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Selheim F, Aasebø E, Reikvam H, Bruserud Ø, Hernandez-Valladares M. Monocytic Differentiation of Human Acute Myeloid Leukemia Cells: A Proteomic and Phosphoproteomic Comparison of FAB-M4/M5 Patients with and without Nucleophosmin 1 Mutations. Int J Mol Sci 2024; 25:5080. [PMID: 38791118 PMCID: PMC11121526 DOI: 10.3390/ijms25105080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 04/14/2024] [Accepted: 04/24/2024] [Indexed: 05/26/2024] Open
Abstract
Even though morphological signs of differentiation have a minimal impact on survival after intensive cytotoxic therapy for acute myeloid leukemia (AML), monocytic AML cell differentiation (i.e., classified as French/American/British (FAB) subtypes M4/M5) is associated with a different responsiveness both to Bcl-2 inhibition (decreased responsiveness) and possibly also bromodomain inhibition (increased responsiveness). FAB-M4/M5 patients are heterogeneous with regard to genetic abnormalities, even though monocytic differentiation is common for patients with Nucleophosmin 1 (NPM1) insertions/mutations; to further study the heterogeneity of FAB-M4/M5 patients we did a proteomic and phosphoproteomic comparison of FAB-M4/M5 patients with (n = 13) and without (n = 12) NPM1 mutations. The proteomic profile of NPM1-mutated FAB-M4/M5 patients was characterized by increased levels of proteins involved in the regulation of endocytosis/vesicle trafficking/organellar communication. In contrast, AML cells without NPM1 mutations were characterized by increased levels of several proteins involved in the regulation of cytoplasmic translation, including a large number of ribosomal proteins. The phosphoproteomic differences between the two groups were less extensive but reflected similar differences. To conclude, even though FAB classification/monocytic differentiation are associated with differences in responsiveness to new targeted therapies (e.g., Bcl-2 inhibition), our results shows that FAB-M4/M5 patients are heterogeneous with regard to important biological characteristics of the leukemic cells.
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Affiliation(s)
- Frode Selheim
- Proteomics Unit of University of Bergen (PROBE), University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway
| | - Elise Aasebø
- Acute Leukemia Research Group, Department of Clinical Science, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway; (E.A.); (H.R.); (Ø.B.)
| | - Håkon Reikvam
- Acute Leukemia Research Group, Department of Clinical Science, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway; (E.A.); (H.R.); (Ø.B.)
- Section for Hematology, Department of Medicine, Haukeland University Hospital, 5009 Bergen, Norway
| | - Øystein Bruserud
- Acute Leukemia Research Group, Department of Clinical Science, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway; (E.A.); (H.R.); (Ø.B.)
- Section for Hematology, Department of Medicine, Haukeland University Hospital, 5009 Bergen, Norway
| | - Maria Hernandez-Valladares
- Proteomics Unit of University of Bergen (PROBE), University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway
- Department of Physical Chemistry, University of Granada, Avenida de la Fuente Nueva S/N, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
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2
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Kobyakova MI, Senotov AS, Krasnov KS, Lomovskaya YV, Odinokova IV, Kolotova AA, Ermakov AM, Zvyagina AI, Fadeeva IS, Fetisova EI, Akatov VS, Fadeev RS. Pro-Inflammatory Activation Suppresses TRAIL-induced Apoptosis of Acute Myeloid Leukemia Cells. BIOCHEMISTRY. BIOKHIMIIA 2024; 89:431-440. [PMID: 38648763 DOI: 10.1134/s0006297924030040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/17/2023] [Accepted: 12/12/2023] [Indexed: 04/25/2024]
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL/Apo2L) is a promising agent for treatment of AML due to its specific apoptosis-inducing effect on tumor cells but not normal cells. However, emergence of resistance to TRAIL in the AML cells limits its potential as an antileukemic agent. Previously, we revealed increase in the resistance of the human AML THP-1 cells to the TRAIL-induced death during their LPS-dependent proinflammatory activation and in the in vitro model of LPS-independent proinflammatory activation - in a long-term high-density cell culture. In this study, we investigated mechanisms of this phenomenon using Western blot analysis, caspase 3 enzymatic activity analysis, quantitative reverse transcription-PCR, and flow cytometry. The results showed that the increased resistance to the TRAIL-induced cell death of AML THP-1 cells during their pro-inflammatory activation is associated with the decrease in the surface expression of the proapoptotic receptors TRAIL-R1/DR4 and TRAIL-R2/DR5, as well as with the increased content of members of the IAPs family - Livin and cIAP2. The results of this article open up new insights into the role of inflammation in formation of the resistance of AML cells to the action of mediators of antitumor immunity, in particular TRAIL.
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Affiliation(s)
- Margarita I Kobyakova
- Institute of Theoretical and Experimental Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia.
