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Pawlikowska P, Delestré L, Gregoricchio S, Oppezzo A, Esposito M, Diop MB, Rosselli F, Guillouf C. FANCA deficiency promotes leukaemic progression by allowing the emergence of cells carrying oncogenic driver mutations. Oncogene 2023; 42:2764-2775. [PMID: 37573408 PMCID: PMC10491493 DOI: 10.1038/s41388-023-02800-9] [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: 09/12/2022] [Revised: 07/21/2023] [Accepted: 07/28/2023] [Indexed: 08/14/2023]
Abstract
Leukaemia is caused by the clonal evolution of a cell that accumulates mutations/genomic rearrangements, allowing unrestrained cell growth. However, recent identification of leukaemic mutations in the blood cells of healthy individuals revealed that additional events are required to expand the mutated clones for overt leukaemia. Here, we assessed the functional consequences of deleting the Fanconi anaemia A (Fanca) gene, which encodes a DNA damage response protein, in Spi1 transgenic mice that develop preleukaemic syndrome. FANCA loss increases SPI1-associated disease penetrance and leukaemic progression without increasing the global mutation load of leukaemic clones. However, a high frequency of leukaemic FANCA-depleted cells display heterozygous activating mutations in known oncogenes, such as Kit or Nras, also identified but at low frequency in FANCA-WT mice with preleukaemic syndrome, indicating that FANCA counteracts the emergence of oncogene mutated leukaemic cells. A unique transcriptional signature is associated with the leukaemic status of FANCA-depleted cells, leading to activation of MDM4, NOTCH and Wnt/β-catenin pathways. We show that NOTCH signalling improves the proliferation capacity of FANCA-deficient leukaemic cells. Collectively, our observations indicate that loss of the FANC pathway, known to control genetic instability, fosters the expansion of leukaemic cells carrying oncogenic mutations rather than mutation formation. FANCA loss may contribute to this leukaemogenic progression by reprogramming transcriptomic landscape of the cells.
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Affiliation(s)
- Patrycja Pawlikowska
- CNRS UMR9019, Université Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France
- Equipe Labellisée Ligue Nationale Contre le Cancer, Villejuif, France
- Inserm U981, Gustave Roussy Cancer Campus, CNRS UMS3655, Inserm US23AMMICA, Villejuif, France
| | - Laure Delestré
- Equipe Labellisée Ligue Nationale Contre le Cancer, Villejuif, France
- Inserm UMR1170, Université Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France
| | - Sebastian Gregoricchio
- Equipe Labellisée Ligue Nationale Contre le Cancer, Villejuif, France
- Inserm UMR1170, Université Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Alessia Oppezzo
- CNRS UMR9019, Université Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France
- Equipe Labellisée Ligue Nationale Contre le Cancer, Villejuif, France
| | - Michela Esposito
- Equipe Labellisée Ligue Nationale Contre le Cancer, Villejuif, France
- Inserm UMR1170, Université Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France
| | - M' Boyba Diop
- Equipe Labellisée Ligue Nationale Contre le Cancer, Villejuif, France
- Inserm UMR1170, Université Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France
| | - Filippo Rosselli
- CNRS UMR9019, Université Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France.
- Equipe Labellisée Ligue Nationale Contre le Cancer, Villejuif, France.
| | - Christel Guillouf
- Equipe Labellisée Ligue Nationale Contre le Cancer, Villejuif, France.
- Inserm UMR1170, Université Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France.
