Leukemia最新文献

{"title":"Star wars against leukemia: attacking the clones","authors":"Monika M. Toma, Tomasz Skorski","doi":"10.1038/s41375-024-02369-6","DOIUrl":"https://doi.org/10.1038/s41375-024-02369-6","url":null,"abstract":"<p>Leukemia, although most likely starts as a monoclonal genetic/epigenetic anomaly, is a polyclonal disease at manifestation. This polyclonal nature results from ongoing evolutionary changes in the genome/epigenome of leukemia cells to promote their survival and proliferation advantages. We discuss here how genetic and/or epigenetic aberrations alter intracellular microenvironment in individual leukemia clones and how extracellular microenvironment selects the best fitted clones. This dynamic polyclonal composition of leukemia makes designing an effective therapy a challenging task especially because individual leukemia clones often display substantial differences in response to treatment. Here, we discuss novel therapeutic approach employing single cell multiomics to identify and eradicate all individual clones in a patient.</p>","PeriodicalId":18109,"journal":{"name":"Leukemia","volume":null,"pages":null},"PeriodicalIF":11.4,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142118056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of somatic gene mutations on the risk of thrombosis in myelofibrosis","authors":"Irene Pastor-Galán, Arturo Pereira, Eduardo Arellano-Rodrigo, Iván Martín, Adrián Mosquera-Orgueira, María-Teresa Gómez-Casares, Alberto Hernández-Sánchez, Francisca Ferrer-Marín, Elvira Mora, Patricia Velez, Rosa Ayala, Anna Angona, Natalia de las Heras, Elena Magro, María-Isabel Mata-Vázquez, María-Laura Fox, Sonia González de Villambrosía, María-José Ramírez, Ana García, Valentín García-Gutiérrez, Amparo Cáceres, María-Antonia Durán, María-Alicia Senín, José-María Raya, José Antonio González, Beatriz Cuevas, Blanca Xicoy, Marta Garrote, Blanca Ferrer, Manuel Pérez-Encinas, Jesús María Hernández-Rivas, Beatriz Bellosillo, Alberto Álvarez-Larrán, Juan Carlos Hernández-Boluda","doi":"10.1038/s41375-024-02389-2","DOIUrl":"https://doi.org/10.1038/s41375-024-02389-2","url":null,"abstract":"<p>Myelofibrosis (MF) is a chronic myeloproliferative neoplasm (MPN) characterized by clonal proliferation of hematopoietic progenitors, bone marrow fibrosis, and extramedullary hematopoiesis. Constitutive activation of JAK-STAT pathway signaling through mutations in the MPN driver genes (i.e., <i>JAK2</i>, <i>CALR</i>, and <i>MPL</i>) plays a fundamental role in its pathogenesis and progression, which can be influenced by mutations in other genes (non-MPN driver genes) [1].</p><p>Thrombotic complications increase morbidity and mortality in MF [2,3,4,5]. Around 20% of patients experience thrombosis before or at diagnosis, with 6–12% developing thrombotic events during follow-up. The main risk factors for thrombosis include older age, a prior history of thrombosis, and a <i>JAK2</i> mutated genotype [2, 3]. While several studies have evaluated non-MPN driver gene mutations as risk factors for thrombosis in essential thrombocythemia (ET) [6, 7] and polycythemia vera (PV) [8, 9], their role in MF is less defined.