- Institute of Clinical and Experimental Lymphology, Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630060, Russia
| | - Anatoly S Senotov
- Institute of Theoretical and Experimental Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - Kirill S Krasnov
- Institute of Theoretical and Experimental Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - Yana V Lomovskaya
- Institute of Theoretical and Experimental Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - Irina V Odinokova
- Institute of Theoretical and Experimental Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - Anastasia A Kolotova
- Institute of Theoretical and Experimental Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - Artem M Ermakov
- Institute of Theoretical and Experimental Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - Alena I Zvyagina
- Institute of Theoretical and Experimental Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - Irina S Fadeeva
- Institute of Theoretical and Experimental Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - Elena I Fetisova
- Institute of Theoretical and Experimental Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - Vladimir S Akatov
- Institute of Theoretical and Experimental Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - Roman S Fadeev
- Institute of Theoretical and Experimental Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
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3
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Lomovskaya YV, Krasnov KS, Kobyakova MI, Kolotova AA, Ermakov AM, Senotov AS, Fadeeva IS, Fetisova EI, Lomovsky AI, Zvyagina AI, Akatov VS, Fadeev RS. Studying Signaling Pathway Activation in TRAIL-Resistant Macrophage-Like Acute Myeloid Leukemia Cells. Acta Naturae 2024; 16:48-58. [PMID: 38698963 PMCID: PMC11062100 DOI: 10.32607/actanaturae.27317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/31/2024] [Indexed: 05/05/2024] Open
Abstract
Acute myeloid leukemia (AML) is a malignant neoplasm characterized by extremely low curability and survival. The inflammatory microenvironment and maturation (differentiation) of AML cells induced by it contribute to the evasion of these cells from effectors of antitumor immunity. One of the key molecular effectors of immune surveillance, the cytokine TRAIL, is considered a promising platform for developing selective anticancer drugs. Previously, under in vitro conditions of the inflammatory microenvironment (a three-dimensional high-density culture of THP-1 AML cells), we demonstrated the emergence of differentiated macrophage-like THP-1ad clones resistant to TRAIL-induced death. In the present study, constitutive activation of proinflammatory signaling pathways, associated transcription factors, and increased expression of the anti-apoptotic BIRC3 gene were observed in TRAIL-resistant macrophage-like THP-1ad AML cells. For the first time, a bioinformatic analysis of the transcriptome revealed the main regulator, the IL1B gene, which triggers proinflammatory activation and induces resistance to TRAIL in THP-1ad macrophage-like cells.
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Affiliation(s)
- Y. V. Lomovskaya
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Moscow region, 142290 Russian Federation
| | - K. S. Krasnov
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Moscow region, 142290 Russian Federation
| | - M. I. Kobyakova
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Moscow region, 142290 Russian Federation
- Institute of Clinical and Experimental Lymphology, Branch of the Institute of Cytology and Genetics SB RAS, Novosibirsk, 630060 Russian Federation
| | - A. A. Kolotova
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Moscow region, 142290 Russian Federation
| | - A. M. Ermakov
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Moscow region, 142290 Russian Federation
| | - A. S. Senotov
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Moscow region, 142290 Russian Federation
| | - I. S. Fadeeva
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Moscow region, 142290 Russian Federation
| | - E. I. Fetisova
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Moscow region, 142290 Russian Federation
| | - A. I. Lomovsky
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Moscow region, 142290 Russian Federation
| | - A. I. Zvyagina
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Moscow region, 142290 Russian Federation
| | - V. S. Akatov
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Moscow region, 142290 Russian Federation
| | - R. S. Fadeev
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Moscow region, 142290 Russian Federation
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Dancik GM, Varisli L, Tolan V, Vlahopoulos S. Aldehyde Dehydrogenase Genes as Prospective Actionable Targets in Acute Myeloid Leukemia. Genes (Basel) 2023; 14:1807. [PMID: 37761947 PMCID: PMC10531322 DOI: 10.3390/genes14091807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/29/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
It has been previously shown that the aldehyde dehydrogenase (ALDH) family member ALDH1A1 has a significant association with acute myeloid leukemia (AML) patient risk group classification and that AML cells lacking ALDH1A1 expression can be readily killed via chemotherapy. In the past, however, a redundancy between the activities of subgroup members of the ALDH family has hampered the search for conclusive evidence to address the role of specific ALDH genes. Here, we describe the bioinformatics evaluation of all nineteen member genes of the ALDH family as prospective actionable targets for the development of methods aimed to improve AML treatment. We implicate ALDH1A1 in the development of recurrent AML, and we show that from the nineteen members of the ALDH family, ALDH1A1 and ALDH2 have the strongest association with AML patient risk group classification. Furthermore, we discover that the sum of the expression values for RNA from the genes, ALDH1A1 and ALDH2, has a stronger association with AML patient risk group classification and survival than either one gene alone does. In conclusion, we identify ALDH1A1 and ALDH2 as prospective actionable targets for the treatment of AML in high-risk patients. Substances that inhibit both enzymatic activities constitute potentially effective pharmaceutics.
