1
|
Saygin C, Zhang P, Stauber J, Aldoss I, Sperling AS, Weeks LD, Luskin MR, Knepper TC, Wanjari P, Wang P, Lager AM, Fitzpatrick C, Segal JP, Gharghabi M, Gurbuxani S, Venkataraman G, Cheng JX, Eisfelder BJ, Bohorquez O, Patel AA, Umesh Nagalakshmi S, Jayaram S, Odenike OM, Larson RA, Godley LA, Arber DA, Gibson CJ, Munshi NC, Marcucci G, Ebert BL, Greally JM, Steidl U, Lapalombella R, Shah BD, Stock W. Acute Lymphoblastic Leukemia with Myeloid Mutations Is a High-Risk Disease Associated with Clonal Hematopoiesis. Blood Cancer Discov 2024; 5:164-179. [PMID: 38150184 PMCID: PMC11061587 DOI: 10.1158/2643-3230.bcd-23-0106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 10/05/2023] [Accepted: 12/19/2023] [Indexed: 12/28/2023] Open
Abstract
Myeloid neoplasms arise from preexisting clonal hematopoiesis (CH); however, the role of CH in the pathogenesis of acute lymphoblastic leukemia (ALL) is unknown. We found that 18% of adult ALL cases harbored TP53, and 16% had myeloid CH-associated gene mutations. ALL with myeloid mutations (MyM) had distinct genetic and clinical characteristics, associated with inferior survival. By using single-cell proteogenomic analysis, we demonstrated that myeloid mutations were present years before the diagnosis of ALL, and a subset of these clones expanded over time to manifest as dominant clones in ALL. Single-cell RNA sequencing revealed upregulation of genes associated with cell survival and resistance to apoptosis in B-ALL with MyM, which responds better to newer immunotherapeutic approaches. These findings define ALL with MyM as a high-risk disease that can arise from antecedent CH and offer new mechanistic insights to develop better therapeutic and preventative strategies. SIGNIFICANCE CH is a precursor lesion for lymphoblastic leukemogenesis. ALL with MyM has distinct genetic and clinical characteristics, associated with adverse survival outcomes after chemotherapy. CH can precede ALL years before diagnosis, and ALL with MyM is enriched with activated T cells that respond to immunotherapies such as blinatumomab. See related commentary by Iacobucci, p. 142.
Collapse
Affiliation(s)
- Caner Saygin
- Section of Hematology/Oncology, University of Chicago, Chicago, Illinois
| | - Pu Zhang
- Division of Hematology, The Ohio State University, Columbus, Ohio
| | - Jacob Stauber
- Albert Einstein College of Medicine–Montefiore Health System, New York, New York
| | - Ibrahim Aldoss
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, California
| | - Adam S. Sperling
- Dana-Farber Cancer Institute, Boston, Massachusetts
- Division of Hematology, Brigham and Women's Hospital, Boston, Massachusetts
| | | | | | | | - Pankhuri Wanjari
- Department of Pathology, University of Chicago, Chicago, Illinois
| | - Peng Wang
- Department of Pathology, University of Chicago, Chicago, Illinois
| | - Angela M. Lager
- Department of Pathology, University of Chicago, Chicago, Illinois
| | | | - Jeremy P. Segal
- Department of Pathology, University of Chicago, Chicago, Illinois
| | - Mehdi Gharghabi
- Division of Hematology, The Ohio State University, Columbus, Ohio
| | | | | | - Jason X. Cheng
- Department of Pathology, University of Chicago, Chicago, Illinois
| | - Bart J. Eisfelder
- Section of Hematology/Oncology, University of Chicago, Chicago, Illinois
| | - Oliver Bohorquez
- Albert Einstein College of Medicine–Montefiore Health System, New York, New York
| | - Anand A. Patel
- Section of Hematology/Oncology, University of Chicago, Chicago, Illinois
| | | | | | | | - Richard A. Larson
- Section of Hematology/Oncology, University of Chicago, Chicago, Illinois
| | - Lucy A. Godley
- Section of Hematology/Oncology, University of Chicago, Chicago, Illinois
| | - Daniel A. Arber
- Department of Pathology, University of Chicago, Chicago, Illinois
| | | | | | - Guido Marcucci
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, California
| | | | - John M. Greally
- Albert Einstein College of Medicine–Montefiore Health System, New York, New York
| | - Ulrich Steidl
- Albert Einstein College of Medicine–Montefiore Health System, New York, New York
| | | | | | - Wendy Stock
- Section of Hematology/Oncology, University of Chicago, Chicago, Illinois
| |
Collapse
|
2
|
|
3
|
Madero-Marroquin R, DuVall AS, Saygin C, Wang P, Gurbuxani S, Larson RA, Stock W, Patel AA. Durable responses in acute lymphoblastic leukaemia with the use of FLT3 and IDH inhibitors. Br J Haematol 2024; 204:1238-1242. [PMID: 38073116 DOI: 10.1111/bjh.19250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/02/2023] [Accepted: 11/27/2023] [Indexed: 04/11/2024]
Abstract
Data regarding the use of FMS-like tyrosine kinase 3 (FLT3) and isocitrate dehydrogenase 1/2 (IDH1/2) inhibitors in acute lymphoblastic leukaemia (ALL) are lacking. We identified 14 patients with FLT3- or IDH1/2-mutated ALL. Three early T-cell precursor-ALL patients received FLT3 or IDH2 inhibitors. Patient 1 maintains a complete remission (CR) with enasidenib after intolerance to chemotherapy. Patient 2 maintained a CR for 27 months after treatment with enasidenib for relapsed disease. Patient 3 was treated with venetoclax and gilteritinib at the time of relapse and maintained a CR with gilteritinib for 8 months. These cases suggest that FLT3 and IDH inhibitors could represent a viable therapeutic option for ALL patients with these mutations.
Collapse
Affiliation(s)
- Rafael Madero-Marroquin
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Adam S DuVall
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Caner Saygin
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Peng Wang
- Department of Pathology, University of Chicago, Chicago, Illinois, USA
| | - Sandeep Gurbuxani
- Department of Pathology, University of Chicago, Chicago, Illinois, USA
| | - Richard A Larson
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Wendy Stock
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Anand Ashwin Patel
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| |
Collapse
|
4
|
Hall T, Gurbuxani S, Crispino JD. Malignant progression of pre-leukemic disorders. Blood 2024:blood.2023020817. [PMID: 38498034 DOI: 10.1182/blood.2023020817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 02/23/2024] [Accepted: 02/29/2024] [Indexed: 03/19/2024] Open
Abstract
The spectrum of myeloid disorders ranges from aplastic bone marrow failure characterized by an empty bone marrow completely lacking in hematopoiesis to acute myeloid leukemia where the marrow space is replaced by undifferentiated leukemic blasts. Recent advances in the capacity to sequence bulk tumor population as well as at a single cell level has provided significant insight into the stepwise process of transformation to acute myeloid leukemia. Using models of progression in the context of germline predisposition (trisomy 21, GATA2 deficiency, SAMD9/9L syndrome), premalignant states (clonal hematopoiesis and clonal cytopenia of unknown significance) and myelodysplastic syndrome, we review the mechanisms of progression focusing on the hierarchy of clonal mutation and potential roles of transcription factor alterations, splicing factor mutations and the bone marrow environment in progression to acute myeloid leukemia. Despite major advances in our understanding, preventing progression of these disorders or treating them at the acute leukemia phase remains a major area of unmet medical need.
Collapse
Affiliation(s)
- Trent Hall
- St Jude Children's Research Hospital, Memphis, Tennessee, United States
| | | | - John D Crispino
- St Jude Children's Research Hospital, Memphis, Tennessee, United States
| |
Collapse
|
5
|
Jalnapurkar SS, Pawar A, George SS, Antony C, Grana J, Gurbuxani S, Paralkar VR. PHF6 suppresses self-renewal of leukemic stem cells in AML. bioRxiv 2024:2024.01.06.573649. [PMID: 38260439 PMCID: PMC10802281 DOI: 10.1101/2024.01.06.573649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Acute myeloid leukemia is characterized by uncontrolled proliferation of self-renewing myeloid progenitors. PHF6 is a chromatin-binding protein mutated in myeloid leukemias, and its loss increases mouse HSC self-renewal without malignant transformation. We report here that Phf6 knockout increases the aggressiveness of Hoxa9-driven AML over serial transplantation, and increases the frequency of leukemia initiating cells. We define the in vivo hierarchy of Hoxa9-driven AML and identify a population that we term the 'LIC-e' (leukemia initiating cells enriched) population. We find that Phf6 loss has context-specific transcriptional effects, skewing the LIC-e transcriptome to a more stem-like state. We demonstrate that LIC-e accumulation in Phf6 knockout AML occurs not due to effects on cell cycle or apoptosis, but due to an increase in the fraction of its progeny that retain LIC-e identity. Overall, our work indicates that Phf6 loss increases AML self-renewal through context-specific effects on leukemia stem cells.
Collapse
Affiliation(s)
- Sapana S Jalnapurkar
- Division of Hematology and Oncology, Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Aishwarya Pawar
- Division of Hematology and Oncology, Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA
- Biomedical Graduate Studies, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Subin S George
- Institute for Biomedical Informatics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Charles Antony
- Division of Hematology and Oncology, Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Jason Grana
- Division of Hematology and Oncology, Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Sandeep Gurbuxani
- Department of Pathology, University of Chicago, Chicago, IL 60637, USA
| | - Vikram R Paralkar
- Division of Hematology and Oncology, Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA
- Department of Cell and Developmental Biology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA
- Abramson Family Cancer Research Institute, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA
| |
Collapse
|
6
|
Johnston H, Youshanlouei HR, Osei C, Patel AA, DuVall A, Wang P, Wanjari P, Segal J, Venkataraman G, Cheng JX, Gurbuxani S, Lager A, Fitzpatrick C, Thirman M, Nawas M, Liu H, Drazer M, Odenike O, Larson R, Stock W, Saygin C. Socioeconomic determinants of the biology and outcomes of acute lymphoblastic leukemia in adults. Blood Adv 2024; 8:164-171. [PMID: 38039510 PMCID: PMC10787242 DOI: 10.1182/bloodadvances.2023011862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/07/2023] [Accepted: 11/08/2023] [Indexed: 12/03/2023] Open
Abstract
ABSTRACT Various socioeconomic and biologic factors affect cancer health disparities and differences in health outcomes. To better characterize the socioeconomic vs biologic determinants of acute lymphoblastic leukemia (ALL) outcomes, we conducted a single-institution, retrospective analysis of adult patients with ALL treated at the University of Chicago (UChicago) from 2010 to 2022 and compared our outcomes with the US national data (the Surveillance, Epidemiology, and End Results [SEER] database). Among 221 adult patients with ALL treated at UChicago, BCR::ABL1 was more frequent in patients with higher body mass index (BMI; odds ratio [OR], 7.64; 95% confidence interval [CI], 1.17-49.9) and non-Hispanic Black (NHB) ancestry (59% vs 24% in non-Hispanic White (NHW) and 20% in Hispanic patients; P = .001). In a multivariable analysis, age (hazard ratio [HR], 6.93; 95% CI, 2.27-21.1) and higher BMI at diagnosis (HR, 10.3; 95% CI, 2.56-41.5) were independent predictors of poor overall survival (OS). In contrast, race or income were not predictors of OS in the UChicago cohort. Analysis of the national SEER database (2010-2020) demonstrated worse survival outcomes in Hispanic and NHB patients than in NHW patients among adolescent and young adults (AYAs) but not in older adults (aged >40 years). Both AYA and older adult patients with higher median household income had better OS than those with lower income. Therefore, multidisciplinary medical care coupled with essential supportive care services offered at centers experienced in ALL care may alleviate the socioeconomic disparities in ALL outcomes in the United States.
Collapse
Affiliation(s)
| | | | - Clinton Osei
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Anand A. Patel
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Adam DuVall
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Peng Wang
- Department of Pathology, University of Chicago, Chicago, IL
| | | | - Jeremy Segal
- Department of Pathology, University of Chicago, Chicago, IL
| | | | - Jason X. Cheng
- Department of Pathology, University of Chicago, Chicago, IL
| | | | - Angela Lager
- Department of Pathology, University of Chicago, Chicago, IL
| | | | - Michael Thirman
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Mariam Nawas
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Hongtao Liu
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Michael Drazer
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Olatoyosi Odenike
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Richard Larson
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Wendy Stock
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Caner Saygin
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| |
Collapse
|
7
|
Spring J, Gurbuxani S, Golovkina T. Microbiota may affect the tumor type but not overall tumor development in two models of heritable cancer. bioRxiv 2023:2023.10.11.561890. [PMID: 37873087 PMCID: PMC10592741 DOI: 10.1101/2023.10.11.561890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Microbial impact on tumorigenesis of heritable cancers proximal to the gut is well documented. Whether the microbiota influences cancers arising from inborn mutations at sites distal to the gut is undetermined. Using two models of heritable cancer, we found the microbiota to be inconsequential for tumor development. However, the type of tumor that develops may be influenced by the microbiota. This work furthers our understanding of the microbial impact on tumor development.
Collapse
|
8
|
Roloff GW, Wen F, Ramsland A, Artz AS, Kosuri S, Stock W, Odenike O, Larson RA, Liu H, Godley LA, Thirman MJ, Patel AA, Daugherty CK, DuVall AS, Nawas MT, Dworkin E, Wool GD, Gurbuxani S, Fitzpatrick C, Segal JP, Wang P, Drazer MW. Clinical and molecular response of acute myeloid leukemia harboring non-canonical FLT3 N676K driver mutations to contemporary FLT3 inhibitors. Haematologica 2023; 108:2234-2239. [PMID: 36655425 PMCID: PMC10388285 DOI: 10.3324/haematol.2022.282148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 01/09/2023] [Indexed: 01/20/2023] Open
Affiliation(s)
| | - Frank Wen
- Section of Hematology/Oncology, The University of Chicago
| | | | - Andrew S Artz
- Division of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte CA
| | | | - Wendy Stock
- Section of Hematology/Oncology, The University of Chicago
| | | | | | - Hongtao Liu
- Section of Hematology/Oncology, The University of Chicago
| | - Lucy A Godley
- Section of Hematology/Oncology, The University of Chicago
| | | | - Anand A Patel
- Section of Hematology/Oncology, The University of Chicago
| | | | - Adam S DuVall
- Section of Hematology/Oncology, The University of Chicago
| | - Mariam T Nawas
- Section of Hematology/Oncology, The University of Chicago
| | - Emily Dworkin
- Section of Hematology/Oncology, The University of Chicago
| | | | | | | | | | - Peng Wang
- Department of Pathology, The University of Chicago
| | | |
Collapse
|
9
|
Ling T, Zhang K, Yang J, Gurbuxani S, Crispino JD. Gata1s mutant mice display persistent defects in the erythroid lineage. Blood Adv 2023; 7:3253-3264. [PMID: 36350717 PMCID: PMC10336263 DOI: 10.1182/bloodadvances.2022008124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 09/23/2022] [Accepted: 10/17/2022] [Indexed: 11/11/2022] Open
Abstract
GATA1 mutations that result in loss of the N-terminal 83 amino acids are a feature of myeloid leukemia in children with Down syndrome, rare familial cases of dyserythropoietic anemia, and a subset of cases of Diamond-Blackfan anemia. The Gata1s mouse model, which expresses only the short GATA1 isoform that begins at methionine 84, has been shown to have a defect in hematopoiesis, especially impaired erythropoiesis with expanded megakaryopoiesis, during gestation. However, these mice reportedly did not show any postnatal phenotype. Here, we demonstrate that Gata1s mutant mice display macrocytic anemia and features of aberrant megakaryopoiesis throughout life, culminating in profound splenomegaly and bone marrow fibrosis. These data support the use of this animal model for studies of GATA1 deficiencies.