</p>","PeriodicalId":18109,"journal":{"name":"Leukemia","volume":null,"pages":null},"PeriodicalIF":11.4,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142100840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"IL-10R inhibition reprograms tumor-associated macrophages and reverses drug resistance in multiple myeloma","authors":"Jennifer Sun, Stefan Corradini, Feda Azab, Monica Shokeen, Barbara Muz, Katerina E. Miari, Mina Maksimos, Camila Diedrich, Obed Asare, Kinan Alhallak, Chaelee Park, Berit Lubben, Yixuan Chen, Ola Adebayo, Hannah Bash, Sarah Kelley, Mark Fiala, Diane E. Bender, Haibin Zhou, Shaomeng Wang, Ravi Vij, Mark T. S. Williams, Abdel Kareem Azab","doi":"10.1038/s41375-024-02391-8","DOIUrl":"https://doi.org/10.1038/s41375-024-02391-8","url":null,"abstract":"<p>Multiple myeloma (MM) is the cancer of plasma cells within the bone marrow and remains incurable. Tumor-associated macrophages (TAMs) within the tumor microenvironment often display a pro-tumor phenotype and correlate with tumor proliferation, survival, and therapy resistance. IL-10 is a key immunosuppressive cytokine that leads to recruitment and development of TAMs. In this study, we investigated the role of IL-10 in MM TAM development as well as the therapeutic application of IL-10/IL-10R/STAT3 signaling inhibition. We demonstrated that IL-10 is overexpressed in MM BM and mediates M2-like polarization of TAMs in patient BM, 3D co-cultures in vitro, and mouse models. In turn, TAMs promote MM proliferation and drug resistance, both in vitro and in vivo. Moreover, inhibition of IL-10/IL-10R/STAT3 axis using a blocking IL-10R monoclonal antibody and STAT3 protein degrader/PROTAC prevented M2 polarization of TAMs and the consequent TAM-induced proliferation of MM, and re-sensitized MM to therapy, in vitro and in vivo. Therefore, our findings suggest that inhibition of IL-10/IL-10R/STAT3 axis is a novel therapeutic strategy with monotherapy efficacy and can be further combined with current anti-MM therapy, such as immunomodulatory drugs, to overcome drug resistance. Future investigation is warranted to evaluate the potential of such therapy in MM patients.</p><figure></figure>","PeriodicalId":18109,"journal":{"name":"Leukemia","volume":null,"pages":null},"PeriodicalIF":11.4,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142100841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The clinical impact of acquired von Willebrand syndrome secondary to Waldenström macroglobulinemia: an underrecognized source of major bleeding events","authors":"Karan L. Chohan, Rajiv K. Pruthi, Saurabh Zanwar, Jonas Paludo, Ronald Go, Animesh Pardanani, Aneel Ashrani, Joselle M. Cook, Carrie A. Thompson, Asher Chanan-Khan, Sikander Ailawadhi, Thomas M. Habermann, Thomas E. Witzig, Morie A. Gertz, David Dingli, Fransis K. Buadi, Angela Dispenzieri, Nelson Leung, Shaji K. Kumar, Vincent Rajkumar, William L. Nichols, Robert A. Kyle, Stephen M. Ansell, Prashant Kapoor, Meera Sridharan, Jithma P. Abeykoon","doi":"10.1038/s41375-024-02393-6","DOIUrl":"https://doi.org/10.1038/s41375-024-02393-6","url":null,"abstract":"<p>An under-recognized source of bleeding in Waldenström macroglobulinemia (WM) is the development of an acquired von Willebrand syndrome (AVWS) [1]. In WM, the von Willebrand Factor (vWF) glycoprotein can be degraded due to autoantibody destruction, increased shear stress due to hyperviscosity, or sequestered due to adsorption onto malignant cells, leading to the development of AVWS (AVWS-WM) [1, 2]. However, there is currently a paucity of published literature characterizing the clinical features associated with AVWS-WM and, specifically, the change in bleeding-related symptoms through treatment [3,4,5,6]. In this study, we assessed the prevalence of AVWS-WM in patients with WM treated in a tertiary care center and evaluated the associated clinical manifestations and outcomes of patients with AVWS-WM compared to those with WM and without AVWS.