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Affiliation(s)
- Garrett M. Dancik
- Department of Computer Science, Eastern Connecticut State University, Willimantic, CT 06226, USA
| | - Lokman Varisli
- Department of Molecular Biology and Genetics, Science Faculty, Dicle University, Diyarbakir 21280, Turkey; (L.V.); (V.T.)
| | - Veysel Tolan
- Department of Molecular Biology and Genetics, Science Faculty, Dicle University, Diyarbakir 21280, Turkey; (L.V.); (V.T.)
| | - Spiros Vlahopoulos
- First Department of Pediatrics, National and Kapodistrian University of Athens, Thivon & Levadeias 8, Goudi, 11527 Athens, Greece
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5
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Huang Z, Zhou J, Jiang Y, Han Y, Wang X, Li F, Jiang S, Yu K, Zhang S. Combined inhibition of XIAP and autophagy induces apoptosis and differentiation in acute myeloid leukaemia. J Cell Mol Med 2023; 27:1682-1696. [PMID: 37154878 PMCID: PMC10273072 DOI: 10.1111/jcmm.17765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 05/10/2023] Open
Abstract
Perturbations in autophagy, apoptosis and differentiation have greatly affected the progression and therapy of acute myeloid leukaemia (AML). The role of X-linked inhibitor of apoptosis (XIAP)-related autophagy remains unclear in AML therapeutics. Here, we found that XIAP was highly expressed and associated with poor overall survival in patients with AML. Furthermore, pharmacologic inhibition of XIAP using birinapant or XIAP knockdown via siRNA impaired the proliferation and clonogenic capacity by inducing autophagy and apoptosis in AML cells. Intriguingly, birinapant-induced cell death was aggravated in combination with ATG5 siRNA or an autophagy inhibitor spautin-1, suggesting that autophagy may be a pro-survival signalling. Spautin-1 further enhanced the ROS level and myeloid differentiation in THP-1 cells treated with birinapant. The mechanism analysis showed that XIAP interacted with MDM2 and p53, and XIAP inhibition notably downregulated p53, substantially increased the AMPKα1 phosphorylation and downregulated the mTOR phosphorylation. Combined treatment using birinapant and chloroquine significantly retarded AML progression in both a subcutaneous xenograft model injected with HEL cells and an orthotopic xenograft model injected intravenously with C1498 cells. Collectively, our data suggested that XIAP inhibition can induce autophagy, apoptosis and differentiation, and combined inhibition of XIAP and autophagy may be a promising therapeutic strategy for AML.
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Affiliation(s)
- Ziyang Huang
- Department of HematologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
- Institute of HematologyWenzhou Medical UniversityWenzhouZhejiangChina
- Wenzhou Key Laboratory of HematologyWenzhouZhejiangChina
| | - Jifan Zhou
- Department of HematologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
- Institute of HematologyWenzhou Medical UniversityWenzhouZhejiangChina
- Wenzhou Key Laboratory of HematologyWenzhouZhejiangChina
| | - Yinyan Jiang
- Department of HematologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
- Institute of HematologyWenzhou Medical UniversityWenzhouZhejiangChina
- Wenzhou Key Laboratory of HematologyWenzhouZhejiangChina
| | - Yixiang Han
- Institute of HematologyWenzhou Medical UniversityWenzhouZhejiangChina
- Wenzhou Key Laboratory of HematologyWenzhouZhejiangChina
- Central LaboratoryThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
| | - Xiaofang Wang
- Department of HematologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
- Institute of HematologyWenzhou Medical UniversityWenzhouZhejiangChina
- Wenzhou Key Laboratory of HematologyWenzhouZhejiangChina
| | - Fanfan Li
- Department of HematologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
- Institute of HematologyWenzhou Medical UniversityWenzhouZhejiangChina
- Wenzhou Key Laboratory of HematologyWenzhouZhejiangChina
| | - Songfu Jiang
- Department of HematologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
- Institute of HematologyWenzhou Medical UniversityWenzhouZhejiangChina
- Wenzhou Key Laboratory of HematologyWenzhouZhejiangChina
| | - Kang Yu
- Department of HematologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
- Institute of HematologyWenzhou Medical UniversityWenzhouZhejiangChina
- Wenzhou Key Laboratory of HematologyWenzhouZhejiangChina
| | - Shenghui Zhang
- Department of HematologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
- Institute of HematologyWenzhou Medical UniversityWenzhouZhejiangChina
- Wenzhou Key Laboratory of HematologyWenzhouZhejiangChina
- Laboratory Animal CenterThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
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6
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Fan S, Wang T, You F, Zhang T, Li Y, Ji C, Han Z, Sheng B, Zhai X, An G, Meng H, Yang L. B7-H3 chimeric antigen receptor-modified T cell shows potential for targeted treatment of acute myeloid leukaemia. Eur J Med Res 2023; 28:129. [PMID: 36941687 PMCID: PMC10026503 DOI: 10.1186/s40001-023-01049-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 02/07/2023] [Indexed: 03/23/2023] Open
Abstract
BACKGROUND AND AIMS Chimeric antigen receptor (CAR)-T cell therapy is a novel type of immunotherapy. However, the use of CAR-T cells to treat acute myeloid leukaemia (AML) has limitations. B7-H3 is expressed in several malignancies, including some types of AML cells. However, its expression in normal tissues is low. Therefore, B7-H3 is ideal for targeted AML therapy. MATERIALS AND METHODS First, we constructed B7-H3 CAR that can target B7-H3, and then constructed B7-H3-CAR-T cells in vitro, which were co-incubated with six AML cell lines expressing different levels of B7-H3, respectively. The toxicity and cytokines were detected by flow cytometry. In vivo, AML model was established in B-NSG mice to study the toxicity of B7-H3-CAR T on AML cells. RESULTS In vitro functional tests showed that B7-H3-CAR-T cells were cytotoxic to B7-H3-positive AML tumor cells and had good scavenging effect on B7-H3-expressing AML cell lines, and the cytokine results were consistent. In vivo, B7-H3-CAR-T cells significantly inhibited tumor cell growth in a mouse model of AML, prolonging mouse survival compared with controls. CONCLUSION B7-H3-CAR-T cells may serve as a novel therapeutic method for the targeted treatment of AML.
