CD97 is a critical regulator of acute myeloid leukemia stem cell function

Despite significant efforts to improve therapies for acute myeloid leukemia (AML), clinical outcomes remain poor. Understanding the mechanisms that regulate the development and maintenance of leukemic stem cells (LSCs) is important to reveal new therapeutic opportunities. We have identified CD97, a member of the adhesion class of G protein–coupled receptors (GPCRs), as a frequently up-regulated antigen on AML blasts that is a critical regulator of blast function. High levels of CD97 correlate with poor prognosis, and silencing of CD97 reduces disease aggressiveness in vivo. These phenotypes are due to CD97’s ability to promote proliferation, survival, and the maintenance of the undifferentiated state in leukemic blasts. Collectively, our data credential CD97 as a promising therapeutic target on LSCs in AML.
Source: The Journal of Experimental Medicine - Category: Internal Medicine Authors: Tags: Leukemia & Lymphoma, Stem Cells & Regeneration, Hematopoiesis Articles Source Type: research

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CONCLUSION: All tested biosimilars demonstrated similar effectiveness and safety profiles in patients with hematological tumors undergoing PBSC mobilization; therefore, they can be used interchangeably. PMID: 31663634 [PubMed - as supplied by publisher]
Source: Clinical Lymphoma and Myeloma - Category: Cancer & Oncology Authors: Tags: J Clin Apher Source Type: research
AbstractPurposeInvasive pulmonary aspergillosis (IPA) is a dreadful event in patients with hematological malignancies (HM). Recent advances have standardized diagnostic, prophylactic and curative therapeutic strategies. We sought to assess whether these advances actually translate into improved survival in critically ill patients with acute respiratory failure and IPA.MethodsThis was a retrospective, multicenter study. Adult patients with HM, IPA, admitted to the ICU for acute respiratory failure over a 20-year period (January 1998 –December 2017) were included. A cox regression model was used to identify variables i...
Source: Intensive Care Medicine - Category: Intensive Care Source Type: research
ConclusionsFLT3 mutation was not common in Chinese ALL patients. Age of onset, platelet counts and transplant status rather than FLT3 mutations were independent prognostic variables for ALL cases on OS in our cohort. In spite of small sample size, ETP-ALL may indicate a comparable higher FLT3-mutant rate. Since ETP-ALL has been identified as high-risk subgroup, these data warrant clinical studies with the implementation of FLT3 inhibitors in addition to early allogeneic hematopoietic stem cell transplantation for FLT3 mutant ETP-ALL.
Source: Clinical Lymphoma Myeloma and Leukemia - Category: Cancer & Oncology Source Type: research
Publication date: Available online 26 August 2019Source: Clinical Lymphoma Myeloma and LeukemiaAuthor(s): Hyunkyung Park, Ja Min Byun, Youngil Koh, Sung-Soo Yoon, Hyejoo Park, Jayoun Lee, Sang-Jin Shin, Jeonghwan YoukAbstractBackgroundThe optimal the conditioning regimens for allogeneic hematopoietic stem-cell transplantation, especially for East Asian patients, remains unknown.Patients and MethodsWe collected and analyzed clinical and survival data of 4255 patients from the Korean National Health Insurance Claims Database.ResultsBetween 1562 myeloablative conditioning and 2693 nonmyeloablative conditioning groups, the ove...
Source: Clinical Lymphoma Myeloma and Leukemia - Category: Cancer & Oncology Source Type: research
Publication date: Available online 26 August 2019Source: Clinical Lymphoma Myeloma and LeukemiaAuthor(s): Rafiye Ciftciler, Haluk Demiroglu, Ibrahim Celalettin Haznedaroglu, Nilgun Sayınalp, Salih Aksu, Osman Ozcebe, Hakan Goker, Muruvvet Seda Aydın, Yahya BuyukasıkAbstractBackgroundThe majority of patients with acute myeloid leukemia (AML) receive intensive induction chemotherapy for obtaining a complete remission (CR). Despite consolidation chemotherapy and advances in allogeneic hematopoietic stem cell transplantation, most of these patients finally relapse and die from AML. The aim of this study is to determine the ...
Source: Clinical Lymphoma Myeloma and Leukemia - Category: Cancer & Oncology Source Type: research
In conclusion, these recent studies strongly support CD123 as an important therapeutic target for the treatment of BPDCN, while a possible in the treatment of AML and other hematological malignancies will have to be evaluated by in the ongoing clinical studies.
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Review Source Type: research
Publication date: Available online 26 August 2019Source: Clinical Lymphoma Myeloma and LeukemiaAuthor(s): Hyunkyung Park, Ja Min Byun, Youngil Koh, Sung-Soo Yoon, Hyejoo Park, Jayoun Lee, Sang-Jin Shin, Jeonghwan YoukAbstractBackground/AimThe optimal the conditioning regimens for allogeneic hematopoietic stem cell transplantation (HSCT), especially for East Asian patients, remains unknown.Patients and MethodsWe collected and analyzed clinical and survival data of 4,255 patients from the Korean National Health Insurance Claims Database.ResultsBetween 1,562 myeloablative conditioning (MAC) and 2,693 non-myeloablative conditi...
Source: Clinical Lymphoma Myeloma and Leukemia - Category: Cancer & Oncology Source Type: research
Publication date: Available online 26 August 2019Source: Clinical Lymphoma Myeloma and LeukemiaAuthor(s): Rafiye Ciftciler, Haluk Demiroglu, Ibrahim Celalettin Haznedaroglu, Nilgun Sayınalp, Salih Aksu, Osman Ozcebe, Hakan Goker, Muruvvet Seda Aydın, Yahya BuyukasıkAbstractBackground and AimThe majority of patients with acute myeloid leukemia (AML) receive intensive induction chemotherapy for obtaining a complete remission (CR). Despite consolidation chemotherapy and advances in allogeneic hematopoietic stem cell transplantation (alloHSCT), most of these patients finally relapse and die from AML. The aim of this study i...
Source: Clinical Lymphoma Myeloma and Leukemia - Category: Cancer & Oncology Source Type: research
Abstract Mutation and translocation of fibroblast growth factor receptors often lead to aberrant signaling and cancer. This work focuses on the t(8;22)(p11;q11) chromosomal translocation which creates the BCR-FGFR1 fusion protein. This fusion occurs in stem cell leukemia/lymphoma, which can progress to atypical chronic myeloid leukemia, acute myeloid leukemia, or B-Cell lymphoma. This work focuses on biochemical characterization of BCR-FGFR1 and identification of novel therapeutic targets. The tyrosine kinase activity of FGFR1 is required for biological activity as shown using transformation assays, IL-3 independe...
Source: Haematologica - Category: Hematology Authors: Tags: Haematologica Source Type: research
ConclusionAllograft should be considered as a rescue therapy in ICU for patients with aplasia, during septic shock with multi-organ failure, however close multidisciplinary discussion is required between intensivists and onco-hematologists.
Source: Journal of Critical Care - Category: Gastroenterology Source Type: research
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