</p><p>This retrospective cohort study evaluated patients with active WM seen at Mayo Clinic and affiliated practices from January 2002 to January 2022. Patients were identified using the Mayo Clinic Data Explorer, and those who underwent vWF testing and had confirmed a diagnoses of WM and AVWS were included [7]. A matched control cohort (patients with WM and without AVWS) with a 5:1 ratio based on age, sex, and diagnosis date was also established. Detailed methodologies are available in the Supplementary Materials.</p>","PeriodicalId":18109,"journal":{"name":"Leukemia","volume":null,"pages":null},"PeriodicalIF":11.4,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142084724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic hallmarks and clinical implications of chromothripsis in childhood T-cell acute lymphoblastic leukemia.","authors":"Agata Pastorczak, Zuzanna Urbanska, Borys Styka, Karolina Miarka-Walczyk, Lukasz Sedek, Kamila Wypyszczak, Anna Wakulinska, Zuzanna Nowicka, Tomasz Szczepański, Marcin Stańczak, Wojciech Fendler, Jerzy Kowalczyk, Wojciech Młynarski, Monika Lejman","doi":"10.1038/s41375-024-02370-z","DOIUrl":"https://doi.org/10.1038/s41375-024-02370-z","url":null,"abstract":"<p><p>Chromothripsis (cth) is a form of genomic instability leading to massive de novo structural chromosome rearrangements in a one-time catastrophic event. It can cause cancer-promoting alterations, such as loss of sequences for tumor-suppressor genes, formation of oncogenic fusions, and oncogene amplifications. We investigated the genetic background and clinical significance of cth in childhood T-cell acute lymphoblastic leukemia (T-ALL) patients. For this purpose, whole-genome copy number alterations were analyzed in 173 children with newly diagnosed T-ALL using high-density microarrays. Cth was identified in 10 T-ALL samples (5.78%). In six of them, cth occurred in a constitutional background of Nijmegen breakage syndrome (n = 5) or Li-Fraumeni syndrome (n = 1). Cth generated alterations, including deletions of CDKN2A/B (n = 4) and EZH2 (n = 4), amplifications of CDK6 (n = 2), and NUP214::ABL1 and TFG::GPR128 fusions. Cth-positive leukemias exhibited deletions involving the tumor-suppressor genes RB1 (n = 3), TP53 (n = 1) and MED12 (n = 2). Cth-positive T-ALL patients had a lower probability of 5-year overall survival (OS) [0.56 vs. 0.81; hazard ratio (HR) = 4.14 (1.42-12.02) p = 0.017] as did 5-year event-free survival [0.45 vs. 0.74; HR = 3.91 (1.52-10.08); p = 0.012]. Chromothripsis is an infrequent genomic phenomenon in pediatric T-ALL but is significantly associated with cancer-predisposing syndromes and may associate with inferior prognosis.</p>","PeriodicalId":18109,"journal":{"name":"Leukemia","volume":null,"pages":null},"PeriodicalIF":12.8,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142080798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Third-generation anti-CD19 CAR T cells for relapsed/refractory chronic lymphocytic leukemia: a phase 1/2 study.","authors":"Patrick Derigs, Maria-Luisa Schubert, Peter Dreger, Anita Schmitt, Schayan Yousefian, Simon Haas, Caroline Röthemeier, Brigitte Neuber, Angela Hückelhoven-Krauss, Monika Brüggemann, Helga Bernhard, Guido Kobbe, Albrecht Lindemann, Mathias Rummel, Birgit Michels, Felix Korell, Anthony D Ho, Carsten Müller-Tidow, Michael Schmitt","doi":"10.1038/s41375-024-02392-7","DOIUrl":"https://doi.org/10.1038/s41375-024-02392-7","url":null,"abstract":"<p><p>Third-generation chimeric antigen receptor T cells (CARTs) for relapsed or refractory (r/r) chronic lymphocytic leukemia (CLL) may improve efficacy compared to second-generation CARTs due to their enhanced CAR design. We performed the first phase 1/2 investigator-initiated trial evaluating escalating doses of third-generation CARTs (HD-CAR-1) targeting CD19 in patients with