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Affiliation(s)
- Shuangshuang Fan
- The Cyrus Tang Hematology Center, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Tian Wang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, China
| | - Fengtao You
- PersonGen BioTherapeutics (Suzhou) Co., Ltd., Suzhou, Jiangsu, China
| | - Tingting Zhang
- The Cyrus Tang Hematology Center, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Yafen Li
- PersonGen BioTherapeutics (Suzhou) Co., Ltd., Suzhou, Jiangsu, China
| | - Cheng Ji
- The Cyrus Tang Hematology Center, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Zhichao Han
- The Cyrus Tang Hematology Center, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Binjie Sheng
- The Cyrus Tang Hematology Center, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Xiaochen Zhai
- The Cyrus Tang Hematology Center, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Gangli An
- The Cyrus Tang Hematology Center, Soochow University, Suzhou, 215123, Jiangsu, China
- Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu, China
| | - Huimin Meng
- The Cyrus Tang Hematology Center, Soochow University, Suzhou, 215123, Jiangsu, China.
- Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu, China.
| | - Lin Yang
- The Cyrus Tang Hematology Center, Soochow University, Suzhou, 215123, Jiangsu, China.
- Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu, China.
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, China.
- PersonGen BioTherapeutics (Suzhou) Co., Ltd., Suzhou, Jiangsu, China.
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7
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Wang D, Zhang T, Madunić K, de Waard AA, Blöchl C, Mayboroda OA, Griffioen M, Spaapen RM, Huber CG, Lageveen-Kammeijer GSM, Wuhrer M. Glycosphingolipid-Glycan Signatures of Acute Myeloid Leukemia Cell Lines Reflect Hematopoietic Differentiation. J Proteome Res 2022; 21:1029-1040. [PMID: 35168327 PMCID: PMC8981326 DOI: 10.1021/acs.jproteome.1c00911] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Aberrant expression of certain glycosphingolipids (GSLs) is associated with the differentiation of acute myeloid leukemia (AML) cells. However, the expression patterns of GSLs in AML are still poorly explored because of their complexity, the presence of multiple isomeric structures, and tedious analytical procedures. In this study, we performed an in-depth GSL glycan analysis of 19 AML cell lines using porous graphitized carbon liquid chromatography-mass spectrometry revealing strikingly different GSL glycan profiles between the various AML cell lines. The cell lines of the M6 subtype showed a high expression of gangliosides with α2,3-sialylation and Neu5Gc, while the M2 and M5 subtypes were characterized by high expression of (neo)lacto-series glycans and Lewis A/X antigens. Integrated analysis of glycomics and available transcriptomics data revealed the association of GSL glycan abundances with the transcriptomics expression of certain glycosyltransferases (GTs) and transcription factors (TFs). In addition, correlations were found between specific GTs and TFs. Our data reveal TFs GATA2, GATA1, and RUNX1 as candidate inducers of the expression of gangliosides and sialylation via regulation of the GTs ST3GAL2 and ST8SIA1. In conclusion, we show that GSL glycan expression levels are associated with hematopoietic AML classifications and TF and GT gene expression. Further research is needed to dissect the regulation of GSL expression and its role in hematopoiesis and associated malignancies.