Collapse
Affiliation(s)
- Te Ling
- Department of Hematology, St. Jude Children’s Research Hospital, Memphis, TN
| | - Kevin Zhang
- Department of Hematology, St. Jude Children’s Research Hospital, Memphis, TN
| | - Jiayue Yang
- Department of Microbiology, School of Molecular and Cellular Biology, University of Illinois Urbana-Champaign, Champaign, IL
| | | | - John D. Crispino
- Department of Hematology, St. Jude Children’s Research Hospital, Memphis, TN
| |
Collapse
|
10
|
Gurbuxani S, Hochman MJ, DeZern AE, Shimamura A. The Times, They Are A-Changing: The Impact of Next-Generation Sequencing on Diagnosis, Classification, and Prognostication of Myeloid Malignancies With Focus on Myelodysplastic Syndrome, AML, and Germline Predisposition. Am Soc Clin Oncol Educ Book 2023; 43:e390026. [PMID: 37307513 DOI: 10.1200/edbk_390026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Myeloid malignancies are a manifestation of clonal expansion of hematopoietic cells driven by somatic genetic alterations that may arise in a potential background of deleterious germline variants. As next-generation sequencing technology has become more accessible, real-world experience has allowed integration of molecular genomic data with morphology, immunophenotype, and conventional cytogenetics to refine our understanding of myeloid malignancies. This has prompted revisions in the classification and the prognostication schema of myeloid malignancies and germline predisposition to hematologic malignancies. This review provides an overview of significant changes in the recently published classifications of AML and myelodysplastic syndrome, emerging prognostic scoring, and the role of germline deleterious variants in predisposing to MDS and AML.
Collapse
Affiliation(s)
| | - Michael J Hochman
- Johns Hopkins University School of Medicine, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
| | - Amy E DeZern
- Johns Hopkins University School of Medicine, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
| | - Akiko Shimamura
- Dana Farber/Boston Children's Cancer and Blood Disorders Center, Harvard Medical School, Boston, MA
| |
Collapse
|
11
|
An N, Khan S, Imgruet MK, Jueng L, Gurbuxani S, McNerney ME. Oncogenic RAS promotes leukemic transformation of CUX1-deficient cells. Oncogene 2023; 42:881-893. [PMID: 36725889 PMCID: PMC10068965 DOI: 10.1038/s41388-023-02612-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 02/03/2023]
Abstract
-7/del(7q) is prevalent across subtypes of myeloid neoplasms. CUX1, located on 7q22, encodes a homeodomain-containing transcription factor, and, like -7/del(7q), CUX1 inactivating mutations independently carry a poor prognosis. As with loss of 7q, CUX1 mutations often occur early in disease pathogenesis. We reported that CUX1 deficiency causes myelodysplastic syndrome in mice but was insufficient to drive acute myeloid leukemia (AML). Given the known association between -7/del(7q) and RAS pathway mutations, we mined cancer genome databases and explicitly linked CUX1 mutations with oncogenic RAS mutations. To determine if activated RAS and CUX1 deficiency promote leukemogenesis, we generated mice bearing NrasG12D and CUX1-knockdown which developed AML, not seen in mice with either mutation alone. Oncogenic RAS imparts increased self-renewal on CUX1-deficient hematopoietic stem/progenitor cells (HSPCs). Reciprocally, CUX1 knockdown amplifies RAS signaling through reduction of negative regulators of RAS/PI3K signaling. Double mutant HSPCs were responsive to PIK3 or MEK inhibition. Similarly, low expression of CUX1 in primary AML samples correlates with sensitivity to the same inhibitors, suggesting a potential therapy for malignancies with CUX1 inactivation. This work demonstrates an unexpected convergence of an oncogene and tumor suppressor gene on the same pathway.
Collapse
Affiliation(s)
- Ningfei An
- Department of Pathology, The University of Chicago, Chicago, IL, USA
- Department of Pediatrics, Hematology/Oncology, The University of Chicago, Chicago, IL, USA
| | - Saira Khan
- Department of Pathology, The University of Chicago, Chicago, IL, USA
- Department of Pediatrics, Hematology/Oncology, The University of Chicago, Chicago, IL, USA
| | - Molly K Imgruet
- Department of Pathology, The University of Chicago, Chicago, IL, USA
- The University of Chicago Medicine Comprehensive Cancer Center, The University of Chicago, Chicago, IL, USA
| | - Lia Jueng
- Department of Pathology, The University of Chicago, Chicago, IL, USA
- Department of Pediatrics, Hematology/Oncology, The University of Chicago, Chicago, IL, USA
| | - Sandeep Gurbuxani
- Department of Pathology, The University of Chicago, Chicago, IL, USA
| | - Megan E McNerney
- Department of Pathology, The University of Chicago, Chicago, IL, USA.
- Department of Pediatrics, Hematology/Oncology, The University of Chicago, Chicago, IL, USA.
- The University of Chicago Medicine Comprehensive Cancer Center, The University of Chicago, Chicago, IL, USA.
| |
Collapse
|
12
|
Hunter RW, Gurbuxani S. EBV-positive inflammatory FDC/FRC tumor: no longer pseudo or sarcoma! Blood 2023; 141:961. [PMID: 36821180 DOI: 10.1182/blood.2022018463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
|
13
|
MacDonald ME, Weathered RK, Stewart EC, Magold AI, Mukherjee A, Gurbuxani S, Smith H, McMullen P, Mueller J, Husain AN, Salles CM, Briquez PS, Rouhani SJ, Yu J, Trujillo J, Pyzer AR, Gajewski TF, Sperling AI, Kilarski WW, Swartz MA. Lymphatic coagulation and neutrophil extracellular traps in lung-draining lymph nodes of COVID-19 decedents. Blood Adv 2022; 6:6249-6262. [PMID: 35977099 PMCID: PMC9394105 DOI: 10.1182/bloodadvances.2022007798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 07/12/2022] [Accepted: 08/01/2022] [Indexed: 01/05/2023] Open
Abstract
Clinical manifestations of severe COVID-19 include coagulopathies that are exacerbated by the formation of neutrophil extracellular traps (NETs). Here, we report that pulmonary lymphatic vessels, which traffic neutrophils and other immune cells to the lung-draining lymph node (LDLN), can also be blocked by fibrin clots in severe COVID-19. Immunostained tissue sections from COVID-19 decedents revealed widespread lymphatic clotting not only in the lung but also in the LDLN, where the extent of clotting correlated with the presence of abnormal, regressed, or missing germinal centers (GCs). It strongly correlated with the presence of intralymphatic NETs. In mice, tumor necrosis factor α induced intralymphatic fibrin clots; this could be inhibited by DNase I, which degrades NETs. In vitro, TNF-α induced lymphatic endothelial cell upregulation of ICAM-1 and CXCL8, among other neutrophil-recruiting factors, as well as thrombomodulin downregulation; in decedents, lymphatic clotting in LDLNs. In a separate cohort of hospitalized patients, serum levels of Myeloperoxidase-DNA (MPO-DNA, a NET marker) inversely correlated with antiviral antibody titers, but D-dimer levels, indicative of blood thrombosis, did not correlate with either. Patients with high MPO-DNA but low D-dimer levels generated poor antiviral antibody titers. This study introduces lymphatic coagulation in lungs and LDLNs as a clinical manifestation of severe COVID-19 and suggests the involvement of NETosis of lymphatic-trafficking neutrophils. It further suggests that lymphatic clotting may correlate with impaired formation or maintenance of GCs necessary for robust antiviral antibody responses, although further studies are needed to determine whether and how lymphatic coagulation affects adaptive immune responses.
Collapse
Affiliation(s)
- Margo E. MacDonald
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL
- Biophysical Sciences Program, University of Chicago, Chicago, IL
| | - Rachel K. Weathered
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL
| | - Emma C. Stewart
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL
- Committee on Immunology, University of Chicago, Chicago, IL
| | - Alexandra I. Magold
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL
| | - Anish Mukherjee
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL
| | | | - Heather Smith
- Department of Pathology, University of Chicago, Chicago, IL
| | | | | | | | - Calixto M. Salles
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL
| | | | | | - Jovian Yu
- Department of Medicine, University of Chicago, Chicago, IL
| | | | | | - Thomas F. Gajewski
- Committee on Immunology, University of Chicago, Chicago, IL
- Department of Medicine, University of Chicago, Chicago, IL
- Ben May Department of Cancer Research, University of Chicago, Chicago, IL
| | - Anne I. Sperling
- Committee on Immunology, University of Chicago, Chicago, IL
- Ben May Department of Cancer Research, University of Chicago, Chicago, IL
| | - Witold W. Kilarski
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL
| | - Melody A. Swartz
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL
- Committee on Immunology, University of Chicago, Chicago, IL
- Ben May Department of Cancer Research, University of Chicago, Chicago, IL
| |
Collapse
|
14
|
Evans MG, Saliba J, Akkari Y, Bhojwani D, Blombury P, Danos A, Eckert PG, Ewalt MD, Gurbuxani S, Harrison CJ, Iacobucci I, Izraeli S, Jain N, Kanagal-Shamanna R, Kesserwan C, Kovach AE, Lee K, Helber H, Nardi V, Reshmi S, Robert K, Rouette A, Shukla N, Stock W, Terraf P, Xu X, Zhang L, Zhao X, Zhong Y, Raca G, Griffith OL, Griffith M, Krysiak K, Mullighan C. 72. Variant curation of BCR::ABL1-like B-lymphoblastic leukemia/lymphoma through expert panel consensus. Cancer Genet 2022. [DOI: 10.1016/j.cancergen.2022.10.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
15
|
Alban J, DuVall A, Gurbuxani S, Stock W, Patel AA. Outcomes After Retreatment With Inotuzumab Ozogamicin for Relapsed/Refractory Philadelphia Chromosome-Negative B-Cell Acute Lymphoblastic Leukemia. JCO Precis Oncol 2022; 6:e2200353. [PMID: 36240471 PMCID: PMC9616637 DOI: 10.1200/po.22.00353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/25/2022] [Accepted: 08/30/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
- Juan Alban
- Department of Medicine, University of Chicago, Chicago, IL
| | - Adam DuVall
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Sandeep Gurbuxani
- Section of Hematopathology, Department of Pathology, University of Chicago, Chicago, IL
| | - Wendy Stock
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Anand Ashwin Patel
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| |
Collapse
|
16
|
Wang P, Segal J, Drazer MW, Venkataraman G, Arber DA, Gurbuxani S. NPM1
exon 5 mutations in acute myeloid leukemia: Implications in diagnosis and minimal residual monitoring. eJHaem 2022; 3:962-965. [PMID: 36051025 PMCID: PMC9421992 DOI: 10.1002/jha2.445] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 03/29/2022] [Accepted: 04/06/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Peng Wang
- Department of Pathology University of Chicago Chicago Illinois USA
| | - Jeremy Segal
- Department of Pathology University of Chicago Chicago Illinois USA
| | | | | | - Daniel A. Arber
- Department of Pathology University of Chicago Chicago Illinois USA
| | | |
Collapse
|
17
|
Derman BA, Kansagra A, Zonder J, Stefka AT, Grinblatt DL, Anderson LD, Gurbuxani S, Narula S, Rayani S, Major A, Kin A, Jiang K, Karrison T, Jasielec J, Jakubowiak AJ. Elotuzumab and Weekly Carfilzomib, Lenalidomide, and Dexamethasone in Patients With Newly Diagnosed Multiple Myeloma Without Transplant Intent: A Phase 2 Measurable Residual Disease-Adapted Study. JAMA Oncol 2022; 8:1278-1286. [PMID: 35862034 DOI: 10.1001/jamaoncol.2022.2424] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Importance Treatment of newly diagnosed multiple myeloma (NDMM) with a quadruplet regimen consisting of a monoclonal antibody, proteasome inhibitor, immunomodulatory imide, and corticosteroid has been associated with improved progression-free survival (PFS) compared with triplet regimens. The optimal quadruplet combination, and whether this obviates the need for frontline autologous stem cell transplant (ASCT), remains unknown. We evaluated elotuzumab and weekly carfilzomib, lenalidomide, and dexamethasone (Elo-KRd) without ASCT in NDMM. Objective To investigate the efficacy of Elo-KRd using a measurable residual disease (MRD)-adapted design in NDMM regardless of ASCT eligibility. Design, Setting, and Participants This multicenter, single-arm, phase 2 study enrolled patients between July 2017 and February 2021. Median follow-up was 29 months. Interventions Twelve to 24 cycles of Elo-KRd; consecutive MRD-negative results at 10-6 by next-generation sequencing (NGS) after cycles 8 (C8) and 12 determined the duration of Elo-KRd. This was followed by Elo-Rd (no carfilzomib) maintenance therapy until disease progression. Main Outcomes and Measures The primary end point was the rate of stringent complete response (sCR) and/or MRD-negativity (10-5) after C8 Elo-KRd. Secondary end points included safety, rate of response, MRD status, PFS, and overall survival (OS). As an exploratory analysis, MRD was assessed using liquid chromatography mass spectrometry (MS) on peripheral blood samples. Results Forty-six patients were enrolled (median age 62 years, 11 [24%] aged >70 years). Overall, 32 (70%) were White, 6 (13%) were Black, 3 (6%) were more than 1 race, and 5 (11%) were of unknown race. Thirty-three (72%) were men and 13 (28%) were women. High-risk cytogenetic abnormalities were present in 22 (48%) patients. The rate of sCR and/or MRD-negativity after C8 was 26 of 45 (58%), meeting the predefined statistical threshold for efficacy. Responses deepened over time, with the MRD-negativity (10-5) rate increasing to 70% and MS-negativity rate increasing to 65%; concordance between MRD by NGS and MS increased over time. The most common (>10%) grade 3 or 4 adverse events were lung and nonpulmonary infections (13% and 11%, respectively). There was 1 grade 5 myocardial infarction. The estimated 3-year PFS was 72% overall and 92% for patients with MRD-negativity (10-5) at C8. Conclusions and Relevance An MRD-adapted design using elotuzumab and weekly KRd without ASCT showed a high rate of sCR and/or MRD-negativity and durable responses. This approach provides support for further evaluation of MRD-guided deescalation of therapy to decrease treatment exposure while sustaining deep responses. Trial Registration ClinicalTrials.gov Identifier: NCT02969837.