r/r CLL and B-cell lymphoma. CLL eligibility criteria were failure to two therapy lines including at least one pathway inhibitor and/or allogeneic hematopoietic cell transplantation. Nine heavily pretreated patients received HD-CAR-1 at dose levels ranging from 1 × 10⁶ to 200 × 10⁶ CART/m². In-house HD-CAR-1 manufacturing was successful for all patients. While neurotoxicity was absent, one case of grade 3 cytokine release syndrome was observed. By day 90, six patients (67%) attained a CR, five of these (83%) with undetectable MRD. With a median follow-up of 27 months, 2-year PFS and OS were 30% and 69%, respectively. HD-CAR-1 products of responders contained significantly more CD4 + T cells compared to non-responders. In non-responders, a strong enrichment of effector memory-like CD8 + T cells with high expression of CD39 and/or CD197 was observed. HD-CAR-1 demonstrated encouraging efficacy and exceptionally low treatment-specific toxicity, presenting new treatment options for patients with r/r CLL. Trial registration: #NCT03676504.</p>","PeriodicalId":18109,"journal":{"name":"Leukemia","volume":null,"pages":null},"PeriodicalIF":12.8,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142080799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stearoyl-CoA desaturase inhibition is toxic to acute myeloid leukemia displaying high levels of the de novo fatty acid biosynthesis and desaturation.","authors":"Vilma Dembitz, Hannah Lawson, Richard Burt, Sirisha Natani, Céline Philippe, Sophie C James, Samantha Atkinson, Jozef Durko, Lydia M Wang, Joana Campos, Aoife M S Magee, Keith Woodley, Michael J Austin, Ana Rio-Machin, Pedro Casado, Findlay Bewicke-Copley, Giovanny Rodriguez Blanco, Diego Pereira-Martins, Lieve Oudejans, Emeline Boet, Alex von Kriegsheim, Juerg Schwaller, Andrew J Finch, Bela Patel, Jean-Emmanuel Sarry, Jerome Tamburini, Jan Jacob Schuringa, Lori Hazlehurst, John A Copland Iii, Mariia Yuneva, Barrie Peck, Pedro Cutillas, Jude Fitzgibbon, Kevin Rouault-Pierre, Kamil Kranc, Paolo Gallipoli","doi":"10.1038/s41375-024-02390-9","DOIUrl":"https://doi.org/10.1038/s41375-024-02390-9","url":null,"abstract":"<p><p>Identification of specific and therapeutically actionable vulnerabilities, ideally present across multiple mutational backgrounds, is needed to improve acute myeloid leukemia (AML) patients' outcomes. We identify stearoyl-CoA desaturase (SCD), the key enzyme in fatty acid (FA) desaturation, as prognostic of patients' outcomes and, using the clinical-grade inhibitor SSI-4, show that SCD inhibition (SCDi) is a therapeutic vulnerability across multiple AML models in vitro and in vivo. Multiomic analysis demonstrates that SCDi causes lipotoxicity, which induces AML cell death via pleiotropic effects. Sensitivity to SCDi correlates with AML dependency on FA desaturation regardless of mutational profile and is modulated by FA biosynthesis activity. Finally, we show that lipotoxicity increases chemotherapy-induced DNA damage and standard chemotherapy further sensitizes AML cells to SCDi. Our work supports developing FA desaturase inhibitors in AML while stressing the importance of identifying predictive biomarkers of response and biologically validated combination therapies to realize their full therapeutic potential.