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SPI1 Mediates N-Myristoyltransferase 1 to Advance Gastric Cancer Progression via PI3K/AKT/mTOR Pathway. Can J Gastroenterol Hepatol 2023; 2023:2021515. [PMID: 36967718 PMCID: PMC10038735 DOI: 10.1155/2023/2021515] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 03/19/2023] Open
Abstract
Gastric cancer (GC) is a common digestive tract malignancy worldwide. N-myristoyltransferase 1 (NMT1) has been implicated in many cancers, but its association with gastric cancer remains to be clarified. Thus, this paper elucidated the role of NMT1 in GC. The NMT1 expression level in GC and normal tissue samples as well as the relationship between NMT1 high or low expression and overall survival in GC was analyzed via GEPIA. GC cells were transfected with NMT1 or SPI1 overexpression plasmid and short hairpin RNA against NMT1 (shNMT1) or shSPI1. NMT1, SPI1, p-PI3K, PI3K, p-AKT, AKT, p-mTOR, and mTOR levels were detected through qRT-PCR and western blot. MTT, wound healing, and transwell assays were applied to test cell viability, migration, and invasion. The binding relationship of SPI1 and NMT1 was determined through a dual-luciferase reporter assay and chromatin immunoprecipitation. NMT1 was upregulated in GC, the high level of which connected with a poor prognosis. Overexpressed NMT1 elevated viability, migration rate, and invasion rate of GC cells, whereas NMT1 knockdown leads to the opposite results. Besides, SPI1 could bind to NMT1. Overexpressed NMT1 reversed the effects of shSPI1 on decreasing viability, migration, invasion, p-PI3K/PI3K, p-AKT/AKT, and p-mTOR/mTOR in GC cells, and NMT1 knockdown reversed the effects of SPI1 overexpression on increasing viability, migration, invasion, p-PI3K/PI3K, p-AKT/AKT, and p-mTOR/mTOR. SPI1 upregulated NMT1 to facilitate the malignant behaviors of GC cells through the PI3K/AKT/mTOR pathway.
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Liu X, Xu M, Jia W, Duan Y, Ma J, Tai W. PU.1 negatively regulates tumorigenesis in non-small-cell lung cancer. MEDICAL ONCOLOGY (NORTHWOOD, LONDON, ENGLAND) 2023; 40:79. [PMID: 36648591 DOI: 10.1007/s12032-023-01946-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 12/27/2022] [Indexed: 01/18/2023]
Abstract
PU.1 is a key transcription factor that modulates hematopoietic cell differentiation and is involved in various physiological and pathological processes. PU.1 has been described to have multiple roles in a diverse range of cancers, but its contribution in non-small-cell lung cancer (NSCLC) has not been clearly elucidated. Fifty pairs of lung adenocarcinoma (LUAD) tissues and paraneoplastic tissues were collected. RT-qPCR assay was used to test PU.1 expression. Expression of PU.1 in LUAD cell lines and control cell lines was detected by RT-qPCR, and the role of PU.1 in LUAD was investigated by in vitro experiment. Levels of the major proteins in the apoptotic pathway were also detected by Western blot. The expression of PU.1 was remarkably downregulated in LUAD. Overexpression of PU.1 impaired the viability of LUAD cells as well as their metastatic function. In addition, PU.1 promoted apoptosis of LUAD cells by decreasing Bcl2 and increasing Bax/Bak1 expression. PU.1 plays an inhibitory role in LUAD, mainly promoting the apoptosis of LUAD cells.
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Affiliation(s)
- Xiaoxiao Liu
- Department of Clinical Laboratory, Yunnan Molecular Diagnostic Center, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Muli Xu
- Department of Clinical Laboratory, Yunnan Molecular Diagnostic Center, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Wanting Jia
- Department of Clinical Laboratory, Yunnan Molecular Diagnostic Center, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yu Duan
- Department of Clinical Laboratory, Yunnan Molecular Diagnostic Center, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Jiaxuan Ma
- Department of Clinical Laboratory, Yunnan Molecular Diagnostic Center, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Wenlin Tai
- Department of Clinical Laboratory, Yunnan Molecular Diagnostic Center, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China.
