STAT- MEDLINE DCOM- 20220421 LR - 20220421 IS - 1398-9995 (Electronic) IS - 0105-4538 (Linking) VI - 77 IP - 4 DP - 2022 Apr TI - Advances and highlights in T and B cell responses to drug antigens. PG - 1129-1138 LID - 10.1111/all.15126 [doi] AB - The immunological mechanisms involved in drug hypersensitivity reactions (DHRs) are complex, and despite important advances, multiple aspects remain poorly understood. These not fully known aspects are mainly related to the factors that drive towards either a tolerant or a hypersensitivity response and specifically regarding the role of B and T cells. In this review, we focus on recent findings on this knowledge area within the last 2 years. We highlight new evidences of covalent and non-covalent interactions of drug antigen with proteins, as well as the very first characterization of naturally processed flucloxacillin-haptenated human leukocyte antigen (HLA) ligands. Moreover, we have analysed new insights into the identification of risk factors associated with the development of DHRs, such as the role of oxidative metabolism of drugs in the activation of the immune system and the discovery of new associations between DHRs and HLA variants. Finally, evidence of IgG-mediated anaphylaxis in humans and the involvement of specific subpopulations of effector cells associated with different clinical entities are also topics explored in this review. All these recent findings are relevant for the underlying pathology mechanisms and advance the field towards a more precise diagnosis, management and treatment approach for DHRs. CI - (c) 2021 The Authors. Allergy published by European Academy of Allergy and Clinical Immunology and John Wiley & Sons Ltd. FAU - Fernandez-Santamaria, Ruben AU - Fernandez-Santamaria R AUID- ORCID: 0000-0002-0255-4280 AD - Allergy Research Group, Instituto de Investigacion Biomedica de Malaga-IBIMA-ARADyAL, Malaga, Spain. FAU - Ariza, Adriana AU - Ariza A AUID- ORCID: 0000-0003-1524-9602 AD - Allergy Research Group, Instituto de Investigacion Biomedica de Malaga-IBIMA-ARADyAL, Malaga, Spain. FAU - Fernandez, Tahia D AU - Fernandez TD AUID- ORCID: 0000-0003-0625-2156 AD - Allergy Research Group, Instituto de Investigacion Biomedica de Malaga-IBIMA-ARADyAL, Malaga, Spain. AD - Departamento de Biologia Celular, Genetica y Fisiologia, Universidad de Malaga, Malaga, Spain. FAU - Cespedes, Jose A AU - Cespedes JA AD - Allergy Research Group, Instituto de Investigacion Biomedica de Malaga-IBIMA-ARADyAL, Malaga, Spain. FAU - Labella, Marina AU - Labella M AD - Allergy Research Group, Instituto de Investigacion Biomedica de Malaga-IBIMA-ARADyAL, Malaga, Spain. AD - Allergy Unit, Hospital Regional Universitario de Malaga-ARADyAL, Malaga, Spain. FAU - Mayorga, Cristobalina AU - Mayorga C AUID- ORCID: 0000-0001-8852-8077 AD - Allergy Research Group, Instituto de Investigacion Biomedica de Malaga-IBIMA-ARADyAL, Malaga, Spain. AD - Allergy Unit, Hospital Regional Universitario de Malaga-ARADyAL, Malaga, Spain. AD - Andalusian Center for Nanomedicine and Biotechnology-BIONAND, Malaga, Spain. FAU - Torres, Maria J AU - Torres MJ AUID- ORCID: 0000-0001-5228-471X AD - Allergy Research Group, Instituto de Investigacion Biomedica de Malaga-IBIMA-ARADyAL, Malaga, Spain. AD - Allergy Unit, Hospital Regional Universitario de Malaga-ARADyAL, Malaga, Spain. AD - Andalusian Center for Nanomedicine and Biotechnology-BIONAND, Malaga, Spain. AD - Departamento de Medicina, Universidad de Malaga, Malaga, Spain. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20211015 PL - Denmark TA - Allergy JT - Allergy JID - 7804028 RN - 0 (HLA Antigens) SB - IM MH - B-Lymphocytes MH - *Drug Hypersensitivity MH - HLA Antigens/genetics MH - Humans MH - T-Lymphocytes OTO - NOTNLM OT - B cell OT - T cell OT - basic immunology OT - drug allergy EDAT- 2021/10/08 06:00 MHDA- 2022/04/22 06:00 CRDT- 2021/10/07 07:10 PHST- 2021/03/31 00:00 [revised] PHST- 2021/07/19 00:00 [received] PHST- 2021/09/15 00:00 [accepted] PHST- 2021/10/08 06:00 [pubmed] PHST- 2022/04/22 06:00 [medline] PHST- 2021/10/07 07:10 [entrez] AID - 10.1111/all.15126 [doi] PST - ppublish SO - Allergy. 2022 Apr;77(4):1129-1138. doi: 10.1111/all.15126. Epub 2021 Oct 15.