</p>","PeriodicalId":18109,"journal":{"name":"Leukemia","volume":null,"pages":null},"PeriodicalIF":12.8,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142073233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A multidimensional analysis reveals distinct immune phenotypes and the composition of immune aggregates in pediatric acute myeloid leukemia.","authors":"Joost B Koedijk, Inge van der Werf, Livius Penter, Marijn A Vermeulen, Farnaz Barneh, Alicia Perzolli, Joyce I Meesters-Ensing, Dennis S Metselaar, Thanasis Margaritis, Marta Fiocco, Hester A de Groot-Kruseman, Rubina Moeniralam, Kristina Bang Christensen, Billie Porter, Kathleen Pfaff, Jacqueline S Garcia, Scott J Rodig, Catherine J Wu, Henrik Hasle, Stefan Nierkens, Mirjam E Belderbos, C Michel Zwaan, Olaf Heidenreich","doi":"10.1038/s41375-024-02381-w","DOIUrl":"10.1038/s41375-024-02381-w","url":null,"abstract":"<p><p>Because of the low mutational burden and consequently, fewer potential neoantigens, children with acute myeloid leukemia (AML) are thought to have a T cell-depleted or 'cold' tumor microenvironment and may have a low likelihood of response to T cell-directed immunotherapies. Understanding the composition, phenotype, and spatial organization of T cells and other microenvironmental populations in the pediatric AML bone marrow (BM) is essential for informing future immunotherapeutic trials about targetable immune-evasion mechanisms specific to pediatric AML. Here, we conducted a multidimensional analysis of the tumor immune microenvironment in pediatric AML and non-leukemic controls. We demonstrated that nearly one-third of pediatric AML cases has an immune-infiltrated BM, which is characterized by a decreased ratio of M2- to M1-like macrophages. Furthermore, we detected the presence of large T cell networks, both with and without colocalizing B cells, in the BM and dissected the cellular composition of T- and B cell-rich aggregates using spatial transcriptomics. These analyses revealed that these aggregates are hotspots of CD8⁺ T cells, memory B cells, plasma cells and/or plasmablasts, and M1-like macrophages. Collectively, our study provides a multidimensional characterization of the BM immune microenvironment in pediatric AML and indicates starting points for further investigations into immunomodulatory mechanisms in this devastating disease.</p>","PeriodicalId":18109,"journal":{"name":"Leukemia","volume":null,"pages":null},"PeriodicalIF":12.8,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142073221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Menin inhibitors in pediatric acute leukemia: a comprehensive review and recommendations to accelerate progress in collaboration with adult leukemia and the international community","authors":"Branko Cuglievan,&nbsp;Hagop Kantarjian,&nbsp;Jeffrey E. Rubnitz,&nbsp;Todd M. Cooper,&nbsp;C. Michel Zwaan,&nbsp;Jessica A. Pollard,&nbsp;Courtney D. DiNardo,&nbsp;Tapan M. Kadia,&nbsp;Erin Guest,&nbsp;Nicholas J. Short,&nbsp;David McCall,&nbsp;Naval Daver,&nbsp;Cesar Nunez,&nbsp;Fadi G. Haddad,&nbsp;Miriam Garcia,&nbsp;Kapil N. Bhalla,&nbsp;Abhishek Maiti,&nbsp;Samanta Catueno,&nbsp;Warren Fiskus,&nbsp;Bing Z. Carter,&nbsp;Amber Gibson,&nbsp;Michael Roth,&nbsp;Sajad Khazal,&nbsp;Priti Tewari,&nbsp;Hussein A. Abbas,&nbsp;Wallace Bourgeois,&nbsp;Michael Andreeff,&nbsp;Neerav N. Shukla,&nbsp;Danh D. Truong,&nbsp;Jeremy Connors,&nbsp;Joseph A. Ludwig,&nbsp;Janine Stutterheim,&nbsp;Elisabeth Salzer,&nbsp;Kristian L. Juul-Dam,&nbsp;Koji Sasaki,&nbsp;Kris M. Mahadeo,&nbsp;Sarah K. Tasian,&nbsp;Gautam Borthakur,&nbsp;Samantha Dickson,&nbsp;Nitin Jain,&nbsp;Elias Jabbour,&nbsp;Soheil Meshinchi,&nbsp;Guillermo Garcia-Manero,&nbsp;Farhad Ravandi,&nbsp;Eytan M. Stein,&nbsp;E. Anders Kolb,&nbsp;Ghayas C. Issa","doi":"10.1038/s41375-024-02368-7","DOIUrl":"10.1038/s41375-024-02368-7","url":null,"abstract":"Aberrant expression of HOX and MEIS1 family genes, as seen in KMT2A-rearranged, NUP98-rearranged, or NPM1-mutated leukemias leads to arrested differentiation and leukemia development. HOX