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An Integrative Bioinformatics Analysis of the Potential Mechanisms Involved in Propofol Affecting Hippocampal Neuronal Cells. COMPUTATIONAL INTELLIGENCE AND NEUROSCIENCE 2022; 2022:4911773. [PMID: 35515499 PMCID: PMC9064519 DOI: 10.1155/2022/4911773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/22/2022] [Accepted: 03/29/2022] [Indexed: 12/18/2022]
Abstract
The aim of this study is to probe the possible molecular mechanisms underlying the effects of propofol on HT22 cells. HT22 cells treated with different concentrations were sequenced, and then the results of the sequencing were analyzed for dynamic trends. Expression pattern clustering analysis was performed to demonstrate the expression of genes in the significant trend modules in each group of samples. We first chose the genes related to the trend module for WGCNA analysis, then constructed the PPI network of module genes related to propofol treatment group, and screened the key genes. Finally, GSEA analysis was performed on the key genes. Overall, 2,506 genes showed a decreasing trend with increasing propofol concentration, and 1,871 genes showed an increasing trend with increasing propofol concentration. WGCNA analysis showed that among them, turquoise panel genes were negatively correlated with propofol treatment, and genes with Cor R >0.9 in the turquoise panel were selected for PPI network construction. The MCC algorithm screened a total of five key genes (CD86, IL10RA, PTPRC, SPI1, and ITGAM). GSEA analysis showed that CD86, IL10RA, PTPRC, SPI1, and ITGAM are involved in the PRION_DISEASES pathway. Our study showed that propofol sedation can affect mRNA expression in the hippocampus, providing new ideas to identify treatment of nerve injury induced by propofol anesthesia.
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Zimmer TS, Korotkov A, Zwakenberg S, Jansen FE, Zwartkruis FJT, Rensing NR, Wong M, Mühlebner A, van Vliet EA, Aronica E, Mills JD. Upregulation of the pathogenic transcription factor SPI1/PU.1 in tuberous sclerosis complex and focal cortical dysplasia by oxidative stress. Brain Pathol 2021; 31:e12949. [PMID: 33786950 PMCID: PMC8412124 DOI: 10.1111/bpa.12949] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/23/2021] [Accepted: 03/08/2021] [Indexed: 12/13/2022] Open
Abstract
Tuberous sclerosis complex (TSC) is a congenital disorder characterized by cortical malformations and concomitant epilepsy caused by loss‐of‐function mutations in the mTOR suppressors TSC1 or TSC2. While the underlying molecular changes caused by mTOR activation in TSC have previously been investigated, the drivers of these transcriptional change have not been fully elucidated. A better understanding of the perturbed transcriptional regulation could lead to the identification of novel pathways for therapeutic intervention not only in TSC, but other genetic epilepsies in which mTOR activation plays a key role, such as focal cortical dysplasia 2b (FCD). Here, we analyzed RNA sequencing data from cortical tubers and a tsc2−/− zebrafish. We identified differential expression of the transcription factors (TFs) SPI1/PU.1, IRF8, GBX2, and IKZF1 of which SPI1/PU.1 and IRF8 targets were enriched among the differentially expressed genes. Furthermore, for SPI1/PU.1 these findings were conserved in TSC zebrafish model. Next, we confirmed overexpression of SPI1/PU.1 on the RNA and protein level in a separate cohort of surgically resected TSC tubers and FCD tissue, in fetal TSC tissue, and a Tsc1GFAP−/− mouse model of TSC. Subsequently, we validated the expression of SPI1/PU.1 in dysmorphic cells with mTOR activation in TSC tubers. In fetal TSC, we detected SPI1/PU.1 expression prenatally and elevated RNA Spi1 expression in Tsc1GFAP−/− mice before the development of seizures. Finally, in vitro, we identified that in astrocytes and neurons SPI1 transcription was driven by H2O2‐induced oxidative stress, independent of mTOR. We identified SPI1/PU.1 as a novel TF involved in the pro‐inflammatory gene expression of malformed cells in TSC and FCD 2b. This transcriptional program is activated in response to oxidative stress and already present prenatally. Importantly, SPI1/PU.1 protein appears to be strictly limited to malformed cells, as we did not find SPI1/PU.1 protein expression in mice nor in our in vitro models.