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Affiliation(s)
- Di Wang
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, The Netherlands
| | - Tao Zhang
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, The Netherlands
| | - Katarina Madunić
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, The Netherlands
| | - Antonius A de Waard
- Department of Immunopathology, Sanquin Research, 1066 CX Amsterdam, The Netherlands.,Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands
| | - Constantin Blöchl
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, The Netherlands.,Department of Biosciences, University of Salzburg, Hellbrunnerstrasse 34, 5020 Salzburg, Austria
| | - Oleg A Mayboroda
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, The Netherlands
| | - Marieke Griffioen
- Department of Hematology, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, The Netherlands
| | - Robbert M Spaapen
- Department of Immunopathology, Sanquin Research, 1066 CX Amsterdam, The Netherlands.,Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands
| | - Christian G Huber
- Department of Biosciences, University of Salzburg, Hellbrunnerstrasse 34, 5020 Salzburg, Austria
| | | | - Manfred Wuhrer
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Postbus 9600, 2300 RC Leiden, The Netherlands
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8
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Gurney M, O’Dwyer M. Realizing Innate Potential: CAR-NK Cell Therapies for Acute Myeloid Leukemia. Cancers (Basel) 2021; 13:1568. [PMID: 33805422 PMCID: PMC8036691 DOI: 10.3390/cancers13071568] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/21/2021] [Accepted: 03/25/2021] [Indexed: 02/06/2023] Open
Abstract
Next-generation cellular immunotherapies seek to improve the safety and efficacy of approved CD19 chimeric antigen receptor (CAR) T-cell products or apply their principles across a growing list of targets and diseases. Supported by promising early clinical experiences, CAR modified natural killer (CAR-NK) cell therapies represent a complementary and potentially off-the-shelf, allogeneic solution. While acute myeloid leukemia (AML) represents an intuitive disease in which to investigate CAR based immunotherapies, key biological differences to B-cell malignancies have complicated progress to date. As CAR-T cell trials treating AML are growing in number, several CAR-NK cell approaches are also in development. In this review we explore why CAR-NK cell therapies may be particularly suited to the treatment of AML. First, we examine the established role NK cells play in AML biology and the existing anti-leukemic activity of NK cell adoptive transfer. Next, we appraise potential AML target antigens and consider common and unique challenges posed relative to treating B-cell malignancies. We summarize the current landscape of CAR-NK development in AML, and potential targets to augment CAR-NK cell therapies pharmacologically and through genetic engineering. Finally, we consider the broader landscape of competing immunotherapeutic approaches to AML treatment. In doing so we evaluate the innate potential, status and remaining barriers for CAR-NK based AML immunotherapy.
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Affiliation(s)
- Mark Gurney
- Apoptosis Research Center, National University of Ireland Galway, H91 TK33 Galway, Ireland;
| | - Michael O’Dwyer
- Apoptosis Research Center, National University of Ireland Galway, H91 TK33 Galway, Ireland;
- ONK Therapeutics Ltd., H91 V6KV Galway, Ireland
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9
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Artykov AA, Belov DA, Shipunova VO, Trushina DB, Deyev SM, Dolgikh DA, Kirpichnikov MP, Gasparian ME. Chemotherapeutic Agents Sensitize Resistant Cancer Cells to the DR5-Specific Variant DR5-B more Efficiently than to TRAIL by Modulating the Surface Expression of Death and Decoy Receptors. Cancers (Basel) 2020; 12:cancers12051129. [PMID: 32365976 PMCID: PMC7280987 DOI: 10.3390/cancers12051129] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/24/2020] [Accepted: 04/28/2020] [Indexed: 12/13/2022] Open
Abstract
TRAIL is considered a promising antitumor agent because it causes apoptosis of transformed cells without affecting normal cells. However, many types of tumors are cytokine resistant, and combination therapy with various chemotherapeutic drugs is being developed to overcome the resistance. We have demonstrated that the combination of TRAIL with doxorubicin, bortezomib, and panobinostat dramatically reduced the viability of TRAIL-resistant A549 and HT-29 cells. Chemotherapy even more efficiently sensitized cells to the DR5-specific mutant variant of TRAIL DR5-B, which does not have an affinity for decoy receptors. Bortezomib and doxorubicin greatly enhanced the surface expression of the death receptors DR5 and DR4, while panobinostat increased expression of DR5 and suppressed expression of DR4 in both cell lines. All drugs increased surface expression of the decoy receptors DcR1 and DcR2. Unlike the combined treatment, if the cells were pretreated with chemotherapy for 24 h, the cytotoxic activity of TRAIL was less pronounced, while sequential treatment of cells enhanced the effectiveness of DR5-B. The same results were obtained with agonistic anti-DR5 antibodies. Thus, the effectiveness of TRAIL was rather limited due to changes in the ratio of death and decoy receptors and DR5-specific agonists may be preferred in combination antitumor therapy regimens.
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Affiliation(s)
- Artem A. Artykov
- Department of Bioengineering, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia; (A.A.A.); (D.A.B.); (D.A.D.); (M.P.K.)
- Faculty of Biology, M.V. Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Dmitry A. Belov
- Department of Bioengineering, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia; (A.A.A.); (D.A.B.); (D.A.D.); (M.P.K.)
| | - Victoria O. Shipunova
- Department of Immunology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia; (V.O.S.); (S.M.D.)
| | - Daria B. Trushina
- Department of X-ray and Synchrotron Research, A.V. Shubnikov Institute of Crystallography of Federal Scientific Research Centre “Crystallography and Photonics” of Russian Academy of Sciences, 119333 Moscow, Russia;
| | - Sergey M. Deyev
- Department of Immunology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia; (V.O.S.); (S.M.D.)
| | - Dmitry A. Dolgikh
- Department of Bioengineering, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia; (A.A.A.); (D.A.B.); (D.A.D.); (M.P.K.)
