PMID- 26834954 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20160202 LR - 20200930 IS - 2040-6207 (Print) IS - 2040-6215 (Electronic) IS - 2040-6207 (Linking) VI - 7 IP - 1 DP - 2016 Feb TI - Current challenges and novel treatment strategies in double hit lymphomas. PG - 52-64 LID - 10.1177/2040620715608091 [doi] AB - High-grade B-cell lymphomas with recurrent chromosomal break points have been termed 'double hit lymphoma' (DHL). The most commonly seen DHL is diffuse large B-cell lymphoma (DLBCL) with t(14;18) and t(8;14) or t(8;22) resulting in overexpression of BCL2 and MYC, respectively. The increased proliferation due to MYC overexpression, without the ability for an apoptotic brake as a result of BCL2 overexpression, results in 'the perfect storm of oncogenesis'. Thus this disease presents a number of diagnostic and therapeutic challenges for the hematologist. The first and foremost challenge is to recognize the DHL. As different morphological entities can be affected it is incumbent on pathologists and clinicians to maintain a high index of suspicion especially in disease that appears unusually aggressive or refractory to therapy. Diagnosis by fluorescence in situ hybridization (FISH) is a sensitive and specific method for detection of the disease but is time-consuming and expensive. While detection by immunohistochemistry (IHC) is sensitive and correlates with survival, standardized methods for this are not widely agreed upon. The second and equally important challenge in DHL is optimizing clinical outcome in a group of patients for whom the prognosis is widely regarded as poor. While improvements have been achieved by dose escalating standard chemotherapeutic regimens, many patients continue to do badly. Furthermore as a disease of aging many patients are unsuitable for dose-intensive chemotherapy regimens. There are now multiple novel targeted agents in various stages of clinical development that offer hope for better outcomes without undue toxicity. Among the most exciting of these developments include specific inhibitors of both BCL2 and MYC. FAU - Anderson, Mary Ann AU - Anderson MA AD - The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade Parkville, Victoria 3052, Australia. FAU - Tsui, Alpha AU - Tsui A AD - Department of Pathology, Royal Melbourne Hospital, Parkville, Australia. FAU - Wall, Meaghan AU - Wall M AD - Victorian Cancer Cytogenetics Service, St Vincent's Hospital, Fitzroy, Australia. FAU - Huang, David C S AU - Huang DC AD - Departments of Medical Biology and Medicine, Faculty of Medicine, University of Melbourne, Parkville, Australia. FAU - Roberts, Andrew W AU - Roberts AW AD - Department of Clinical Hematology and Bone Marrow Transplant, Royal Melbourne Hospital, Parkville, Australia. LA - eng PT - Journal Article PT - Review PL - England TA - Ther Adv Hematol JT - Therapeutic advances in hematology JID - 101549589 PMC - PMC4713886 OTO - NOTNLM OT - BCL-2 OT - MYC OT - diffuse large B-cell lymphoma OT - double hit lymphoma COIS- Conflict of interest statement: The author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: Research funding from AbbVie and Genentech; Employee of Walter and Eliza Hall Institute of Medical Research which receives milestone payments related to venetoclax. EDAT- 2016/02/03 06:00 MHDA- 2016/02/03 06:01 PMCR- 2016/02/01 CRDT- 2016/02/03 06:00 PHST- 2016/02/03 06:00 [entrez] PHST- 2016/02/03 06:00 [pubmed] PHST- 2016/02/03 06:01 [medline] PHST- 2016/02/01 00:00 [pmc-release] AID - 10.1177_2040620715608091 [pii] AID - 10.1177/2040620715608091 [doi] PST - ppublish SO - Ther Adv Hematol. 2016 Feb;7(1):52-64. doi: 10.1177/2040620715608091.