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Affiliation(s)
- Till S Zimmer
- Department of (Neuro)Pathology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Anatoly Korotkov
- Department of (Neuro)Pathology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Susan Zwakenberg
- Center for Molecular Medicine, Molecular Cancer Research, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Floor E Jansen
- Department of Pediatric Neurology, Brain Center, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Fried J T Zwartkruis
- Center for Molecular Medicine, Molecular Cancer Research, University Medical Center Utrecht, Utrecht, the Netherlands
| | | | - Michael Wong
- Department of Neurology, Washington University, Saint Louis, MO, USA
| | - Angelika Mühlebner
- Department of (Neuro)Pathology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.,Department of Pathology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Erwin A van Vliet
- Department of (Neuro)Pathology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.,Center for Neuroscience, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, the Netherlands
| | - Eleonora Aronica
- Department of (Neuro)Pathology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.,Stichting Epilepsie Instellingen Nederland (SEIN), Heemstede, the Netherlands
| | - James D Mills
- Department of (Neuro)Pathology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.,Department of Clinical and Experimental Epilepsy, UCL, London, UK.,Chalfont Centre for Epilepsy, Chalfont St Peter, UK
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Panagopoulos A, Altmeyer M. The Hammer and the Dance of Cell Cycle Control. Trends Biochem Sci 2020; 46:301-314. [PMID: 33279370 DOI: 10.1016/j.tibs.2020.11.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/22/2020] [Accepted: 11/05/2020] [Indexed: 12/14/2022]
Abstract
Cell cycle checkpoints secure ordered progression from one cell cycle phase to the next. They are important to signal cell stress and DNA lesions and to stop cell cycle progression when severe problems occur. Recent work suggests, however, that the cell cycle control machinery responds in more subtle and sophisticated ways when cells are faced with naturally occurring challenges, such as replication impediments associated with endogenous replication stress. Instead of following a stop and go approach, cells use fine-tuned deceleration and brake release mechanisms under the control of ataxia telangiectasia and Rad3-related protein kinase (ATR) and checkpoint kinase 1 (CHK1) to more flexibly adapt their cell cycle program to changing conditions. We highlight emerging examples of such intrinsic cell cycle checkpoint regulation and discuss their physiological and clinical relevance.
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Affiliation(s)
- Andreas Panagopoulos
- Department of Molecular Mechanisms of Disease, University of Zurich, Zurich, Switzerland
| | - Matthias Altmeyer
- Department of Molecular Mechanisms of Disease, University of Zurich, Zurich, Switzerland.
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Wa Q, Huang S, Pan J, Tang Y, He S, Fu X, Peng X, Chen X, Yang C, Ren D, Huang Y, Liao Z, Huang S, Zou C. miR-204-5p Represses Bone Metastasis via Inactivating NF-κB Signaling in Prostate Cancer. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 18:567-579. [PMID: 31678733 PMCID: PMC6838892 DOI: 10.1016/j.omtn.2019.09.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 06/13/2019] [Accepted: 09/10/2019] [Indexed: 12/26/2022]
Abstract
The prime issue derived from prostate cancer (PCa) is its high prevalence to metastasize to bone. MicroRNA-204-5p (miR-204-5p) has been reported to be involved in the development and metastasis in a variety of cancers. However, the clinical significance and biological functions of miR-204-5p in bone metastasis of PCa are still not reported yet. In this study, we find that miR-204-5p expression is reduced in PCa tissues and serum sample with bone metastasis compared with that in PCa tissues and serum sample without bone metastasis, which is associated with advanced clinicopathological characteristics and poor bone metastasis-free survival in PCa patients. Moreover, upregulation of miR-204-5p inhibits the migration and invasion of PCa cells in vitro, and importantly, upregulating miR-204-5p represses bone metastasis of PCa cells in vivo. Our results further demonstrated that miR-204-5p suppresses invasion, migration, and bone metastasis of PCa cells via inactivating nuclear factor κB (NF-κB) signaling by simultaneously targeting TRAF1, TAB3, and MAP3K3. In clinical PCa samples, miR-204-5p expression negatively correlates with TRAF1, TAB3, and MAP3K3 expression and NF-κB signaling activity. Therefore, our findings reveal a new mechanism underpinning the bone metastasis of PCa, as well as provide evidence that miR-204-5p might serve as a novel serum biomarker in bone metastasis of PCa. This study identifies a novel functional role of miR-204-5p in bone metastasis of prostate cancer and supports the potential clinical value of miR-204-5p as a serum biomarker in bone metastasis of PCa.