- Faculty of Biology, M.V. Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Mikhail P. Kirpichnikov
- Department of Bioengineering, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia; (A.A.A.); (D.A.B.); (D.A.D.); (M.P.K.)
- Faculty of Biology, M.V. Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Marine E. Gasparian
- Department of Bioengineering, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia; (A.A.A.); (D.A.B.); (D.A.D.); (M.P.K.)
- Correspondence: ; Tel.: +7-905-515-7494
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10
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Naimi A, Entezari A, Hagh MF, Hassanzadeh A, Saraei R, Solali S. Quercetin sensitizes human myeloid leukemia KG-1 cells against TRAIL-induced apoptosis. J Cell Physiol 2018; 234:13233-13241. [PMID: 30589076 DOI: 10.1002/jcp.27995] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 11/30/2018] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Acute myeloid leukemia (AML) is the most common acute leukemia in adults. Conventional treatments are associated with cytotoxicity and systemic side effects. Hence, efforts in the field of cancer treatment are focused on finding the strategies which can specifically target the tumor cells without affecting the normal cells. TNF-related apoptosis-inducing ligand (TRAIL) is a biological cytokine which has the mentioned specificity, but the resistance of some cancer cells limits its use as a therapeutic strategy. Recent studies have shown that quercetin (QUR) can be used as a sensitizing agent alongside with TRAIL. The present study showed that QUR can increase the effect of TRAIL-induced cytotoxicity in KG-1 cells. MATERIALS AND METHODS In this descriptive study, the IC50 dose for QUR in the KG-1 cell line was first determined by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide assay. Then, the cells were treated with TRAIL and QUR for 12, 24, and 48 hr. The rate of apoptosis was measured by Annexin V/propidium iodide assay. Also, the molecular evaluation of candidate genes was accomplished before and after the treatment. RESULTS The results indicated that QUR could sensitize the KG-1 cells against the TRAIL-induced apoptosis. This outcome is achieved by increasing the messenger RNA expression levels of the death receptor genes and reducing the expression of antiapoptotic proteins, as well as decreasing the expression of the NF-κB subunit. CONCLUSION Our findings suggest that QUR can sensitize the acute myeloid KG-1 cells against TRAIL. Moreover, the combinational therapy of these agents might promisingly improve the clinical efficacy of TRAIL in patients with AML.
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Affiliation(s)
- Adel Naimi
- Department of Immunology, Division of Hematology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Atefeh Entezari
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Ali Hassanzadeh
- Department of Immunology, Division of Hematology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Raedeh Saraei
- Department of Immunology, Division of Hematology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Solali
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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The role of XIAP in resistance to TNF-related apoptosis-inducing ligand (TRAIL) in Leukemia. Biomed Pharmacother 2018; 107:1010-1019. [PMID: 30257312 DOI: 10.1016/j.biopha.2018.08.065] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 08/13/2018] [Accepted: 08/15/2018] [Indexed: 12/13/2022] Open
Abstract
The treatment for leukemic malignancies remains a challenge despite the wide use of conventional chemotherapies. Therefore, new therapeutic approaches are highly demanded. TNF-related apoptosis-inducing ligand (TRAIL) represents a targeted therapy against cancer because it induces apoptosis only in tumor cells. TRAIL is currently under investigation for the treatment of leukemia. Preclinical studies evaluated the potential therapeutic efficacy of TRAIL on cell lines and clinical samples and showed promising results. However, like most anti-cancer drugs, resistance to TRAIL-induced apoptosis may limit its clinical efficacy. It is critical to understand the molecular mechanisms of TRAIL. Therefore, rational therapeutic drug combinations for clinical trials of TRAIL-based therapies might be achieved. In a variety of leukemic cells, overexpression of X-linked inhibitor of apoptosis protein (XIAP), a negative regulator of apoptosis pathway, has been discovered. Implication of XIAP in the ineffective induction of cell death by TRAIL in leukemia has been explored in several resistant cell lines. XIAP inhibitors restored TRAIL sensitivity in resistant cells and primary leukemic blasts. Moreover, TRAIL resistance in leukemic cells could be overcome by the effects of several anti-leukemic agents via the mechanisms of XIAP downregulation. Here, we discuss targeting XIAP, a strategy to restore TRAIL sensitivity in leukemia to acquire more insights into the mechanisms of TRAIL resistance. The concluding remarks may lead to identify putative ways to resensitize tumors.