Collapse
Affiliation(s)
| | - Ankit Kansagra
- Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, Texas
| | - Jeffrey Zonder
- Karmanos Cancer Institute, Wayne State University, Detroit, Michigan
| | | | | | - Larry D Anderson
- Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, Texas
| | | | - Sunil Narula
- University of Chicago Medical Center, Chicago, Illinois
| | - Shayan Rayani
- University of Chicago Medical Center, Chicago, Illinois
| | - Ajay Major
- University of Chicago Medical Center, Chicago, Illinois
| | - Andrew Kin
- Karmanos Cancer Institute, Wayne State University, Detroit, Michigan
| | - Ken Jiang
- University of Chicago Medical Center, Chicago, Illinois
| | | | | | | |
Collapse
|
18
|
Ibarra J, Elbanna YA, Kurylowicz K, Ciboddo M, Greenbaum HS, Arellano NS, Rodriguez D, Evers M, Bock-Hughes A, Liu C, Smith Q, Lutze J, Baumeister J, Kalmer M, Olschok K, Nicholson B, Silva D, Maxwell L, Dowgielewicz J, Rumi E, Pietra D, Casetti IC, Catricala S, Koschmieder S, Gurbuxani S, Schneider RK, Oakes SA, Elf SE. Type I but Not Type II Calreticulin Mutations Activate the IRE1α/XBP1 Pathway of the Unfolded Protein Response to Drive Myeloproliferative Neoplasms. Blood Cancer Discov 2022; 3:298-315. [PMID: 35405004 PMCID: PMC9338758 DOI: 10.1158/2643-3230.bcd-21-0144] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 01/21/2022] [Accepted: 04/08/2022] [Indexed: 01/09/2023] Open
Abstract
Approximately 20% of patients with myeloproliferative neoplasms (MPN) harbor mutations in the gene calreticulin (CALR), with 80% of those mutations classified as either type I or type II. While type II CALR-mutant proteins retain many of the Ca2+ binding sites present in the wild-type protein, type I CALR-mutant proteins lose these residues. The functional consequences of this differential loss of Ca2+ binding sites remain unexplored. Here, we show that the loss of Ca2+ binding residues in the type I mutant CALR protein directly impairs its Ca2+ binding ability, which in turn leads to depleted endoplasmic reticulum (ER) Ca2+ and subsequent activation of the IRE1α/XBP1 pathway of the unfolded protein response. Genetic or pharmacologic inhibition of IRE1α/XBP1 signaling induces cell death in type I mutant but not type II mutant or wild-type CALR-expressing cells, and abrogates type I mutant CALR-driven MPN disease progression in vivo. SIGNIFICANCE Current targeted therapies for CALR-mutated MPNs are not curative and fail to differentiate between type I- versus type II-driven disease. To improve treatment strategies, it is critical to identify CALR mutation type-specific vulnerabilities. Here we show that IRE1α/XBP1 represents a unique, targetable dependency specific to type I CALR-mutated MPNs. This article is highlighted in the In This Issue feature, p. 265.
Collapse
Affiliation(s)
- Juan Ibarra
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois
- Committee on Cancer Biology, University of Chicago, Chicago, Illinois
| | - Yassmin A. Elbanna
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois
| | - Katarzyna Kurylowicz
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois
| | - Michele Ciboddo
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois
| | - Harrison S. Greenbaum
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois
| | - Nicole S. Arellano
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois
| | - Deborah Rodriguez
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois
| | - Maria Evers
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois
- Committee on Cancer Biology, University of Chicago, Chicago, Illinois
| | - Althea Bock-Hughes
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois
- Committee on Molecular Metabolism and Nutrition, University of Chicago, Chicago, Illinois
| | - Chenyu Liu
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois
| | - Quinn Smith
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois
| | - Julian Lutze
- Committee on Cancer Biology, University of Chicago, Chicago, Illinois
- Department of Molecular Genetics and Cell Biology, University of Chicago, Chicago, Illinois
| | - Julian Baumeister
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University and Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Aachen, Germany
| | - Milena Kalmer
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University and Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Aachen, Germany
| | - Kathrin Olschok
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University and Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Aachen, Germany
| | - Benjamin Nicholson
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois
- Committee on Cancer Biology, University of Chicago, Chicago, Illinois
| | - Diane Silva
- Department of Pathology, University of Chicago, Chicago, Illinois
| | - Luke Maxwell
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois
| | - Jonathan Dowgielewicz
- Committee on Molecular Metabolism and Nutrition, University of Chicago, Chicago, Illinois
| | - Elisa Rumi
- Department of Hematology Oncology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Policlinico San Matteo, Pavia, Italy
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Daniela Pietra
- Department of Hematology Oncology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Policlinico San Matteo, Pavia, Italy
| | | | - Silvia Catricala
- Department of Hematology Oncology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Policlinico San Matteo, Pavia, Italy
| | - Steffen Koschmieder
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University and Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Aachen, Germany
| | | | - Rebekka K. Schneider
- Department of Cell Biology, Institute for Biomedical Technologies, RWTH Aachen University, Aachen, Germany
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | - Scott A. Oakes
- Committee on Cancer Biology, University of Chicago, Chicago, Illinois
- Department of Pathology, University of Chicago, Chicago, Illinois
| | - Shannon E. Elf
- The Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois
- Committee on Cancer Biology, University of Chicago, Chicago, Illinois
| |
Collapse
|
19
|
Ibarra J, Elbanna Y, Kurylowicz K, Ciboddo M, Greenbaum HS, Arellano NS, Rodriguez D, Evers M, Yang D, Bock-Hughes A, Liu C, Smith Q, Baumeister J, Kalmer M, Olschok K, Nicholson B, Silva D, Dowgielewicz3 J, Rumi E, Pietra D, Casetti IC, Koschmieder5 S, Gurbuxani S, Schneider RK, Oakes SA, Elf SE. Abstract LB134: Type 1 calreticulin mutations differentially activate the IRE1α-XBP1 pathway of the unfolded protein response to drive myeloproliferative neoplasms. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-lb134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Approximately 20% of patients with myeloproliferative neoplasms (MPN) harbor mutations in the gene calreticulin (CALR). 80% of CALR mutations are classified as either type 1 or type 2, exemplified by a 52 bp deletion (CALRdel52) and a 5 bp insertion (CALRins5), respectively. Despite their shared mutant C-termini and mutual ability to bind and activate MPL, patients with type 1 and type 2 CALR mutations display significant clinical and prognostic differences. Type 1 mutations are primarily associated with an MF phenotype and a higher risk of fibrotic transformation from ET, while type 2 mutations are more common in ET. Molecularly, type 2 CALR mutant proteins retain many of the calcium binding sites present in the wild type protein, while type 1 CALR mutant proteins lose these residues. The functional consequences of this differential loss of calcium binding sites remain yet unexplored. Current targeted therapies for CALR mutated MPN are not curative, and treatment does not differentiate between type 1 versus type 2 mutant CALR-driven disease, despite the different phenotypic and prognostic outcomes in these patients. In order to improve treatment strategies for CALR mutated MPN patients, it is critical to identify specific dependencies unique to each CALR mutation type that can be exploited for therapeutic gain. Here, we show that type 1 CALRdel52 but not type 2 CALRins5 mutations lead to activation of and dependency on the IRE1α-XBP1 pathway of the unfolded protein response (UPR). Mechanistically, we found that the loss of calcium binding residues in the type 1 mutant CALR protein directly impairs its calcium binding ability, which in turn leads to depleted ER calcium and subsequent activation of the IRE1α-XBP1 pathway. Using cell lines and primary MPN patient samples, we identified two novel transcriptional targets of XBP1 specific to CALRdel52-expressing cells - the anti-apoptotic protein BCL-2 and the calcium efflux channel IP3R. We show that BCL-2 acts downstream of XBP1 to promote survival in the face of depleted ER calcium, while IP3R is up-regulated downstream of XBP1 to promote continued ER calcium efflux in order to sustain IRE1α-XBP1 pathway activation and survival. We found that genetic or pharmacological inhibition of IRE1α-XBP1 signaling induced cell death only in type 1 mutant but not type 2 mutant or wild type CALR-expressing cells. Moreover, we show that in vivo inhibition of IRE1α significantly abrogates type 1 mutant CALR-driven disease in a bone marrow transplantation model. This work is the first to demonstrate that type 1 and type 2 mutant CALR-expressing cells display differential molecular dependencies that can be exploited for therapeutic gain. Moreover, this study answers an enduring question regarding the functional consequence of the loss of calcium binding sites on the type 1 mutant CALR protein, and demonstrates how type 1 CALR mutant-expressing cells rewire the UPR, downstream calcium signaling, and apoptotic pathways to drive MPN.
Citation Format: Juan Ibarra, Yassmin Elbanna, Katarzyna Kurylowicz, Michele Ciboddo, Harrison S. Greenbaum, Nicole S. Arellano, Deborah Rodriguez, Maria Evers, Dongbo Yang, Althea Bock-Hughes, Chenyu Liu, Quinn Smith, Julian Baumeister, Milena Kalmer, Kathrin Olschok, Benjamin Nicholson, Diane Silva, Jonathan Dowgielewicz3, Elisa Rumi, Daniela Pietra, Ilaria Carola Casetti, Steffen Koschmieder5, Sandeep Gurbuxani, Rebekka K. Schneider, Scott A. Oakes, Shannon E. Elf. Type 1 calreticulin mutations differentially activate the IRE1α-XBP1 pathway of the unfolded protein response to drive myeloproliferative neoplasms [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr LB134.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Elisa Rumi
- 3Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Policlinico San Matteo, Pavia, Italy
| | | | - Ilaria Carola Casetti
- 3Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Policlinico San Matteo, Pavia, Italy
| | | | | | | | | | | |
Collapse
|
20
|
Siddiqui F, Perez Silos V, Karube K, Yasin Goksu S, Nandakumar S, Saygin C, Onajin O, Prabu SS, Gurbuxani S, Arber DA, Tjota M, Segal J, Smith SM, Murga-Zamalloa CA, Venkataraman G. B-cell lymphoma-2 (BCL2) downregulation is a useful feature -supporting a neoplastic phenotype in mature T-cell lymphomas. Hum Pathol 2022; 125:48-58. [PMID: 35452696 DOI: 10.1016/j.humpath.2022.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/28/2022] [Accepted: 04/04/2022] [Indexed: 11/17/2022]
Abstract
Normal T-cells express high levels of BCL2 protein, data regarding BCL2 expression status and its diagnostic utility in T-cell lymphoma is scarce. We evaluated BCL2 expression in a series of mature T-cell lymphoproliferations including indolent and more recently recognized entities (follicular helper T-cell (TFH) lymphomas). Sixty-six neoplastic biopsies (60 patients) representing mature nodal, extranodal and leukemia T-cell neoplasms were collected from three institutes (2 US and 1 Japan) and were compared with reactive T-cells in 8 benign tissues/blood and 9 T-cell rich B-cell proliferations. BCL2 immunostaining was performed and scored based on intensity weighted H-score (0-300). Next generation sequencing (5 cases), BCL2 gene sequencing, and real time-PCR (3 cases) were conducted. Association of H-score with overall survival (using proportional hazards modeling) was assessed in non-leukemic T-cell lymphoproliferations (TCL). Most TCLs showed significantly downregulated median BCL2 H-score (125, range 18-300) with the exception of T-cell prolymphocytic leukemia (T-PLL) and hepatosplenic T-cell lymphoma (HSTL) both of which showed uniform strong retention of BCL2 as did the 8 reactive tissues (median H-score 280; p=0.000). Notably all TFH lymphoma CD4 neoplastic T-cells, subcutaneous panniculitis-like T-cell lymphoma (SPTCL) CD8 adipocyte-rimming T-cells and T-cell large lymphocyte leukemia (T-LGLL) with pathogenic STAT5B and TP53 mutation showed BCL2 downregulation. No BCL2 mutations were observed by NGS or sequencing with decreased BCL2 mRNA transcripts by real-time PCR. BCL2 downregulation is pervasive among many T-cell lymphoproliferations and unrelated to any mutations. There is utility for BCL2 immunostaining in some challenging situations as discussed in manuscript.
