https://www.selleckchem.com/products/pi3k-hdac-inhibitor-i.html Cyclin-dependent kinase 12 (CDK12) aberrations have been reported as a biomarker of response to immunotherapy for metastatic castration-resistant prostate cancer (mCRPC). Herein, we characterize CDK12-mutated mCRPC, presenting clinical, genomic, and tumor-infiltrating lymphocyte (TIL) data. Patients with mCRPC consented to the molecular analyses of diagnostic and mCRPC biopsies. Genomic analyses involved targeted next-generation (MiSeq; Illumina) and exome sequencing (NovaSeq; Illumina). TILs were assessed by validated immunocytochemistry coupled with deep learning-based artificial intelligence analyses including multiplex immunofluorescence assays for CD4, CD8, and FOXP3 evaluating TIL subsets. The control group comprised a randomly selected mCRPC cohort with sequencing and clinical data available. Biopsies from 913 patients underwent targeted sequencing between February 2015 and October 2019. Forty-three patients (4.7%) had tumors with CDK12 alterations. CDK12-altered cancers had distinctive features,s that seem to associate with worse outcome and may be immunosuppressive.See related commentary by Lotan and Antonarakis, p. 380. Relapsed acute myeloid leukemia (AML) post allogeneic hematopoietic cell transplantation (allo-HCT) has a dismal prognosis. To assess prognosis of patients with recurrent AML post allo-HCT over time, we analyzed European Society for Blood and Marrow Transplantation registry data of 8,162 adult patients with AML who relapsed between 2000 and 2018 after allo-HCT performed in first complete remission from matched sibling, unrelated, or haploidentical donors. The 2-year overall survival (OS) rate from relapse was 17%. For 3,630 patients, <50 years of age, the 2-year OS continuously increased from 16% between 2000 and 2004 to 18% for 2005-2009, to 21% for 2010-2014, and to 26% for 2015-2018 ( = 0.001). Improvement over time was noted both after relapse within and beyond 6 months fro