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12
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Down‐regulation of intracellular anti‐apoptotic proteins, particularly c‐FLIP by therapeutic agents; the novel view to overcome resistance to TRAIL. J Cell Physiol 2018; 233:6470-6485. [DOI: 10.1002/jcp.26585] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 03/08/2018] [Indexed: 12/24/2022]
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Bista R, Lee DW, Pepper OB, Azorsa DO, Arceci RJ, Aleem E. Disulfiram overcomes bortezomib and cytarabine resistance in Down-syndrome-associated acute myeloid leukemia cells. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2017; 36:22. [PMID: 28143565 PMCID: PMC5286849 DOI: 10.1186/s13046-017-0493-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Accepted: 01/26/2017] [Indexed: 02/02/2023]
Abstract
Background Children with Down syndrome (DS) have increased risk for developing AML (DS-AMKL), and they usually experience severe therapy-related toxicities compared to non DS-AMKL. Refractory/relapsed disease has very poor outcome, and patients would benefit from novel, less toxic, therapeutic strategies that overcome resistance. Relapse/resistance are linked to cancer stem cells with high aldehyde dehydrogenase (ALDH) activity. The purpose of the present work was to study less toxic alternative therapeutic agents for relapsed/refractory DS-AMKL. Methods Fourteen AML cell lines including the DS-AMKL CMY and CMK from relapsed/refractory AML were used. Cytarabine (Ara-C), bortezomib (BTZ), disulfiram/copper (DSF/Cu2+) were evaluated for cytotoxicity, depletion of ALDH-positive cells, and resistance. BTZ-resistant CMY and CMK variants were generated by continuous BTZ treatment. Cell viability was assessed using CellTiter-Glo®, ALDH activity by ALDELUORTM, and proteasome inhibition by western blot of ubiquitinated proteins and the Proteasome-Glo™ Chymotrypsin-Like (CT-like) assay, apoptosis by Annexin V Fluos/Propidium iodide staining, and mutations were detected using PCR, cloning and sequencing. Results Ara-C-resistant AML cell lines were sensitive to BTZ and DSF/Cu2+. The Ara-C-resistant DS-AMKL CMY cells had a high percentage of ALDHbright “stem-like” populations that may underlie Ara-C resistance. One percent of these cells were still resistant to BTZ but sensitive to DSF/Cu2+. To understand the mechanism of BTZ resistance, BTZ resistant (CMY-BR) and (CMK-BR) were generated. A novel mutation PSMB5 Q62P underlied BTZ resistance, and was associated with an overexpression of the β5 proteasome subunit. BTZ-resistance conferred increased resistance to Ara-C due to G1 arrest in the CMY-BR cells, which protected the cells from S-phase damage by Ara-C. CMY-BR and CMK-BR cells were cross-resistant to CFZ and MG-132 but sensitive to DSF/Cu2+. In this setting, DSF/Cu2+ induced apoptosis and proteasome inhibition independent of CT-like activity inhibition. Conclusions We provide evidence that DSF/Cu2+ overcomes Ara-C and BTZ resistance in cell lines from DS-AMKL patients. A novel mutation underlying BTZ resistance was detected that may identify BTZ-resistant patients, who may not benefit from treatment with CFZ or Ara-C, but may be responsive to DSF/Cu2+. Our findings support the clinical development of DSF/Cu2+ as a less toxic efficacious treatment approach in patients with relapsed/refractory DS-AMKL. Electronic supplementary material The online version of this article (doi:10.1186/s13046-017-0493-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ranjan Bista
- Institute of Molecular Medicine at Phoenix Children's Hospital, Phoenix, AZ, USA
| | - David W Lee
- Institute of Molecular Medicine at Phoenix Children's Hospital, Phoenix, AZ, USA.,Department of Child Health, University of Arizona College of Medicine-Phoenix, Biosciences Partnership Building (BSPB), 5th floor, 475 N 5th Street, Phoenix, AZ, 85004, USA
| | - Oliver B Pepper
- Department of Child Health, University of Arizona College of Medicine-Phoenix, Biosciences Partnership Building (BSPB), 5th floor, 475 N 5th Street, Phoenix, AZ, 85004, USA.,Department of Biology and Biochemistry, University of Bath, Bath, UK
| | - David O Azorsa
- Institute of Molecular Medicine at Phoenix Children's Hospital, Phoenix, AZ, USA.,Department of Child Health, University of Arizona College of Medicine-Phoenix, Biosciences Partnership Building (BSPB), 5th floor, 475 N 5th Street, Phoenix, AZ, 85004, USA
| | - Robert J Arceci
- Institute of Molecular Medicine at Phoenix Children's Hospital, Phoenix, AZ, USA.,Department of Child Health, University of Arizona College of Medicine-Phoenix, Biosciences Partnership Building (BSPB), 5th floor, 475 N 5th Street, Phoenix, AZ, 85004, USA
| | - Eiman Aleem
- Institute of Molecular Medicine at Phoenix Children's Hospital, Phoenix, AZ, USA. .,Department of Child Health, University of Arizona College of Medicine-Phoenix, Biosciences Partnership Building (BSPB), 5th floor, 475 N 5th Street, Phoenix, AZ, 85004, USA. .,Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt.