Collapse
MESH Headings
- Down-Regulation
- Humans
- Leukemia
- Lymphoma, B-Cell/genetics
- Lymphoma, B-Cell/metabolism
- Lymphoma, B-Cell/pathology
- Lymphoma, T-Cell/genetics
- Lymphoma, T-Cell/metabolism
- Lymphoma, T-Cell/pathology
- Lymphoma, T-Cell, Peripheral/metabolism
- Lymphoma, T-Cell, Peripheral/pathology
- Phenotype
- Proto-Oncogene Proteins c-bcl-2/genetics
- Proto-Oncogene Proteins c-bcl-2/metabolism
Collapse
Affiliation(s)
- Faiza Siddiqui
- The University of Chicago Medicine, Departments of Pathology, Section of Hematopathology, USA
| | | | - Kennosuke Karube
- Department of Pathology and Cell Biology, University of the Ryukyus, Okinawa, Japan
| | | | | | - Caner Saygin
- The University of Chicago Medicine, Departments of Medicine, Section of Hematology/Oncology, USA
| | - Oluwakemi Onajin
- The University of Chicago Medicine, Departments of Dermatology, USA
| | | | - Sandeep Gurbuxani
- The University of Chicago Medicine, Departments of Pathology, Section of Hematopathology, USA
| | - Daniel A Arber
- The University of Chicago Medicine, Departments of Pathology, Section of Hematopathology, USA
| | - Melissa Tjota
- The University of Chicago Medicine, Departments of Pathology, Section of Hematopathology, USA
| | - Jeremy Segal
- The University of Chicago Medicine, Departments of Pathology, Section of Hematopathology, USA
| | - Sonali M Smith
- The University of Chicago Medicine, Departments of Medicine, Section of Hematology/Oncology, USA
| | | | - Girish Venkataraman
- The University of Chicago Medicine, Departments of Pathology, Section of Hematopathology, USA.
| |
Collapse
|
21
|
Kaumeyer BA, Fidai SS, Thakral B, Wang SA, Arber DA, Cheng JX, Gurbuxani S, Venkataraman G. GLUT1 Immunohistochemistry Is a Highly Sensitive and Relatively Specific Marker for Erythroid Lineage in Benign and Malignant Hematopoietic Tissues. Am J Clin Pathol 2022; 158:228-234. [PMID: 35311938 DOI: 10.1093/ajcp/aqac034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 02/21/2022] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES Glucose transporter 1 (GLUT1), a glucose transporter, is an abundant protein in erythrocytes with expression beginning early in erythropoiesis. We sought to evaluate the utility of GLUT1 immunohistochemistry (IHC) as a diagnostic marker for identifying erythroid differentiation in hematopoietic tissues, including neoplastic erythroid proliferations. METHODS A variety of benign and neoplastic bone marrow biopsy specimens containing variable proportions of erythroid precursors were selected (n = 46, including 36 cases of leukemia). GLUT1 IHC was performed using a commercially available polyclonal antibody. Each case was evaluated for staining of erythroid precursors, nonerythroid hematopoietic cells, and blasts. A GATA1/GLUT1 double stain was performed on one case to confirm coexpression of GLUT1 on early erythroid precursors. Staining was compared with other erythroid markers, including glycophorin C. RESULTS GLUT1 demonstrated strong membranous staining in erythroid precursors of all cases, which was restricted largely to the erythroid lineage. Of the 36 leukemia cases, all 6 cases of pure erythroid leukemia and both cases of therapy-related acute myeloid leukemia with erythroid differentiation showed positive GLUT1 staining in blasts. Otherwise, only lymphoblasts in B-lymphoblastic leukemia showed weak to moderate granular cytoplasmic staining (four of five cases). CONCLUSIONS GLUT1 IHC is a highly sensitive and relatively specific marker for erythroid lineage in benign and neoplastic bone marrow biopsy specimens.
Collapse
Affiliation(s)
| | - Shiraz S Fidai
- Department of Pathology, University of Chicago, Chicago, IL, USA
- Department of Pathology and Laboratory Medicine, John H. Stroger Hospital of Cook County, Chicago, IL, USA
| | - Beenu Thakral
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sa A Wang
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Daniel A Arber
- Department of Pathology, University of Chicago, Chicago, IL, USA
| | - Jason X Cheng
- Department of Pathology, University of Chicago, Chicago, IL, USA
| | | | | |
Collapse
|
22
|
Tariq H, Barnea Slonim L, Coty Fattal Z, Alikhan MB, Segal J, Gurbuxani S, Helenowski IB, Zhang H, Sukhanova M, Lu X, Altman JK, Chen QC, Behdad A. Therapy-related myeloid neoplasms with normal karyotype show distinct genomic and clinical characteristics compared to their counterparts with abnormal karyotype. Br J Haematol 2022; 197:736-744. [PMID: 35304738 DOI: 10.1111/bjh.18154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/05/2022] [Accepted: 03/08/2022] [Indexed: 01/13/2023]
Abstract
Therapy-related myeloid neoplasms (t-MNs) are a complication of treatment with cytotoxic chemotherapy and/or radiation therapy. The majority of t-MNs show chromosomal abnormalities associated with myelodysplastic syndrome (MDS) or KMT2A rearrangements and are characterized by poor clinical outcomes. A small but substantial subset of patients have normal karyotype (NK) and their clinical characteristics and mutational profiles are not well studied. We retrospectively studied patients diagnosed with t-MN at three institutions and compared the mutational profile and survival data between t-MNs with NK and t-MNs with abnormal karyotype (AK). A total of 204 patients with t-MN were identified including 158 with AK and 46 with NK. NK t-MNs, compared to AK, were enriched for mutations in TET2 (p < 0.0001), NPM1 (p < 0.0001), ASXL1 (p = 0.0003), SRSF2 (p < 0.0001), RUNX1 (p = 0.0336) and STAG2 (p = 0.0099) and showed a significantly lower frequency of TP53 mutations (p < 0.0001). Overall survival (OS) was significantly lower in AK t-MNs as compared to NK cases (p = 0.0094). In our study, NK t-MNs showed a significantly better OS, a higher prevalence of MN-associated mutations and a lower frequency of TP53 mutations compared to their AK counterparts. The distinct clinical and mutational profile of NK t-MNs merits a separate classification.
Collapse
Affiliation(s)
- Hamza Tariq
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | | | - Zachary Coty Fattal
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Mir B Alikhan
- Department of Pathology, NorthShore University Health System, Evanston, Illinois, USA
| | - Jeremy Segal
- Department of Pathology, The University of Chicago, Chicago, Illinois, USA
| | - Sandeep Gurbuxani
- Department of Pathology, The University of Chicago, Chicago, Illinois, USA
| | - Irene B Helenowski
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Hui Zhang
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Madina Sukhanova
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Xinyan Lu
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jessica K Altman
- Department of Medicine (Hematology and Oncology), Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Qing C Chen
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Amir Behdad
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.,Department of Medicine (Hematology and Oncology), Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| |
Collapse
|
23
|
Kaumeyer B, Fidai S, Sukhanova M, Yap KL, Segal J, Raca G, Stock W, McNeer J, Lager AM, Gurbuxani S. MUC4 expression by immunohistochemistry is a specific marker for BCR-ABL1+ and BCR-ABL1-like B-lymphoblastic leukemia. Leuk Lymphoma 2022; 63:1436-1444. [PMID: 35171727 DOI: 10.1080/10428194.2022.2025797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BCR-ABL1-like B-acute lymphoblastic leukemia (B-ALL) is a genetically heterogeneous group of high-risk B-ALL that benefits from targeted tyrosine kinase inhibitor (TKI) therapy. The incidence of this high-risk B-ALL is relatively low and screening with surrogate markers will be useful to identify patients for further genetic testing. Here we demonstrate that widely available MUC4 protein immunohistochemistry (IHC) is predictive of a BCR-ABL1-like genotype for a subset of patients. Overall, MUC4 expression was observed in 36% (9/25) BCR-ABL1-like, 43% (3/7) BCR-ABL1+ and 9% (2/22) B-ALL other cases (p=.019 for BCR-ABL1 like and BCR-ABL1+ versus B-ALL others). Furthermore, 83% (5/6) of patients with ABL class fusions showed MUC4 expression when compared to 25% (4/16, p=.006) patients with JAK class fusions. Overall, the study demonstrates that MUC4 expression is highly specific (90.9%) for BCR-ABL1+ and BCR-ABL1-like B-ALL with high sensitivity for cases with ABL class fusions.
Collapse
Affiliation(s)
| | - Shiraz Fidai
- Department of Pathology, University of Chicago, Chicago, IL, USA.,Department of Pathology and Laboratory Medicine, John H. Stroger Hospital of Cook County, Chicago, IL, USA
| | - Madina Sukhanova
- Department of Medicine. University of Chicago, Chicago, IL, USA.,Department of Pathology & Laboratory Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Kai Lee Yap
- Department of Medicine. University of Chicago, Chicago, IL, USA.,Department of Pathology & Laboratory Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Jeremy Segal
- Department of Pathology, University of Chicago, Chicago, IL, USA
| | - Gordana Raca
- Department of Medicine. University of Chicago, Chicago, IL, USA.,Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, California, LA, USA
| | - Wendy Stock
- Department of Medicine. University of Chicago, Chicago, IL, USA
| | - Jennifer McNeer
- Department of Pediatrics, University of Chicago, Chicago, IL, USA
| | - Angela M Lager
- Department of Medicine. University of Chicago, Chicago, IL, USA
| | | |
Collapse
|
24
|
Gao J, Gurbuxani S, Zak T, Kocherginsky M, Ji P, Wehbe F, Chen Q, Chen YH, Lu X, Jennings L, Frankfurt O, Altman J, Sukhanova M. Comparison of myeloid neoplasms with nonclassic 3q26.2/MECOM versus classic inv(3)/t(3;3) rearrangements reveals diverse clinicopathologic features, genetic profiles, and molecular mechanisms of MECOM activation. Genes Chromosomes Cancer 2022; 61:71-80. [PMID: 34668265 DOI: 10.1002/gcc.23004] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 10/09/2021] [Accepted: 10/12/2021] [Indexed: 11/05/2022] Open
Abstract
MECOM rearrangements are recurrent in myeloid neoplasms and associated with poor prognosis. However, only inv(3)(q21q26.2) and t(3;3)(q21;q26.2), the classic MECOM rearrangements resulting in RPN1-MECOM rearrangement with Mecom overexpression and GATA2 haploinsufficiency, define the distinct subtype of acute myeloid leukemia (AML), and serve as presumptive evidence for myelodysplastic syndrome based on the current World Health Organization classification. Myeloid neoplasms with nonclassic 3q26.2/MECOM rearrangements have been found to be clinically aggressive, but comparative analysis of clinicopathologic and genomic features is limited. We retrospectively studied cohorts of myeloid neoplasms with classic and nonclassic MECOM rearrangements. Cases with classic rearrangements consisted predominantly of AML, often with inv(3) or t(3;3) as the sole chromosome abnormality, whereas the group of nonclassic rearrangements included a variety of myeloid neoplasms, often with complex karyotype without TP53 mutations and similarly dismal overall survival. Immunohistochemistry revealed Mecom protein overexpression in both groups, but overexpression in cases with nonclassic rearrangements was mediated through a mechanism other than GATA2 distal enhancer involvement typical for classic rearrangement. Our results demonstrated that myeloid neoplasms with nonclassic 3q26.2/MECOM rearrangements encompass a diverse group of diseases with poor clinical outcome, overexpression of Mecom protein as a result of the nonclassic mechanism of MECOM activation.
Collapse
Affiliation(s)
- Juehua Gao
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Sandeep Gurbuxani
- Department of Pathology, University of Chicago, Chicago, Illinois, USA
| | - Taylor Zak
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Masha Kocherginsky
- Department of Preventive Medicine (Health and Biomedical Informatics), Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Peng Ji
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Firas Wehbe
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Department of Preventive Medicine (Health and Biomedical Informatics), Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Qing Chen
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Yi-Hua Chen
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Xinyan Lu
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Lawrence Jennings
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Olga Frankfurt
- Department of Hematology and Oncology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jessica Altman
- Department of Hematology and Oncology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Madina Sukhanova
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| |
Collapse
|
25
|
Patel AA, Heng J, Dworkin E, Monick S, Derman BA, DuVall AS, Gurbuxani S, Kosuri S, Liu H, Thirman M, Godley LA, Odenike O, Larson RA, Stock W. Efficacy and tolerability of a modified pediatric‐inspired intensive regimen for acute lymphoblastic leukemia in older adults. eJHaem 2021; 2:413-420. [PMID: 35844676 PMCID: PMC9175801 DOI: 10.1002/jha2.224] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 11/08/2022]
Affiliation(s)
- Anand Ashwin Patel
- Department of Medicine Section of Hematology‐Oncology University of Chicago Chicago Illinois USA
| | - Joseph Heng
- Department of Medicine Section of Hematology‐Oncology University of Chicago Chicago Illinois USA
| | - Emily Dworkin
- Department of Pharmacy University of Chicago Chicago Illinois USA
| | - Sarah Monick
- Department of Medicine University of Chicago Chicago Illinois USA
| | - Benjamin A. Derman
- Department of Medicine Section of Hematology‐Oncology University of Chicago Chicago Illinois USA
| | - Adam S. DuVall
- Department of Medicine Section of Hematology‐Oncology University of Chicago Chicago Illinois USA
| | - Sandeep Gurbuxani
- Department of Pathology Section of Hematopathology University of Chicago Chicago Illinois USA
| | - Satyajit Kosuri
- Department of Medicine Section of Hematology‐Oncology University of Chicago Chicago Illinois USA
| | - Hongtao Liu
- Department of Medicine Section of Hematology‐Oncology University of Chicago Chicago Illinois USA
| | - Michael Thirman
- Department of Medicine Section of Hematology‐Oncology University of Chicago Chicago Illinois USA
| | - Lucy A. Godley
- Department of Medicine Section of Hematology‐Oncology University of Chicago Chicago Illinois USA
| | - Olatoyosi Odenike
- Department of Medicine Section of Hematology‐Oncology University of Chicago Chicago Illinois USA
| | - Richard A. Larson
- Department of Medicine Section of Hematology‐Oncology University of Chicago Chicago Illinois USA
| | - Wendy Stock
- Department of Medicine Section of Hematology‐Oncology University of Chicago Chicago Illinois USA
| |
Collapse
|
26
|
Marinaccio C, Suraneni P, Celik H, Volk A, Wen QJ, Ling T, Bulic M, Lasho T, Koche RP, Famulare CA, Farnoud N, Stein B, Schieber M, Gurbuxani S, Root DE, Younger ST, Hoffman R, Gangat N, Ntziachristos P, Chandel NS, Levine RL, Rampal RK, Challen GA, Tefferi A, Crispino JD. LKB1/ STK11 Is a Tumor Suppressor in the Progression of Myeloproliferative Neoplasms. Cancer Discov 2021; 11:1398-1410. [PMID: 33579786 PMCID: PMC8178182 DOI: 10.1158/2159-8290.cd-20-1353] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/18/2020] [Accepted: 02/09/2021] [Indexed: 12/30/2022]
Abstract
The myeloproliferative neoplasms (MPN) frequently progress to blast phase disease, an aggressive form of acute myeloid leukemia. To identify genes that suppress disease progression, we performed a focused CRISPR/Cas9 screen and discovered that depletion of LKB1/Stk11 led to enhanced in vitro self-renewal of murine MPN cells. Deletion of Stk11 in a mouse MPN model caused rapid lethality with enhanced fibrosis, osteosclerosis, and an accumulation of immature cells in the bone marrow, as well as enhanced engraftment of primary human MPN cells in vivo. LKB1 loss was associated with increased mitochondrial reactive oxygen species and stabilization of HIF1α, and downregulation of LKB1 and increased levels of HIF1α were observed in human blast phase MPN specimens. Of note, we observed strong concordance of pathways that were enriched in murine MPN cells with LKB1 loss with those enriched in blast phase MPN patient specimens, supporting the conclusion that STK11 is a tumor suppressor in the MPNs. SIGNIFICANCE: Progression of the myeloproliferative neoplasms to acute myeloid leukemia occurs in a substantial number of cases, but the genetic basis has been unclear. We discovered that loss of LKB1/STK11 leads to stabilization of HIF1a and promotes disease progression. This observation provides a potential therapeutic avenue for targeting progression.This article is highlighted in the In This Issue feature, p. 1307.