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Affiliation(s)
- Qingde Wa
- Department of Orthopaedic Surgery, The Affiliated Hospital of Zunyi Medical College, 563003 Zunyi, China
| | - Sheng Huang
- Department of Orthopaedic Surgery, The Affiliated Hospital of Nanchang University, 563003 Zunyi, China
| | - Jincheng Pan
- Department of Urology Surgery, The First Affiliated Hospital of Sun Yat-sen University, 510080 Guangzhou, China
| | - Yubo Tang
- Department of Pharmacy, The First Affiliated Hospital of Sun Yat-Sen University, 510080 Guangzhou, China
| | - Shaofu He
- Department of Radiology, The First Affiliated Hospital of Sun Yat-sen University, 510080 Guangzhou, China
| | - Xiaodong Fu
- School of Basic Sciences, Guangzhou Medical University, Guangzhou, 510182 Guangzhou, China
| | - Xinsheng Peng
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Sun Yat-sen University, 510080 Guangzhou, China
| | - Xiao Chen
- Department of Pharmacy, The First Affiliated Hospital of Sun Yat-Sen University, 510080 Guangzhou, China
| | - Chunxiao Yang
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Dong Ren
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Sun Yat-sen University, 510080 Guangzhou, China
| | - Yan Huang
- Department of Orthopaedic Surgery, the Second Affiliated Hospital of Guangzhou Medical University, 510260 Guangzhou, China
| | - Zhuangwen Liao
- Department of Orthopaedic Surgery, the Second Affiliated Hospital of Guangzhou Medical University, 510260 Guangzhou, China
| | - Shuai Huang
- Department of Orthopaedic Surgery, the Second Affiliated Hospital of Guangzhou Medical University, 510260 Guangzhou, China.
| | - Changye Zou
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Sun Yat-sen University, 510080 Guangzhou, China.
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Abo Elwafa R, Gamaleldin M, Ghallab O. The clinical and prognostic significance of FIS1, SPI1, PDCD7 and Ang2 expression levels in acute myeloid leukemia. Cancer Genet 2018; 233-234:84-95. [PMID: 30555023 DOI: 10.1016/j.cancergen.2018.12.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 11/12/2018] [Accepted: 12/03/2018] [Indexed: 01/01/2023]
Abstract
OBJECTIVES The marked heterogeneity of acute myeloid leukemia (AML) renders precisely predicting patient prognosis extremely difficult. Genetic alterations, fusions and mutations, may result in misexpression of key genes in AML. We aimed to investigate the expression patterns of 4 novel genes; FIS1, SPI1, PDCD7 and Ang2 to determine their potential prognostic role in AML patients. METHODS Bone marrow mononuclear cells were analyzed for of FIS1, SPI1, PDCD7 and Ang2 expression levels by real-time quantitative PCR as well as of FLT3/ITD and NPM1 mutations in 100 newly diagnosed cytogenetically normal (CN-AML) patients, and 100 non-malignant controls. RESULTS FIS1, SPI1, PDCD7 and Ang2 were significantly overexpressed in CN-AML patients (p < 0.001). Their high expression levels were significantly associated with lower complete remission (CR) rate, shorter relapse-free survival (RFS) and overall survival (OS). On multivariate analysis, high FIS1 expression showed a significant impact on CR response after induction therapy (OR = 88.777, 95% C.I: 2.85-2765.78, p = 0.011) while high PDCD7 appeared to be an independent risk factor for RFS (HR = 5.107, 95% C.I: 1.731-15.066, p = 0.003) and OS (HR = 7.353, 95% C.I: 1.859-29.079, p = 0.004) in CN-AML patients. CONCLUSIONS FIS1 and PDCD7 expression are considered independent risk factors and should be integrated into the current AML stratification system.
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Affiliation(s)
- Reham Abo Elwafa
- Clinical Pathology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt.
| | - Marwa Gamaleldin
- Clinical Pathology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Omar Ghallab
- Internal Medicine Department (Hematology Unit), Faculty of Medicine, Alexandria University, Alexandria, Egypt
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