family genes are essential gatekeepers of physiologic hematopoiesis, and their expression is regulated by the interaction between KMT2A and menin. Menin inhibitors block this interaction, downregulate the abnormal expression of MEIS1 and other transcription factors and thereby release the differentiation block. Menin inhibitors show significant clinical efficacy against KMT2A-rearranged and NPM1-mutated acute leukemias, with promising potential to address unmet needs in various pediatric leukemia subtypes. In this collaborative initiative, pediatric and adult hematologists/oncologists, and stem cell transplant physicians have united their expertise to explore the potential of menin inhibitors in pediatric leukemia treatment internationally. Our efforts aim to provide a comprehensive clinical overview of menin inhibitors, integrating preclinical evidence and insights from ongoing global clinical trials. Additionally, we propose future international, inclusive, and efficient clinical trial designs, integrating pediatric populations in adult trials, to ensure broad access to this promising therapy for all children and adolescents with menin-dependent leukemias.","PeriodicalId":18109,"journal":{"name":"Leukemia","volume":null,"pages":null},"PeriodicalIF":12.8,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41375-024-02368-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142042693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"STING is crucial for the survival of RUNX1::RUNX1T1 leukemia cells","authors":"Yue Sun,&nbsp;Yushuang Wu,&nbsp;Guozheng Pang,&nbsp;Jingru Huang,&nbsp;Mengyao Sheng,&nbsp;Jiaying Xie,&nbsp;Pingyue Chen,&nbsp;Yin Wang,&nbsp;Dongrui Yin,&nbsp;Guangjie Zhao,&nbsp;Stefan K. Bohlander,&nbsp;Jian Huang,&nbsp;Guo-Liang Xu,&nbsp;Hai Gao,&nbsp;Dan Zhou,&nbsp;Yuheng Shi","doi":"10.1038/s41375-024-02383-8","DOIUrl":"10.1038/s41375-024-02383-8","url":null,"abstract":"Even though acute myeloid leukemia (AML) patients with a RUNX1::RUNX1T1 (AE) fusion have a relatively favorable prognosis, approximately 50% relapse within 2.5 years and develop resistance to subsequent chemotherapy [1]. It is therefore imperative to identify novel therapeutic targets for AE leukemia to improve outcomes. In this study, we unveil that targeting STING effectively suppresses the growth of AE leukemia cells. Both genetic and pharmacological inhibition of STING lead to the diminish of AE leukemia cells. Importantly, in a mouse primary AE leukemia model, STING deletion significantly attenuates leukemogenesis and prolongs the animals’ lifespan. Blocking the downstream inflammatory pathway of STING yields similar effects to STING inhibition in AE leukemia cells, highlighting the pivotal role of STING-dependent inflammatory responses in sustaining the survival of AE leukemia cells. Moreover, through a genome-wide CRISPR screen, we identified fatty acid desaturase 2 (FADS2) as a non-canonical factor downstream of STING inhibition that mediates cell death. Inhibition of STING releases FADS2 activity, consequently inducing the synthesis of polyunsaturated fatty acids (PUFAs) and triggering lipid peroxidation-associated cell death [2]. Taken together, these findings reveal a critical function of STING in the survival of AE-positive AML cells and suggest STING to be a potential therapeutic target for clinical intervention in these patients.","PeriodicalId":18109,"journal":{"name":"Leukemia","volume":null,"pages":null},"PeriodicalIF":12.8,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41375-024-02383-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142042696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}