Collapse
Affiliation(s)
| | | | - Hamza Celik
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Andrew Volk
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | | | - Te Ling
- St. Jude Children's Research Hospital, Memphis, Tennessee
| | | | | | - Richard P Koche
- Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, New York
| | | | - Noushin Farnoud
- Center for Hematologic Malignancies, Memorial Sloan Kettering, New York, New York
| | | | | | | | - David E Root
- Broad Institute of Harvard and MIT, Cambridge, Massachusetts
| | - Scott T Younger
- Broad Institute of Harvard and MIT, Cambridge, Massachusetts
| | | | | | - Panagiotis Ntziachristos
- Northwestern University, Chicago, Illinois
- Department of Biochemistry and Molecular Genetics, Northwestern University, Chicago, Illinois
- Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | | | - Ross L Levine
- Leukemia Service, Department of Medicine, Memorial Sloan Kettering, New York, New York
| | - Raajit K Rampal
- Center for Hematologic Malignancies, Memorial Sloan Kettering, New York, New York
- Leukemia Service, Department of Medicine, Memorial Sloan Kettering, New York, New York
| | - Grant A Challen
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | | | - John D Crispino
- Northwestern University, Chicago, Illinois.
- St. Jude Children's Research Hospital, Memphis, Tennessee
| |
Collapse
|
27
|
McMullen P, Pytel P, Snyder A, Smith H, Vickery J, Brainer J, Guzy R, Wu D, Schoettler N, Adegunsoye A, Sperling A, Hart J, Alpert L, Chang A, Gurbuxani S, Krausz T, Husain AN, Mueller J. A series of COVID-19 autopsies with clinical and pathologic comparisons to both seasonal and pandemic influenza. J Pathol Clin Res 2021; 7:459-470. [PMID: 33960723 PMCID: PMC8239851 DOI: 10.1002/cjp2.220] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/25/2021] [Accepted: 04/06/2021] [Indexed: 12/24/2022]
Abstract
Autopsies of patients who have died from COVID‐19 have been crucial in delineating patterns of injury associated with SARS‐CoV‐2 infection. Despite their utility, comprehensive autopsy studies are somewhat lacking relative to the global burden of disease, and very few comprehensive studies contextualize the findings to other fatal viral infections. We developed a novel autopsy protocol in order to perform postmortem examinations on victims of COVID‐19 and herein describe detailed clinical information, gross findings, and histologic features observed in the first 16 complete COVID‐19 autopsies. We also critically evaluated the role of ancillary studies used to establish a diagnosis of COVID‐19 at autopsy, including immunohistochemistry (IHC), in situ hybridization (ISH), and electron microscopy (EM). IHC and ISH targeting SARS‐CoV‐2 were comparable in terms of the location and number of infected cells in lung tissue; however, nonspecific staining of bacteria was seen occasionally with IHC. EM was unrevealing in blindly sampled tissues. We then compared the clinical and histologic features present in this series to six archival cases of fatal seasonal influenza and six archival cases of pandemic influenza from the fourth wave of the ‘Spanish Flu’ in the winter of 1920. In addition to routine histology, the inflammatory infiltrates in the lungs of COVID‐19 and seasonal influenza victims were compared using quantitative IHC. Our results demonstrate that the clinical and histologic features of COVID‐19 are similar to those seen in fatal cases of influenza, and the two diseases tend to overlap histologically. There was no significant difference in the composition of the inflammatory infiltrate in COVID‐19 and influenza at sites of acute lung injury at the time of autopsy. Our study underscores the relatively nonspecific clinical features and pathologic changes shared between severe cases of COVID‐19 and influenza, while also providing important caveats to ancillary methods of viral detection.
Collapse
Affiliation(s)
- Phillip McMullen
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA
| | - Peter Pytel
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA
| | - Alexis Snyder
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA
| | - Heather Smith
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA
| | - Jasmine Vickery
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA
| | - James Brainer
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA
| | - Robert Guzy
- Department of Medicine, Section of Pulmonary and Critical Care Medicine, University of Chicago Medical Center, Chicago, IL, USA
| | - David Wu
- Department of Medicine, Section of Pulmonary and Critical Care Medicine, University of Chicago Medical Center, Chicago, IL, USA
| | - Nathan Schoettler
- Department of Medicine, Section of Pulmonary and Critical Care Medicine, University of Chicago Medical Center, Chicago, IL, USA
| | - Ayodeji Adegunsoye
- Department of Medicine, Section of Pulmonary and Critical Care Medicine, University of Chicago Medical Center, Chicago, IL, USA
| | - Anne Sperling
- Department of Medicine, Section of Pulmonary and Critical Care Medicine, University of Chicago Medical Center, Chicago, IL, USA
| | - John Hart
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA
| | - Lindsay Alpert
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA
| | - Anthony Chang
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA
| | - Sandeep Gurbuxani
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA
| | - Thomas Krausz
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA
| | - Aliya N Husain
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA
| | - Jeffrey Mueller
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA
| |
Collapse
|
28
|
Jasielec JK, Kubicki T, Raje N, Vij R, Reece D, Berdeja J, Derman BA, Rosenbaum CA, Richardson P, Gurbuxani S, Major S, Wolfe B, Stefka AT, Stephens L, Tinari KM, Hycner T, Rojek AE, Dytfeld D, Griffith KA, Zimmerman TM, Jakubowiak AJ. Carfilzomib, lenalidomide, and dexamethasone plus transplant in newly diagnosed multiple myeloma. Blood 2020; 136:2513-2523. [PMID: 32735641 PMCID: PMC7714092 DOI: 10.1182/blood.2020007522] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 07/22/2020] [Indexed: 12/22/2022] Open
Abstract
In this phase 2 multicenter study, we evaluated the incorporation of autologous stem cell transplantation (ASCT) into a carfilzomib-lenalidomide-dexamethasone (KRd) regimen for patients with newly diagnosed multiple myeloma (NDMM). Transplant-eligible patients with NDMM received 4 cycles of KRd induction, ASCT, 4 cycles of KRd consolidation, and 10 cycles of KRd maintenance. The primary end point was rate of stringent complete response (sCR) after 8 cycles of KRd with a predefined threshold of ≥50% to support further study. Seventy-six patients were enrolled with a median age of 59 years (range, 40-76 years), and 35.5% had high-risk cytogenetics. The primary end point was met, with an sCR rate of 60% after 8 cycles. Depth of response improved over time. On intent-to-treat (ITT), the sCR rate reached 76%. The rate of minimal residual disease (MRD) negativity using modified ITT was 70% according to next-generation sequencing (<10-5 sensitivity). After median follow-up of 56 months, 5-year progression-free survival (PFS) and overall survival (OS) rates were 72% and 84% for ITT, 85% and 91% for MRD-negative patients, and 57% and 72% for patients with high-risk cytogenetics. For high-risk patients who were MRD negative, 5-year rates were 77% and 81%. Grade 3 to 4 adverse events included neutropenia (34%), lymphopenia (32%), infection (22%), and cardiac events (3%). There was no grade 3 to 4 peripheral neuropathy. Patients with NDMM treated with KRd with ASCT achieved high rates of sCR and MRD-negative disease at the end of KRd consolidation. Extended KRd maintenance after consolidation contributed to deepening of responses and likely to prolonged PFS and OS. Safety and tolerability were manageable. This trial was registered at www.clinicaltrials.gov as #NCT01816971.
Collapse
Affiliation(s)
| | - Tadeusz Kubicki
- University of Chicago Medical Center, Chicago, IL
- Department of Hematology and Bone Marrow Transplantation, Poznan University of Medical Sciences, Poznan, Poland
| | - Noopur Raje
- Center for Multiple Myeloma, Massachusetts General Hospital Cancer Center, Boston, MA
| | - Ravi Vij
- Section of Stem Cell Transplant and Leukemia, Division of Medical Oncology, Washington University School of Medicine, St. Louis, MO
| | - Donna Reece
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - Jesus Berdeja
- Sarah Cannon Center for Blood Cancer, Sarah Cannon Research Institute, Nashville, TN
| | | | - Cara A Rosenbaum
- University of Chicago Medical Center, Chicago, IL
- Weill Cornell Medicine, New York, NY
| | - Paul Richardson
- Division of Hematologic Malignancy, Department of Medical Oncology, Jerome Lipper Multiple Myeloma Center, Harvard Medical School, Dana-Farber Cancer Institute, Boston, MA
| | | | - Sarah Major
- University of Chicago Medical Center, Chicago, IL
| | | | | | | | | | - Tyler Hycner
- University of Chicago Medical Center, Chicago, IL
| | | | - Dominik Dytfeld
- University of Chicago Medical Center, Chicago, IL
- Department of Hematology and Bone Marrow Transplantation, Poznan University of Medical Sciences, Poznan, Poland
| | - Kent A Griffith
- Center for Cancer Biostatistics, University of Michigan Health System, Ann Arbor, MI; and
| | - Todd M Zimmerman
- University of Chicago Medical Center, Chicago, IL
- BeiGene, San Mateo, CA
| | | |
Collapse
|
29
|
Patel AA, Cahill K, Charnot-Katsikas A, Liu H, Gurbuxani S, Thirman M, Kosuri S, Artz AS, Larson RA, Stock W, Segal J, Odenike O. Clinical outcomes of IDH2-mutated advanced-phase Ph-negative myeloproliferative neoplasms treated with enasidenib. Br J Haematol 2020; 190:e48-e51. [PMID: 32358888 DOI: 10.1111/bjh.16709] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/06/2020] [Accepted: 04/09/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Anand A Patel
- Section of Hematology/Oncology, Department of Medicine, University of Chicago Medicine, Chicago, IL, USA
| | - Kirk Cahill
- Department of Medicine, University of Chicago Medicine, Chicago, IL, USA
| | | | - Hongtao Liu
- Section of Hematology/Oncology, Department of Medicine, University of Chicago Medicine, Chicago, IL, USA
| | - Sandeep Gurbuxani
- Department of Pathology, University of Chicago Medicine, Chicago, IL, USA
| | - Michael Thirman
- Section of Hematology/Oncology, Department of Medicine, University of Chicago Medicine, Chicago, IL, USA
| | - Satyajit Kosuri
- Section of Hematology/Oncology, Department of Medicine, University of Chicago Medicine, Chicago, IL, USA
| | - Andrew S Artz
- Section of Hematology/Oncology, Department of Medicine, University of Chicago Medicine, Chicago, IL, USA.,Department of Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA, USA
| | - Richard A Larson
- Section of Hematology/Oncology, Department of Medicine, University of Chicago Medicine, Chicago, IL, USA
| | - Wendy Stock
- Section of Hematology/Oncology, Department of Medicine, University of Chicago Medicine, Chicago, IL, USA
| | - Jeremy Segal
- Department of Pathology, University of Chicago Medicine, Chicago, IL, USA
| | - Olatoyosi Odenike
- Section of Hematology/Oncology, Department of Medicine, University of Chicago Medicine, Chicago, IL, USA
| |
Collapse
|
30
|
Affiliation(s)
- Sandeep Gurbuxani
- Section of Hematopathology, Department of Pathology, University of Chicago, Chicago, IL, USA
| |
Collapse
|
31
|
Sundaravel S, Kuo WL, Jeong JJ, Choudhary GS, Gordon-Mitchell S, Liu H, Bhagat TD, McGraw KL, Gurbuxani S, List AF, Verma A, Wickrema A. Loss of Function of DOCK4 in Myelodysplastic Syndromes Stem Cells is Restored by Inhibitors of DOCK4 Signaling Networks. Clin Cancer Res 2019; 25:5638-5649. [PMID: 31308061 DOI: 10.1158/1078-0432.ccr-19-0924] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 06/13/2019] [Accepted: 07/10/2019] [Indexed: 12/17/2022]
Abstract
PURPOSE Myelodysplastic syndromes (MDS) with deletion of chromosome 7q/7 [-7/(del)7q MDS] is associated with worse outcomes and needs novel insights into pathogenesis. Reduced expression of signaling protein dedicator of cytokinesis 4 (DOCK4) in patients with -7/(del)7q MDS leads to a block in hematopoietic stem cell (HSC) differentiation. Identification of targetable signaling networks downstream of DOCK4 will provide means to restore hematopoietic differentiation in MDS.Experimental Design: We utilized phosphoproteomics approaches to identify signaling proteins perturbed as a result of reduced expression of DOCK4 in human HSCs and tested their functional significance in primary model systems. RESULTS We demonstrate that reduced levels of DOCK4 lead to increased global tyrosine phosphorylation of proteins in primary human HSCs. LYN kinase and phosphatases INPP5D (SHIP1) and PTPN6 (SHP1) displayed greatest levels of tyrosine phosphorylation when DOCK4 expression levels were reduced using DOCK4-specific siRNA. Our data also found that increased phosphorylation of SHIP1 and SHP1 phosphatases were due to LYN kinase targeting these phosphatases as substrates. Increased migration and impediment of HSC differentiation were consequences of these signaling alterations. Pharmacologic inhibition of SHP1 reversed these functional aberrations in HSCs expressing low DOCK4 levels. In addition, differentiation block seen in DOCK4 haplo-insufficient [-7/(del)7q] MDS was rescued by inhibition of SHP1 phosphatase. CONCLUSIONS LYN kinase and phosphatases SHP1 and SHIP1 are perturbed when DOCK4 expression levels are low. Inhibition of SHP1 promotes erythroid differentiation in healthy HSCs and in -7/(del)7q MDS samples with low DOCK4 expression. Inhibitors of LYN, SHP1 and SHIP1 also abrogated increased migratory properties in HSCs expressing reduced levels of DOCK4.