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Taskesen E, Staal FJT, Reinders MJT. An integrated approach of gene expression and DNA-methylation profiles of WNT signaling genes uncovers novel prognostic markers in acute myeloid leukemia. BMC Bioinformatics 2015; 16 Suppl 4:S4. [PMID: 25734857 PMCID: PMC4347618 DOI: 10.1186/1471-2105-16-s4-s4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background The wingless-Int (WNT) pathway has an essential role in cell regulation of hematopoietic stem cells (HSC). For Acute Myeloid Leukemia (AML), the malignant counterpart of HSC, currently only a selective number of genes of the WNT pathway are analyzed by using either gene expression or DNA-methylation profiles for the identification of prognostic markers and potential candidate targets for drug therapy. It is known that mRNA expression is controlled by DNA-methylation and that specific patterns can infer the ability to differentiate biological differences, thus a combined analysis using all WNT annotated genes could provide more insight in the WNT signaling. Approach We created a computational approach that integrates gene expression and DNA promoter methylation profiles. The approach represents the continuous gene expression and promoter methylation profiles with nine discrete mutually exclusive scenarios. The scenario representation allows for a refinement of patient groups by a more powerful statistical analysis, and the construction of a co-expression network. We focused on 268 WNT annotated signaling genes that are derived from the molecular signature database. Results Using the scenarios we identified seven prognostic markers for overall survival and event-free survival. Three genes are novel prognostic markers; two with favorable outcome (PSMD2, PPARD) and one with unfavorable outcome (XPNPEP). The remaining four genes (LEF1, SFRP2, RUNX1, and AXIN2) were previously identified but we could refine the patient groups. Three AML risk groups were further analyzed and the co-expression network showed that only the good risk group harbors frequent promoter hypermethylation and significantly correlated interactions with proteasome family members. Conclusion Our results provide novel insights in WNT signaling in AML, we discovered new and previously identified prognostic markers and a refinement of the patient groups.
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Al-Hussaini M, DiPersio JF. Small molecule inhibitors in acute myeloid leukemia: from the bench to the clinic. Expert Rev Hematol 2014; 7:439-64. [PMID: 25025370 PMCID: PMC4283573 DOI: 10.1586/17474086.2014.932687] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Many patients with acute myeloid leukemia will eventually develop refractory or relapsed disease. In the absence of standard therapy for this population, there is currently an urgent unmet need for novel therapeutic agents. Targeted therapy with small molecule inhibitors represents a new therapeutic intervention that has been successful for the treatment of multiple tumors (e.g., gastrointestinal stromal tumors, chronic myelogenous leukemia). Hence, there has been great interest in generating selective small molecule inhibitors targeting critical pathways of proliferation and survival in acute myeloid leukemia. This review highlights a selective group of intriguing therapeutic agents and their presumed targets in both preclinical models and in early human clinical trials.
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Affiliation(s)
- Muneera Al-Hussaini
- Department of Medicine, Division of Oncology, Washington University School of Medicine, St Louis Missouri
| | - John F. DiPersio
- Department of Medicine, Division of Oncology, Washington University School of Medicine, St Louis Missouri
- Siteman Cancer Center, Washington University School of Medicine and Barnes-Jewish Hospital, St Louis Missouri
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Bosman MCJ, Schuringa JJ, Quax WJ, Vellenga E. Bortezomib sensitivity of acute myeloid leukemia CD34+ cells can be enhanced by targeting the persisting activity of NF-κB and the accumulation of MCL-1. Exp Hematol 2013; 41:530-538.e1. [DOI: 10.1016/j.exphem.2013.02.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 02/01/2013] [Accepted: 02/05/2013] [Indexed: 10/27/2022]
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Szegezdi E, van der Sloot AM, Mahalingam D, O'Leary L, Cool RH, Muñoz IG, Montoya G, Quax WJ, de Jong S, Samali A, Serrano L. Kinetics in signal transduction pathways involving promiscuous oligomerizing receptors can be determined by receptor specificity: apoptosis induction by TRAIL. Mol Cell Proteomics 2012; 11:M111.013730. [PMID: 22213832 PMCID: PMC3316727 DOI: 10.1074/mcp.m111.013730] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Here we show by computer modeling that kinetics and outcome of signal transduction in case of hetero-oligomerizing receptors of a promiscuous ligand largely depend on the relative amounts of its receptors. Promiscuous ligands can trigger the formation of nonproductive receptor complexes, which slows down the formation of active receptor complexes and thus can block signal transduction. Our model predicts that increasing the receptor specificity of the ligand without changing its binding parameters should result in faster receptor activation and enhanced signaling. We experimentally validated this hypothesis using the cytokine tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) and its four membrane-bound receptors as an example. Bypassing ligand-induced receptor hetero-oligomerization by receptor-selective TRAIL variants enhanced the kinetics of receptor activation and augmented apoptosis. Our results suggest that control of signaling pathways by promiscuous ligands could result in apparent slow biological kinetics and blocking signal transmission. By modulating the relative amount of the different receptors for the ligand, signaling processes like apoptosis can be accelerated or decelerated and even inhibited. It also implies that more effective treatments using protein therapeutics could be achieved simply by altering specificity.
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Affiliation(s)
- Eva Szegezdi
- School of Natural Sciences, National University of Ireland, Galway, Ireland
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