{"title":"[Development and prospects of bispecific antibodies for multiple myeloma].","authors":"Junichiro Yuda","doi":"10.11406/rinketsu.65.1049","DOIUrl":null,"url":null,"abstract":"<p><p>Patients with triple-class refractory multiple myeloma once had a poor prognosis, but recently developed bispecific antibodies (bsAbs) targeting B-cell maturation antigen (BCMA), G protein-coupled receptor 5D (GPRC5D), and Fc receptor-homolog 5 (FcRH5) have shown significant clinical activity in these patients. However, responses to bsAbs are not universal, and resistance often develops during therapy. Mechanisms that mediate resistance may be tumor-intrinsic or immune-dependent. Tumor-intrinsic factors include antigen loss (biallelic or functional) due to deletion or mutation of target genes, increased soluble BCMA (for BCMA targeting bsAbs), high tumor burden, and extramedullary disease. Immune-mediated resistance highly depends on T cell fitness and the resistant immune environment. This article describes bispecific antibodies against multiple myeloma that are currently being developed.</p>","PeriodicalId":93844,"journal":{"name":"[Rinsho ketsueki] The Japanese journal of clinical hematology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"[Rinsho ketsueki] The Japanese journal of clinical hematology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.11406/rinketsu.65.1049","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Patients with triple-class refractory multiple myeloma once had a poor prognosis, but recently developed bispecific antibodies (bsAbs) targeting B-cell maturation antigen (BCMA), G protein-coupled receptor 5D (GPRC5D), and Fc receptor-homolog 5 (FcRH5) have shown significant clinical activity in these patients. However, responses to bsAbs are not universal, and resistance often develops during therapy. Mechanisms that mediate resistance may be tumor-intrinsic or immune-dependent. Tumor-intrinsic factors include antigen loss (biallelic or functional) due to deletion or mutation of target genes, increased soluble BCMA (for BCMA targeting bsAbs), high tumor burden, and extramedullary disease. Immune-mediated resistance highly depends on T cell fitness and the resistant immune environment. This article describes bispecific antibodies against multiple myeloma that are currently being developed.