Collapse
Affiliation(s)
- Sriram Sundaravel
- Section of Hematology/Oncology, Department of Medicine, The University of Chicago, Chicago, Illinois
| | - Wen-Liang Kuo
- Section of Hematology/Oncology, Department of Medicine, The University of Chicago, Chicago, Illinois
| | - Jong Jin Jeong
- Section of Hematology/Oncology, Department of Medicine, The University of Chicago, Chicago, Illinois
| | - Gaurav S Choudhary
- Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, New York
| | | | - Hui Liu
- Section of Hematology/Oncology, Department of Medicine, The University of Chicago, Chicago, Illinois
| | - Tushar D Bhagat
- Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, New York
| | | | - Sandeep Gurbuxani
- Department of Pathology, The University of Chicago, Chicago, Illinois
| | | | - Amit Verma
- Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, New York
| | - Amittha Wickrema
- Section of Hematology/Oncology, Department of Medicine, The University of Chicago, Chicago, Illinois.
| |
Collapse
|
32
|
Gangat N, Marinaccio C, Swords R, Watts JM, Gurbuxani S, Rademaker A, Fought AJ, Frankfurt O, Altman JK, Wen QJ, Farnoud N, Famulare CA, Patel A, Tapia R, Vallapureddy RR, Barath S, Graf A, Handlogten A, Zblewski D, Patnaik MM, Al-Kali A, Dinh YT, Englund Prahl K, Patel S, Nobrega JC, Tejera D, Thomassen A, Gao J, Ji P, Rampal RK, Giles FJ, Tefferi A, Stein B, Crispino JD. Aurora Kinase A Inhibition Provides Clinical Benefit, Normalizes Megakaryocytes, and Reduces Bone Marrow Fibrosis in Patients with Myelofibrosis: A Phase I Trial. Clin Cancer Res 2019; 25:4898-4906. [PMID: 31061068 DOI: 10.1158/1078-0432.ccr-19-1005] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/10/2019] [Accepted: 04/30/2019] [Indexed: 11/16/2022]
Abstract
PURPOSE Myelofibrosis is characterized by bone marrow fibrosis, atypical megakaryocytes, splenomegaly, constitutional symptoms, thrombotic and hemorrhagic complications, and a risk of evolution to acute leukemia. The JAK kinase inhibitor ruxolitinib provides therapeutic benefit, but the effects are limited. The purpose of this study was to determine whether targeting AURKA, which has been shown to increase maturation of atypical megakaryocytes, has potential benefit for patients with myelofibrosis. PATIENTS AND METHODS Twenty-four patients with myelofibrosis were enrolled in a phase I study at three centers. The objective of the study was to evaluate the safety and preliminary efficacy of alisertib. Correlative studies involved assessment of the effect of alisertib on the megakaryocyte lineage, allele burden, and fibrosis. RESULTS In addition to being well tolerated, alisertib reduced splenomegaly and symptom burden in 29% and 32% of patients, respectively, despite not consistently reducing the degree of inflammatory cytokines. Moreover, alisertib normalized megakaryocytes and reduced fibrosis in 5 of 7 patients for whom sequential marrows were available. Alisertib also decreased the mutant allele burden in a subset of patients. CONCLUSIONS Given the limitations of ruxolitinib, novel therapies are needed for myelofibrosis. In this study, alisertib provided clinical benefit and exhibited the expected on-target effect on the megakaryocyte lineage, resulting in normalization of these cells and reduced fibrosis in the majority of patients for which sequential marrows were available. Thus, AURKA inhibition should be further developed as a therapeutic option in myelofibrosis.See related commentary by Piszczatowski and Steidl, p. 4868.
Collapse
Affiliation(s)
| | | | | | - Justin M Watts
- Sylvester Cancer Center, University of Miami, Miami, Florida
| | - Sandeep Gurbuxani
- Section of Hematopathology, University of Chicago, Chicago, Illinois
| | - Alfred Rademaker
- Division of Hematology/Oncology, Northwestern University, Chicago, Illinois
| | - Angela J Fought
- Division of Hematology/Oncology, Northwestern University, Chicago, Illinois
| | - Olga Frankfurt
- Division of Hematology/Oncology, Northwestern University, Chicago, Illinois
| | - Jessica K Altman
- Division of Hematology/Oncology, Northwestern University, Chicago, Illinois
| | - Qiang Jeremy Wen
- Division of Hematology/Oncology, Northwestern University, Chicago, Illinois
| | - Noushin Farnoud
- Center for Hematologic Malignancies, Memorial Sloan Kettering, New York, New York
| | | | - Akshar Patel
- Center for Hematologic Malignancies, Memorial Sloan Kettering, New York, New York
| | - Roberto Tapia
- Division of Hematology/Oncology, Northwestern University, Chicago, Illinois
| | | | - Stephanie Barath
- Division of Hematology/Oncology, Northwestern University, Chicago, Illinois
| | - Amy Graf
- Division of Hematology/Oncology, Northwestern University, Chicago, Illinois
| | | | | | | | | | | | | | - Shradha Patel
- Sylvester Cancer Center, University of Miami, Miami, Florida
| | | | - Dalissa Tejera
- Sylvester Cancer Center, University of Miami, Miami, Florida
| | - Amber Thomassen
- Sylvester Cancer Center, University of Miami, Miami, Florida
| | - Juehua Gao
- Department of Pathology, Northwestern University, Chicago, Illinois
| | - Peng Ji
- Department of Pathology, Northwestern University, Chicago, Illinois
| | - Raajit K Rampal
- Department of Medicine, Leukemia Service, Memorial Sloan Kettering, New York, New York
| | | | | | - Brady Stein
- Division of Hematology/Oncology, Northwestern University, Chicago, Illinois.
| | - John D Crispino
- Division of Hematology/Oncology, Northwestern University, Chicago, Illinois.
| |
Collapse
|
33
|
Cracolici V, Gurbuxani S, Ginat DT. Head and Neck Sinus Histiocytosis with Massive Lymphadenopathy Radiology-Pathology Correlation. Head Neck Pathol 2018; 13:656-660. [PMID: 29855802 PMCID: PMC6854207 DOI: 10.1007/s12105-018-0941-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 05/29/2018] [Indexed: 11/26/2022]
Abstract
Sinus histiocytosis with massive lymphadenopathy, or Rosai-Dorfman disease, is a rare, benign type of non-Langerhans cell histiocytosis. The radiological findings are often nonspecific, potentially mimicking malignancies. The diagnosis is ultimately made based on pathology, in which the lymph nodes are characterized by a dilated subcapsular sinus filled with histiocytes that can exhibit emperipolesis. Immunohistochemically, the histiocytes are variably CD68 positive and reliably negative for CD1a. The features of head and neck sinus histiocytosis with massive lymphadenopathy are exemplified in this radiology-pathology correlation sine qua non article.
Collapse
Affiliation(s)
| | | | - Daniel T Ginat
- Department of Radiology, University of Chicago, 5841 S Maryland Avenue, Chicago, IL, 60637, USA.
| |
Collapse
|
34
|
Dinner S, Gurbuxani S, Jain N, Stock W. Acute Lymphoblastic Leukemia in Adults. Hematology 2018. [DOI: 10.1016/b978-0-323-35762-3.00066-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
35
|
Abdel-Wahab O, Abrahm JL, Adams S, Adewoye AH, Allen C, Ambinder RF, Anasetti C, Anastasi J, Anderson JA, Antin JH, Antony AC, Araten DJ, Armand P, Armstrong G, Armstrong SA, Arnold DM, Artz AS, Awan FT, Baglin TP, Benson DM, Benz EJ, Berliner N, Bhagat G, Bhardwaj N, Bhatia R, Bhatia S, Bhatt MD, Bhatt VR, Bitan M, Blinderman CD, Bollard CM, Braun BS, Brenner MK, Brittenham GM, Brodsky RA, Brown M, Broxmeyer HE, Brummel-Ziedins K, Brunner AM, Buadi FK, Burkhardt B, Burns M, Byrd JC, Caimi PF, Caligiuri MA, Canavan M, Cantor AB, Carcao M, Carroll MC, Carty SA, Castillo JJ, Chan AK, Chapin J, Chiu A, Chute JP, Clark DB, Coates TD, Cogle CR, Connell NT, Cooke E, Cooley S, Corradini P, Creager MA, Creger RJ, Cromwell C, Crowther MA, Cushing MM, Cutler C, Dang CV, Danial NN, Dave SS, DeCaprio JA, Dinauer MC, Dinner S, Diz-Küçükkaya R, Dodd RY, Donato ML, Dorshkind K, Dotti G, Dror Y, Dunleavy K, Dvorak CC, Ebert BL, Eck MJ, Eikelboom JW, Epperla N, Ershler WB, Evans WE, Faderl S, Ferrara JL, Filipovich AH, Fischer M, Fredenburgh JC, Friedman KD, Fuchs E, Fuller SJ, Gailani D, Galipeau J, Gallagher PG, Ganapathi KA, Gardner LB, Gee AP, Gerson SL, Gertz MA, Giardina PJ, Gibson CJ, Golan K, Golub TR, Gonzales MJ, Gotlib J, Gottschalk S, Grant MA, Graubert TA, Gregg XT, Gribben JG, Gross DM, Gruber TA, Guitart J, Gurbuxani S, Gur-Cohen S, Gutierrez A, Hamadani M, Hari PN, Hartwig JH, Hayman SR, Hayward CP, Hebbel RP, Heslop HE, Hillis C, Hillyer CD, Ho K, Hockenbery DM, Hoffman R, Hogg KE, Holtan SG, Horny HP, Hsu YMS, Hunter ZR, Huntington JA, Iancu-Rubin C, Iqbal A, Isenman DE, Israels SJ, Italiano JE, Jaffe ES, Jaffer IH, Jagannath S, Jäger U, Jain N, James P, Jeha S, Jordan MB, Josephson CD, Jung M, Kager L, Kambayashi T, Kanakry JA, Kantarjian HM, Kaplan J, Karafin MS, Karsan A, Kaufman RJ, Kaufman RM, Keller FG, Kelly KM, Kessler CM, Key NS, Keyzner A, Khandoga AG, Khanna-Gupta A, Khatib-Massalha E, Klein HG, Knoechel B, Kollet O, Konkle BA, Kontoyiannis DP, Koreth J, Koretzky GA, Kotecha D, Kremyanskaya M, Kumari A, Kuzel TM, Küppers R, Lacy MQ, Ladas E, Landier W, Lapid K, Lapidot T, Larson PJ, Levi M, Lewis RE, Liebman HA, Lillicrap D, Lim W, Lin JC, Lindblad R, Lip GY, Little JA, Lohr JG, López JA, Luscinskas FW, Maciejewski JP, Majhail NS, Manches O, Mandle RJ, Mann KG, Manno CS, Marcogliese AN, Mariani G, Marincola FM, Mascarenhas J, Massberg S, McEver RP, McGrath E, McKinney MS, Mehta RS, Mentzer WC, Merlini G, Merryman R, Michel M, Migliaccio AR, Miller JS, Mims MP, Mondoro TH, Moorehead P, Muniz LR, Munshi NC, Najfeld V, Nayak L, Nazy I, Neff AT, Ness PM, Notarangelo LD, O'Brien SH, O'Connor OA, O'Donnell M, Olson A, Orkin SH, Pai M, Pai SY, Paidas M, Panch SR, Pande RL, Papayannopoulou T, Parikh R, Petersdorf EW, Peterson SE, Pittaluga S, Ponce DM, Popolo L, Prchal JT, Pui CH, Puigserver P, Rak J, Ramos CA, Rand JH, Rand ML, Rao DS, Ravandi F, Rawlings DJ, Reddy P, Reding MT, Reiter A, Rice L, Riese MJ, Ritchey AK, Roberts DJ, Roman E, Rooney CM, Rosen ST, Rosenthal DS, Rossmann MP, Rot A, Rowley SD, Rubnitz JE, Rydz N, Salama ME, Sauk S, Saunthararajah Y, Savage W, Scadden D, Schaefer KG, Schiffman F, Schneidewend R, Schrier SL, Schuchman EH, Scullion BF, Selvaggi KJ, Senoo K, Shaheen M, Shaz BH, Shelburne SA, Shpall EJ, Shurin SB, Siegal D, Silberstein LE, Silberstein L, Silverstein RL, Sloan SR, Smith FO, Smith JW, Smith K, Steensma DP, Steinberg MH, Stock W, Storry JR, Stramer SL, Strauss RG, Stroncek DF, Taylor J, Thota S, Treon SP, Tulpule A, Valdes RF, Valent P, Vedantham S, Vercellotti GM, Verneris MR, Vichinsky EP, von Andrian UH, Vose JM, Wagner AJ, Wang E, Wang JH, Warkentin TE, Wasserstein MP, Webster A, Weisdorf DJ, Weitz JI, Westhoff CM, Wheeler AP, Widick P, Wiley JS, William BM, Williams DA, Wilson WH, Wolfe J, Wolgast LR, Wood D, Wu J, Yahalom J, Yee DL, Younes A, Young NS, Zeller MP. Contributors. Hematology 2018. [DOI: 10.1016/b978-0-323-35762-3.00168-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
36
|
Gurbuxani S. The web of microRNA in B lymphoblastic leukemia. Leuk Lymphoma 2017. [PMID: 28632459 DOI: 10.1080/10428194.2017.1339240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Sandeep Gurbuxani
- a Department of Pathology , University of Chicago , Chicago , IL , USA
| |
Collapse
|
37
|
Gilles L, Arslan AD, Marinaccio C, Wen QJ, Arya P, McNulty M, Yang Q, Zhao JC, Konstantinoff K, Lasho T, Pardanani A, Stein B, Plo I, Sundaravel S, Wickrema A, Migliaccio A, Gurbuxani S, Vainchenker W, Platanias LC, Tefferi A, Crispino JD. Downregulation of GATA1 drives impaired hematopoiesis in primary myelofibrosis. J Clin Invest 2017; 127:1316-1320. [PMID: 28240607 DOI: 10.1172/jci82905] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 12/30/2016] [Indexed: 12/11/2022] Open
Abstract
Primary myelofibrosis (PMF) is a clonal hematologic malignancy characterized by BM fibrosis, extramedullary hematopoiesis, circulating CD34+ cells, splenomegaly, and a propensity to evolve to acute myeloid leukemia. Moreover, the spleen and BM of patients harbor atypical, clustered megakaryocytes, which contribute to the disease by secreting profibrotic cytokines. Here, we have revealed that megakaryocytes in PMF show impaired maturation that is associated with reduced GATA1 protein. In investigating the cause of GATA1 downregulation, our gene-expression study revealed the presence of the RPS14-deficient gene signature, which is associated with defective ribosomal protein function and linked to the erythroid lineage in 5q deletion myelodysplastic syndrome. Surprisingly, reduced GATA1 expression and impaired differentiation were limited to megakaryocytes, consistent with a proproliferative effect of a GATA1 deficiency on this lineage. Importantly, expression of GATA1 effectively rescued maturation of PMF megakaryocytes. Together, these results suggest that ribosomal deficiency contributes to impaired megakaryopoiesis in myeloproliferative neoplasms.
