IKZF3 (IKAROS Family Zinc Finger 3)

Mechanistically, Tazemetostat appears to reduce IKZF1 binding to the IRF4 promoter and super-enhancer, explaining how the combination with IMiDs/CELMoDs which also have this effect may reach the threshold required to suppress IRF4 expression and ultimately inhibit MM cell growth in resistant cell lines. Our findings highlight a potential strategy for treating MM patients with IMiD resistance.

This suggests that IKZF3 is a good biological indicator for tumors and may become a new therapeutic target for tumors. A systematic elaboration of the latest research progress on the IKZF3 gene structure, physiological functions, tumor regulation, and treatment resistance can provide reference and scientific basis for future tumor therapy.

With frontline therapeutic strategies increasingly employing quadruplet induction regimens and prolonged lenalidomide maintenance, resistance to traditional IMiDs has become more prevalent, creating an urgent need for next-generation cereblon E3 ligase modulators (CELMoDs) capable of overcoming IMiD refractoriness and enhancing the immunologic microenvironment. Iberdomide (CC-220) and mezigdomide (CC-92480) are rationally engineered CELMoDs designed to achieve deeper degradation of Ikaros (IKZF1) and Aiolos (IKZF3), restore cereblon-mediated activity, and potentiate immune effector responses...We examine how their pharmacodynamic properties differ from classical IMiDs, their relevance in triple-class and penta-refractory MM, and their integration into emerging combination strategies with monoclonal antibodies and T-cell-redirecting immunotherapies. Special emphasis is placed on ongoing and future trials that may refine their therapeutic positioning, alongside a critical appraisal of the limitations and future directions of this rapidly advancing drug class.

This study substantially advances our understanding of the etiology of LUAD in East Asia and could be useful in developing translational applications.

Second, this mutation increases protein stability, resulting in higher levels of protein expression. This study provides insight into mechanisms by which IKZF3 mutations promote immunodeficiency, leukemia, and lymphoma.

This study provides a comprehensive genomic profile of T-LGLL, identifying recurrent somatic mutations and commonly affected pathways. Notably, frequent alterations were observed in the FAS-FASL signaling pathway, underscoring its potential as a target for therapeutic development.

Instead of keratocystoma being defined narrowly by IRF2BP2::RUNX2 fusions, there may exist a broader spectrum of RUNX1/2-rearranged cystic, squamous salivary gland tumors. More cases will be needed to further define this emerging family of neoplasms.

Additionally, MEIS2 promotes BCMA expression and antagonizes repression of BCMA by IMiD and CELMoD for survival of myeloma cells. Thus, CDK4/6i reverses MEIS2 inhibition of CRL4 CRBN in cooperation with IMiD and CELMoD, and mitigates MEIS2-mediated BCMA signaling for survival, suggesting targeting MEIS2 and CDK4/6 as a new strategy to advance immunomodulatory drug therapy in multiple myeloma.

Furthermore, combining p300/CBP KAT inhibition and therapeutics with orthogonal mechanisms targeting transcription in MM elicited synergistic anti-tumor effects. Together, these data motivate the ongoing clinical development of p300/CBP KAT inhibition in MM.

Golcadomide exhibited rapid, deep, and sustained degradation of transcription factors IKZF1 and IKZF3, surpassing the anti-tumor activity of the IMiD® agent lenalidomide in preclinical models. Pharmacological and CRISPR screening further revealed genes and pathways underlying golcadomide's antitumor efficacy. These findings supported golcadomide as a promising drug candidate for DLBCL, providing a strong rationale for future golcadomide-based regimens.

Eviction of Ikaros is rapidly reversed by addition of the PBK-inhibitor OTS514, revealing dynamic regulation by kinase and phosphatase activities...PBK-deficient cells were able to divide but showed altered chromatin accessibility and nucleosome positioning consistent with CTCF retention. Our studies reveal that PBK controls the dissociation of selected factors from condensing mitotic chromosomes and contributes to their compaction.

Building on the success of immunomodulatory agents, CRBN E3 ligase modulators (CELMoDs), iberdomide (CC-220) and mezigdomide (CC-92480), have been designed as promising and more selective agents. Combining CELMoDs with cellular therapies significantly improves the response rate in MM patients. In this paper, based on the literature presented at the Annual Meeting of the American Society of Hematology (ASH), the American Society of Clinical Oncology (ASCO), the International Myeloma Society (IMS), and the European Hematology Association (EHA) in the 2020-2025 timeframe, we explore the rationale and emerging evidence of combining CELMoDs with immunotherapies, and their use as a bridge to transplant or as post-ASCT maintenance therapy in MM.