Collapse
|
38
|
Li Z, Weng H, Su R, Weng X, Zuo Z, Li C, Huang H, Nachtergaele S, Dong L, Hu C, Qin X, Tang L, Wang Y, Hong GM, Huang H, Wang X, Chen P, Gurbuxani S, Arnovitz S, Li Y, Li S, Strong J, Neilly MB, Larson RA, Jiang X, Zhang P, Jin J, He C, Chen J. FTO Plays an Oncogenic Role in Acute Myeloid Leukemia as a N 6-Methyladenosine RNA Demethylase. Cancer Cell 2017; 31:127-141. [PMID: 28017614 PMCID: PMC5234852 DOI: 10.1016/j.ccell.2016.11.017] [Citation(s) in RCA: 1027] [Impact Index Per Article: 146.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 06/02/2016] [Accepted: 11/21/2016] [Indexed: 12/30/2022]
Abstract
N6-Methyladenosine (m6A) represents the most prevalent internal modification in mammalian mRNAs. Despite its functional importance in various fundamental bioprocesses, the studies of m6A in cancer have been limited. Here we show that FTO, as an m6A demethylase, plays a critical oncogenic role in acute myeloid leukemia (AML). FTO is highly expressed in AMLs with t(11q23)/MLL rearrangements, t(15;17)/PML-RARA, FLT3-ITD, and/or NPM1 mutations. FTO enhances leukemic oncogene-mediated cell transformation and leukemogenesis, and inhibits all-trans-retinoic acid (ATRA)-induced AML cell differentiation, through regulating expression of targets such as ASB2 and RARA by reducing m6A levels in these mRNA transcripts. Collectively, our study demonstrates the functional importance of the m6A methylation and the corresponding proteins in cancer, and provides profound insights into leukemogenesis and drug response.
Collapse
Affiliation(s)
- Zejuan Li
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA; Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA
| | - Hengyou Weng
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA; Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA
| | - Rui Su
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA
| | - Xiaocheng Weng
- Departments of Chemistry, Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, Chicago, IL 60637, USA; College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Hubei, Wuhan 430072, PR China
| | - Zhixiang Zuo
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA; Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Chenying Li
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA; Key Laboratory of Hematopoietic Malignancies, Department of Hematology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Huilin Huang
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA
| | - Sigrid Nachtergaele
- Departments of Chemistry, Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, Chicago, IL 60637, USA
| | - Lei Dong
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA
| | - Chao Hu
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA; Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA; Key Laboratory of Hematopoietic Malignancies, Department of Hematology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Xi Qin
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA
| | - Lichun Tang
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yungui Wang
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA; Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA; Key Laboratory of Hematopoietic Malignancies, Department of Hematology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Gia-Ming Hong
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Hao Huang
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Xiao Wang
- Departments of Chemistry, Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, Chicago, IL 60637, USA
| | - Ping Chen
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Sandeep Gurbuxani
- Department of Pathology, University of Chicago, Chicago, IL 60637, USA
| | - Stephen Arnovitz
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Yuanyuan Li
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Shenglai Li
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Jennifer Strong
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA
| | - Mary Beth Neilly
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Richard A Larson
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Xi Jiang
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA; Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA
| | - Pumin Zhang
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jie Jin
- Key Laboratory of Hematopoietic Malignancies, Department of Hematology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Chuan He
- Departments of Chemistry, Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, Chicago, IL 60637, USA.
| | - Jianjun Chen
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA; Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA.
| |
Collapse
|
39
|
Yap KL, Furtado LV, Kiyotani K, Curran E, Stock W, McNeer JL, Kadri S, Segal JP, Nakamura Y, Le Beau MM, Gurbuxani S, Raca G. Diagnostic evaluation of RNA sequencing for the detection of genetic abnormalities associated with Ph-like acute lymphoblastic leukemia (ALL). Leuk Lymphoma 2016; 58:950-958. [PMID: 27855558 DOI: 10.1080/10428194.2016.1219902] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Philadelphia (Ph)-like acute lymphoblastic leukemia (ALL) is a molecular subtype of high-risk B-cell ALL characterized by formation of abnormal gene fusions involving tyrosine kinase (TK) and cytokine receptor genes and activation of TK signaling. Because of the diversity of associated genetic changes, the detection of Ph-like ALL cases currently requires multiple cytogenetic and molecular assays; thus, our goal was to develop a consolidated workflow for detecting genetic abnormalities in Ph-like ALL. We found that total and targeted RNA sequencing (RNAseq)-based approach allowed the detection of abnormal fusion transcripts (EBF1-PDGFRB, P2RY8-CRLF2, RCSD1-ABL1, and RCSD1-ABL2). The bioinformatics algorithm accurately detected the fusion transcripts without prior input about possible events. Additionally, we showed that RNAseq analysis enabled evaluation for disease-associated sequence variants in expressed transcripts. While total RNAseq can be a second tier approach allowing discovery of novel genetic alterations, the targeted RNAseq workflow offers a clinically applicable method for the detection of fusion transcripts.
Collapse
Affiliation(s)
- Kai Lee Yap
- a Department of Medicine, Section of Hematology/Oncology , The University of Chicago , Chicago , IL , USA
| | - Larissa V Furtado
- b Department of Pathology , The University of Chicago , Chicago , IL , USA
| | - Kazuma Kiyotani
- a Department of Medicine, Section of Hematology/Oncology , The University of Chicago , Chicago , IL , USA
| | - Emily Curran
- a Department of Medicine, Section of Hematology/Oncology , The University of Chicago , Chicago , IL , USA
| | - Wendy Stock
- a Department of Medicine, Section of Hematology/Oncology , The University of Chicago , Chicago , IL , USA
| | - Jennifer L McNeer
- c Department of Pediatrics, Section of Pediatric Hematology/Oncology , The University of Chicago , Chicago , IL , USA
| | - Sabah Kadri
- b Department of Pathology , The University of Chicago , Chicago , IL , USA
| | - Jeremy P Segal
- b Department of Pathology , The University of Chicago , Chicago , IL , USA
| | - Yusuke Nakamura
- a Department of Medicine, Section of Hematology/Oncology , The University of Chicago , Chicago , IL , USA
| | - Michelle M Le Beau
- a Department of Medicine, Section of Hematology/Oncology , The University of Chicago , Chicago , IL , USA
| | - Sandeep Gurbuxani
- b Department of Pathology , The University of Chicago , Chicago , IL , USA
| | - Gordana Raca
- a Department of Medicine, Section of Hematology/Oncology , The University of Chicago , Chicago , IL , USA
| |
Collapse
|
40
|
Abstract
Two of the most common myeloid malignancies, myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML), are associated with exceedingly low survival rates despite recent therapeutic advances. While their etiology is not completely understood, evidence suggests that certain chromosomal abnormalities contribute to MDS and AML progression. Among the most frequent chromosomal abnormalities in these disorders are alterations of chromosome 7: either complete loss of one copy of chromosome 7 (-7) or partial deletion of 7q (del(7q)), both of which increase the risk of progression from MDS to AML and are associated with chemoresistance. Notably, 7q36.1, a critical minimally deleted region in 7q, includes the gene encoding the histone methyltransferase mixed-lineage leukemia 3 (MLL3), which is also mutated in a small percentage of AML patients. However, the mechanisms by which MLL3 loss contributes to malignancy are unknown. Using an engineered mouse model expressing a catalytically inactive form of Mll3, we found a significant shift in hematopoiesis toward the granulocyte/macrophage lineage, correlating with myeloid infiltration and enlargement of secondary lymphoid organs. Therefore, we propose that MLL3 loss in patients may contribute to the progression of MDS and AML by promoting myelopoiesis.
Collapse
Affiliation(s)
- Kelly M. Arcipowski
- Division of Hematology/Oncology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Marinka Bulic
- Division of Hematology/Oncology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Sandeep Gurbuxani
- Department of Clinical Hematology/Hematopathology, University of Chicago Medical Center, Chicago, Illinois, United States of America
| | - Jonathan D. Licht
- Division of Hematology/Oncology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
- The University of Florida Health Cancer Center, Gainesville, Florida, United States of America
| |
Collapse
|
41
|
Jiang X, Bugno J, Hu C, Yang Y, Herold T, Qi J, Chen P, Gurbuxani S, Arnovitz S, Strong J, Ferchen K, Ulrich B, Weng H, Wang Y, Huang H, Li S, Neilly MB, Larson RA, Le Beau MM, Bohlander SK, Jin J, Li Z, Bradner JE, Hong S, Chen J. Eradication of Acute Myeloid Leukemia with FLT3 Ligand-Targeted miR-150 Nanoparticles. Cancer Res 2016; 76:4470-80. [PMID: 27280396 DOI: 10.1158/0008-5472.can-15-2949] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 05/23/2016] [Indexed: 01/05/2023]
Abstract
Acute myeloid leukemia (AML) is a common and fatal form of hematopoietic malignancy. Overexpression and/or mutations of FLT3 have been shown to occur in the majority of cases of AML. Our analysis of a large-scale AML patient cohort (N = 562) indicates that FLT3 is particularly highly expressed in some subtypes of AML, such as AML with t(11q23)/MLL-rearrangements or FLT3-ITD. Such AML subtypes are known to be associated with unfavorable prognosis. To treat FLT3-overexpressing AML, we developed a novel targeted nanoparticle system: FLT3 ligand (FLT3L)-conjugated G7 poly(amidoamine) (PAMAM) nanosized dendriplex encapsulating miR-150, a pivotal tumor suppressor and negative regulator of FLT3 We show that the FLT3L-guided miR-150 nanoparticles selectively and efficiently target FLT3-overexpressing AML cells and significantly inhibit viability/growth and promote apoptosis of the AML cells. Our proof-of-concept animal model studies demonstrate that the FLT3L-guided miR-150 nanoparticles tend to concentrate in bone marrow, and significantly inhibit progression of FLT3-overexpressing AML in vivo, while exhibiting no obvious side effects on normal hematopoiesis. Collectively, we have developed a novel targeted therapeutic strategy, using FLT3L-guided miR-150-based nanoparticles, to treat FLT3-overexpressing AML with high efficacy and minimal side effects. Cancer Res; 76(15); 4470-80. ©2016 AACR.
Collapse
Affiliation(s)
- Xi Jiang
- Department of Cancer Biology, University of Cincinnati, Cincinnati, Ohio. Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois.
| | - Jason Bugno
- Department of Biopharmaceutical Sciences College of Pharmacy, The University of Illinois, Chicago, Illinois
| | - Chao Hu
- Department of Cancer Biology, University of Cincinnati, Cincinnati, Ohio. Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois. Department of Hematology, The First Affiliated Hospital and Key Lab of Hematopoietic Malignancy, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yang Yang
- Department of Biopharmaceutical Sciences College of Pharmacy, The University of Illinois, Chicago, Illinois
| | - Tobias Herold
- Department of Internal Medicine 3, University Hospital Grosshadern, Ludwig-Maximilians-Universität, Munich, Germany
| | - Jun Qi
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Ping Chen
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | | | - Stephen Arnovitz
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Jennifer Strong
- Department of Cancer Biology, University of Cincinnati, Cincinnati, Ohio
| | - Kyle Ferchen
- Department of Cancer Biology, University of Cincinnati, Cincinnati, Ohio
| | - Bryan Ulrich
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Hengyou Weng
- Department of Cancer Biology, University of Cincinnati, Cincinnati, Ohio. Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Yungui Wang
- Department of Cancer Biology, University of Cincinnati, Cincinnati, Ohio. Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois. Department of Hematology, The First Affiliated Hospital and Key Lab of Hematopoietic Malignancy, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hao Huang
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Shenglai Li
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Mary Beth Neilly
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Richard A Larson
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Michelle M Le Beau
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Stefan K Bohlander
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
| | - Jie Jin
- Department of Hematology, The First Affiliated Hospital and Key Lab of Hematopoietic Malignancy, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zejuan Li
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - James E Bradner
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Seungpyo Hong
- Department of Biopharmaceutical Sciences College of Pharmacy, The University of Illinois, Chicago, Illinois. Division of Integrated Science & Engineering, Underwood International College, Yonsei University, Incheon, Korea.
| | - Jianjun Chen
- Department of Cancer Biology, University of Cincinnati, Cincinnati, Ohio. Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois.
| |
Collapse
|
42
|
Jiang X, Hu C, Arnovitz S, Bugno J, Yu M, Zuo Z, Chen P, Huang H, Ulrich B, Gurbuxani S, Weng H, Strong J, Wang Y, Li Y, Salat J, Li S, Elkahloun AG, Yang Y, Neilly MB, Larson RA, Le Beau MM, Herold T, Bohlander SK, Liu PP, Zhang J, Li Z, He C, Jin J, Hong S, Chen J. miR-22 has a potent anti-tumour role with therapeutic potential in acute myeloid leukaemia. Nat Commun 2016; 7:11452. [PMID: 27116251 PMCID: PMC5477496 DOI: 10.1038/ncomms11452] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 03/23/2016] [Indexed: 01/07/2023] Open
Abstract
MicroRNAs are subject to precise regulation and have key roles in tumorigenesis. In contrast to the oncogenic role of miR-22 reported in myelodysplastic syndrome (MDS) and breast cancer, here we show that miR-22 is an essential anti-tumour gatekeeper in de novo acute myeloid leukaemia (AML) where it is significantly downregulated. Forced expression of miR-22 significantly suppresses leukaemic cell viability and growth in vitro, and substantially inhibits leukaemia development and maintenance in vivo. Mechanistically, miR-22 targets multiple oncogenes, including CRTC1, FLT3 and MYCBP, and thus represses the CREB and MYC pathways. The downregulation of miR-22 in AML is caused by TET1/GFI1/EZH2/SIN3A-mediated epigenetic repression and/or DNA copy-number loss. Furthermore, nanoparticles carrying miR-22 oligos significantly inhibit leukaemia progression in vivo. Together, our study uncovers a TET1/GFI1/EZH2/SIN3A/miR-22/CREB-MYC signalling circuit and thereby provides insights into epigenetic/genetic mechanisms underlying the pathogenesis of AML, and also highlights the clinical potential of miR-22-based AML therapy.
Collapse
Affiliation(s)
- Xi Jiang
- Department of Cancer Biology, University of Cincinnati, Cincinnati, Ohio 45219, USA.,Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Chao Hu
- Department of Cancer Biology, University of Cincinnati, Cincinnati, Ohio 45219, USA.,Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA.,Department of Hematology, The First Affiliated Hospital Zhejiang University, Hangzhou, 310003 Zhejiang, China
| | - Stephen Arnovitz
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Jason Bugno
- Department of Biopharmaceutical Sciences College of Pharmacy, The University of Illinois, Chicago, Illinois 60612, USA
| | - Miao Yu
- Department of Chemistry and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Zhixiang Zuo
- Department of Cancer Biology, University of Cincinnati, Cincinnati, Ohio 45219, USA.,Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA.,State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 510060 Guangzhou, China
| | - Ping Chen
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Hao Huang
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Bryan Ulrich
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Sandeep Gurbuxani
- Department of Pathology, University of Chicago, Chicago, Illinois 60637, USA
| | - Hengyou Weng
- Department of Cancer Biology, University of Cincinnati, Cincinnati, Ohio 45219, USA.,Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Jennifer Strong
- Department of Cancer Biology, University of Cincinnati, Cincinnati, Ohio 45219, USA
| | - Yungui Wang
- Department of Cancer Biology, University of Cincinnati, Cincinnati, Ohio 45219, USA.,Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA.,Department of Hematology, The First Affiliated Hospital Zhejiang University, Hangzhou, 310003 Zhejiang, China
| | - Yuanyuan Li
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Justin Salat
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Shenglai Li
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Abdel G Elkahloun
- Division of Intramural Research, National Human Genome Research Institute, NIH, Bethesda, Maryland 20892, USA
| | - Yang Yang
- Department of Biopharmaceutical Sciences College of Pharmacy, The University of Illinois, Chicago, Illinois 60612, USA
| | - Mary Beth Neilly
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Richard A Larson
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Michelle M Le Beau
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Tobias Herold
- Department of Internal Medicine 3, University Hospital Grosshadern, Ludwig-Maximilians-Universität, 81377 Munich, Germany
| | - Stefan K Bohlander
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland 1142, New Zealand
| | - Paul P Liu
- Division of Intramural Research, National Human Genome Research Institute, NIH, Bethesda, Maryland 20892, USA
| | - Jiwang Zhang
- Oncology Institute, Cardinal Bernardin Cancer Center, Loyola University Medical Center, Maywood, Illinois 60153, USA
| | - Zejuan Li
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA.,Department of Human Genetics, University of Chicago, Chicago, Illinois 60637, USA
| | - Chuan He
- Department of Chemistry and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Jie Jin
- Department of Hematology, The First Affiliated Hospital Zhejiang University, Hangzhou, 310003 Zhejiang, China
| | - Seungpyo Hong
- Department of Biopharmaceutical Sciences College of Pharmacy, The University of Illinois, Chicago, Illinois 60612, USA.,Integrated Science and Engineering Division, Underwood International College, Yonsei University, Incheon 406-840, Korea
| | - Jianjun Chen
- Department of Cancer Biology, University of Cincinnati, Cincinnati, Ohio 45219, USA.,Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| |
Collapse
|
43
|
Huang H, Jiang X, Wang J, Li Y, Song CX, Chen P, Li S, Gurbuxani S, Arnovitz S, Wang Y, Weng H, Neilly MB, He C, Li Z, Chen J. Identification of MLL-fusion/MYC⊣miR-26⊣TET1 signaling circuit in MLL-rearranged leukemia. Cancer Lett 2016; 372:157-65. [PMID: 26791235 DOI: 10.1016/j.canlet.2015.12.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 12/21/2015] [Accepted: 12/25/2015] [Indexed: 01/07/2023]
Abstract
Expression of functionally important genes is often tightly regulated at both transcriptional and post-transcriptional levels. We reported previously that TET1, the founding member of the TET methylcytosine dioxygenase family, plays an essential oncogenic role in MLL-rearranged acute myeloid leukemia (AML), where it is overexpressed owing to MLL-fusion-mediated direct up-regulation at the transcriptional level. Here we show that the overexpression of TET1 in MLL-rearranged AML also relies on the down-regulation of miR-26a, which directly negatively regulates TET1 expression at the post-transcriptional level. Through inhibiting expression of TET1 and its downstream targets, forced expression of miR-26a significantly suppresses the growth/viability of human MLL-rearranged AML cells, and substantially inhibits MLL-fusion-mediated mouse hematopoietic cell transformation and leukemogenesis. Moreover, c-Myc, an oncogenic transcription factor up-regulated in MLL-rearranged AML, mediates the suppression of miR-26a expression at the transcriptional level. Collectively, our data reveal a previously unappreciated signaling pathway involving the MLL-fusion/MYC⊣miR-26a⊣TET1 signaling circuit, in which miR-26a functions as an essential tumor-suppressor mediator and its transcriptional repression is required for the overexpression and oncogenic function of TET1 in MLL-rearranged AML. Thus, restoration of miR-26a expression/function holds therapeutic potential to treat MLL-rearranged AML.
Collapse
Affiliation(s)
- Hao Huang
- Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Xi Jiang
- Department of Medicine, University of Chicago, Chicago, IL 60637, USA; Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA
| | - Jinhua Wang
- Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Yuanyuan Li
- Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Chun-Xiao Song
- Department of Chemistry and Institute for Biophysical Dynamics, University of Chicago, Chicago, IL 60637, USA
| | - Ping Chen
- Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Shenglai Li
- Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Sandeep Gurbuxani
- Department of Pathology, University of Chicago, Chicago, IL 60637, USA
| | - Stephen Arnovitz
- Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Yungui Wang
- Department of Medicine, University of Chicago, Chicago, IL 60637, USA; Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA
| | - Hengyou Weng
- Department of Medicine, University of Chicago, Chicago, IL 60637, USA; Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA
| | - Mary Beth Neilly
- Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Chuan He
- Department of Chemistry and Institute for Biophysical Dynamics, University of Chicago, Chicago, IL 60637, USA
| | - Zejuan Li
- Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Jianjun Chen
- Department of Medicine, University of Chicago, Chicago, IL 60637, USA; Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA.
| |
Collapse
|
44
|
Li Z, Chen P, Su R, Hu C, Li Y, Elkahloun AG, Zuo Z, Gurbuxani S, Arnovitz S, Weng H, Wang Y, Li S, Huang H, Neilly MB, Wang GG, Jiang X, Liu PP, Jin J, Chen J. PBX3 and MEIS1 Cooperate in Hematopoietic Cells to Drive Acute Myeloid Leukemias Characterized by a Core Transcriptome of the MLL-Rearranged Disease. Cancer Res 2016; 76:619-29. [PMID: 26747896 DOI: 10.1158/0008-5472.can-15-1566] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 10/30/2015] [Indexed: 12/27/2022]
Abstract
Overexpression of HOXA/MEIS1/PBX3 homeobox genes is the hallmark of mixed lineage leukemia (MLL)-rearranged acute myeloid leukemia (AML). HOXA9 and MEIS1 are considered to be the most critical targets of MLL fusions and their coexpression rapidly induces AML. MEIS1 and PBX3 are not individually able to transform cells and were therefore hypothesized to function as cofactors of HOXA9. However, in this study, we demonstrate that coexpression of PBX3 and MEIS1 (PBX3/MEIS1), without ectopic expression of a HOX gene, is sufficient for transformation of normal mouse hematopoietic stem/progenitor cells in vitro. Moreover, PBX3/MEIS1 overexpression also caused AML in vivo, with a leukemic latency similar to that caused by forced expression of MLL-AF9, the most common form of MLL fusions. Furthermore, gene expression profiling of hematopoietic cells demonstrated that PBX3/MEIS1 overexpression, but not HOXA9/MEIS1, HOXA9/PBX3, or HOXA9 overexpression, recapitulated the MLL-fusion-mediated core transcriptome, particularly upregulation of the endogenous Hoxa genes. Disruption of the binding between MEIS1 and PBX3 diminished PBX3/MEIS1-mediated cell transformation and HOX gene upregulation. Collectively, our studies strongly implicate the PBX3/MEIS1 interaction as a driver of cell transformation and leukemogenesis, and suggest that this axis may play a critical role in the regulation of the core transcriptional programs activated in MLL-rearranged and HOX-overexpressing AML. Therefore, targeting the MEIS1/PBX3 interaction may represent a promising therapeutic strategy to treat these AML subtypes.
Collapse
Affiliation(s)
- Zejuan Li
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois.
| | - Ping Chen
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Rui Su
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Chao Hu
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois. Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, Ohio. Institute of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, Zhejiang, China
| | - Yuanyuan Li
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Abdel G Elkahloun
- Genetics and Molecular Biology Branch, National Human Genome Research Institute, NIH, Bethesda, Maryland
| | - Zhixiang Zuo
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois. Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | | | - Stephen Arnovitz
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Hengyou Weng
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois. Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Yungui Wang
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois. Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, Ohio. Institute of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, Zhejiang, China
| | - Shenglai Li
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Hao Huang
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Mary Beth Neilly
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Gang Greg Wang
- UNC Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina
| | - Xi Jiang
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois. Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Paul P Liu
- Genetics and Molecular Biology Branch, National Human Genome Research Institute, NIH, Bethesda, Maryland
| | - Jie Jin
- Institute of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, Zhejiang, China
| | - Jianjun Chen
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, Illinois. Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, Ohio.
| |
Collapse
|
45
|
Jakubowiak A, Griffith K, Jasielec J, Rosenbaum C, Berdeja J, Vij R, Raje N, Reece D, Rosebeck S, Gurbuxani S, Dytfeld D, Zimmerman T. Carfilzomib (CFZ, Kyprolis®), lenalidomide (LEN, Revlimid®), and dexamethasone (DEX) (KRd) combined with autologous stem cell transplant (ASCT) shows improved efficacy compared with KRd without ASCT in newly diagnosed multiple myeloma (NDMM). Clinical Lymphoma Myeloma and Leukemia 2015. [DOI: 10.1016/j.clml.2015.07.173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
46
|
Zimmerman TM, Griffith KA, Jasielec J, Rosenbaum CA, McDonnell K, Waite-Marin J, Berdeja JG, Raje NS, Reece DE, Vij R, Alonge M, Rosebeck S, Gurbuxani S, Faham M, Kong KA, Levy J, Jakubowiak AJ. Phase II MMRC trial of extended treatment with carfilzomib (CFZ), lenalidomide (LEN), and dexamethasone (DEX) plus autologous stem cell transplantation (ASCT) in newly diagnosed multiple myeloma (NDMM). J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.15_suppl.8510] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Ravi Vij
- Washington University in St Louis School of Medicine, Saint Louis, MO
| | | | | | | | | | | | - Joan Levy
- Multiple Myeloma Research Consortium, Norwalk, CT
| | | |
Collapse
|
47
|
Xu Y, Evaristo C, Alegre ML, Gurbuxani S, Kee BL. Analysis of GzmbCre as a Model System for Gene Deletion in the Natural Killer Cell Lineage. PLoS One 2015; 10:e0125211. [PMID: 25923440 PMCID: PMC4414598 DOI: 10.1371/journal.pone.0125211] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Accepted: 03/23/2015] [Indexed: 12/15/2022] Open
Abstract
The analysis of gene function in mature and activated natural killer cells has been hampered by the lack of model systems for Cre-mediated recombination in these cells. Here we have investigated the utility of GzmbCre for recombination of loxp sequences in these cells predicated on the observation that Gzmb mRNA is highly expressed in mature and activated natural killer cells. Using two different reporter strains we determined that gene function could be investigated in mature natural killer cells after GzmbCre mediated recombination in vitro in conditions that lead to natural killer cell activation such as in the cytokine combination of interleukin 2 and interleukin 12. We demonstrated the utility of this model by creating GzmbCre;Rosa26IKKbca mice in which Cre-mediated recombination resulted in expression of constitutively active IKKβ, which results in activation of the NFκB transcription factor. In vivo and in vitro activation of IKKβ in natural killer cells revealed that constitutive activation of this pathway leads to natural killer cell hyper-activation and altered morphology. As a caveat to the use of GzmbCre we found that this transgene can lead to recombination in all hematopoietic cells the extent of which varies with the particular loxp flanked allele under investigation. We conclude that GzmbCre can be used under some conditions to investigate gene function in mature and activated natural killer cells.
Collapse
Affiliation(s)
- Yiying Xu
- Committee on Molecular Pathogenesis and Molecular Medicine, University of Chicago, Chicago, Illinois, United States of America
| | - Cesar Evaristo
- Committee on Immunology, University of Chicago, Chicago, Illinois, United States of America
- Department of Medicine, Section of Rhuematology, University of Chicago, Chicago, Illinois, United States of America
| | - Maria-Luisa Alegre
- Committee on Molecular Pathogenesis and Molecular Medicine, University of Chicago, Chicago, Illinois, United States of America
- Committee on Immunology, University of Chicago, Chicago, Illinois, United States of America
- Department of Medicine, Section of Rhuematology, University of Chicago, Chicago, Illinois, United States of America
| | - Sandeep Gurbuxani
- Department of Pathology, University of Chicago, Chicago, Illinois, United States of America
| | - Barbara L. Kee
- Committee on Molecular Pathogenesis and Molecular Medicine, University of Chicago, Chicago, Illinois, United States of America
- Committee on Immunology, University of Chicago, Chicago, Illinois, United States of America
- Committee on Cancer Biology, University of Chicago, Chicago, Illinois, United States of America
- Department of Pathology, University of Chicago, Chicago, Illinois, United States of America
- * E-mail:
| |
Collapse
|
48
|
Raca G, Gurbuxani S, Zhang Z, Li Z, Sukhanova M, McNeer J, Stock W. RCSD1-ABL2 fusion resulting from a complex chromosomal rearrangement in high-risk B-cell acute lymphoblastic leukemia. Leuk Lymphoma 2014; 56:1145-7. [PMID: 25098428 DOI: 10.3109/10428194.2014.951851] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Gordana Raca
- Department of Medicine, The University of Chicago , Chicago, IL , USA
| | | | | | | | | | | | | |
Collapse
|
49
|
Marquez R, Hantel A, Lorenz R, Neistadt B, Wong J, Churpek JE, Mardini NA, Shaukat I, Gurbuxani S, Miller JL, Godley LA. A new family with a germline ANKRD26 mutation and predisposition to myeloid malignancies. Leuk Lymphoma 2014; 55:2945-6. [PMID: 24628296 DOI: 10.3109/10428194.2014.903476] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Rafael Marquez
- Department of Medicine, The University of Chicago , Chicago, IL , USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Mirza MK, McGregor S, Anastasi J, Vardiman JW, Hyjek E, Gurbuxani S. Nuclear FOXO3a Expression is A Frequent Occurrence in T-cell lymphomas. Am J Clin Pathol 2013. [DOI: 10.1093/ajcp/140.suppl1.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|