dentification of intrinsically disordered regions in hub genes of acute myeloid leukemia: a bioinformatics approach

Author(s):  
Mehrdad Ameri ◽  
Maedeh Alipour ◽  
Mobina Madihi ◽  
Navid Nezafat
2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Caixia Han ◽  
Shujiao He ◽  
Ruiqi Wang ◽  
Xuefeng Gao ◽  
Hong Wang ◽  
...  

Abstract Background Rho GTPase activating protein 9 (ARHGAP9) is expressed in various types of cancers and can inactivate Rho GTPases that mainly regulate cytoskeletal dynamics. However, the exact role of ARHGAP9 in acute myeloid leukemia (AML) has yet to be clarified. Methods We compared the transcriptional expression, prognosis, differentially expressed genes, functional enrichment, and hub genes in AML patients on the basis of the data published in the following databases: UALCAN, GEPIA, Gene Expression Omnibus, the Human Protein Atlas, Cancer Cell Line Encyclopedia, LinkedOmics, Metascape, and String. Data from the Cancer Genome Atlas database was used to evaluate the correlations between ARHGAP9 expression and various clinicopathological parameters, as well as the significantly different genes associated with ARHGAP9 expression. Results We found that ARHGAP9 expression was higher in the tissues and cell lines extracted from patients with AML than corresponding control tissues and other cancer types. ARHGAP9 overexpression was associated with decreased overall survival (OS) in AML. Compared with the ARHGAP9low group, the ARHGAP9high group, which received only chemotherapy, showed significantly worse OS and event-free survival (EFS); however, no significant difference was observed after treatment with autologous or allogeneic hematopoietic stem cell transplantation (auto/allo-HSCT). The ARHGAP9high patients undergoing auto/allo-HSCT also had a significantly better prognosis with respect to OS and EFS than those receiving only chemotherapy. Most overlapping genes of the significantly different genes and co-expression genes exhibited enriched immune functions, suggesting the immune regulation potential of ARHGAP9 in AML. A total of 32 hub genes were identified from the differentially expressed genes, within which the KIF20A had a significant prognostic value for AML. Conclusions ARHGAP9 overexpression was associated with poor OS in AML patients and can be used as a prognostic biomarker. AML patients with ARHGAP9 overexpression can benefit from auto/allo-HSCT rather than chemotherapy.


Medicine ◽  
2020 ◽  
Vol 99 (35) ◽  
pp. e22047
Author(s):  
Youping Tan ◽  
Liling Zheng ◽  
Yuanyuan Du ◽  
Qi Zhong ◽  
Yangmin Zhu ◽  
...  

2021 ◽  
Vol 10 (1) ◽  
pp. 126-140
Author(s):  
Daxia Cai ◽  
Jiajian Liang ◽  
Xing-Dong Cai ◽  
Ying Yang ◽  
Gexiu Liu ◽  
...  

2021 ◽  
Author(s):  
Ajeet Kumar ◽  
Ravi Bhushan ◽  
Pawan K. Dubey ◽  
Vijai Tilak ◽  
Vineeta Gupta ◽  
...  

Abstract Acute myeloid leukemia (AML) is a type of blood cancers that begins from progenitor and hematopoietic stem cell. Chromosomal abnormalities include balanced translocations between two chromosome like t[8;21] and t[15;17]) in malignancies cells. The present study aimed to explore the AML presenting with leukopenia and gene expression changes induced in High-white count B-cell and Low-white count B-cell the total number of samples is ten. The raw gene expression profiles (ID: GSE20482) of bone marrow achieve from AML patient five High-white count B-cell and five Low-white count B-cell were expressed genes used to recognize differentially. These genes that correspond to official gene symbols were select for protein-protein interaction (PPI) and sub-network construction (score > 0.4). The functional annotation of Gene Ontology (GO) and pathways analysis were performed for those genes involve in networking.ResultsThe total number of 846 genes were identified differentially expressed gene and 406 gene were up-regulated another 440 gene were down-regulated. Other 14 genes are interacting with each other significantly identified. Including Hub genes DEGs GNB4, LAMTOR2, ACTN4, HGSNAT, TMED1 are up-regulated while down-regulated DEGs forming hub nodes were UBR4, FBXO30, KLHL21, DCTN6, RNF123, RNF114. AML has a major effect on the expression of genes involved in cell differentiation, apoptosis, cell signaling and modification of protein. AML cells enter the blood quickly and spread to the liver, spleen, and central nervous system. These are total thirteen pathways were enriched and these genes related to oxidative phosphorylation, regulation of actin cytoskeleton, endocytosis, phagocytosis, shigellosis, epithelial cell signaling in helicobacter, adherent junction, pertussis, bile secretion, malaria, African trypanosomiasis were found significantly affected by AML.ConclusionsHub genes like GNB4 and UBR4 provide as a novel biomarker in AML.


2020 ◽  
Author(s):  
Caixia Han ◽  
Shujiao He ◽  
Ruiqi Wang ◽  
Xuefeng Gao ◽  
Hong Wang ◽  
...  

Abstract Background: Rho GTPase activating protein 9 (ARHGAP9) is expressed in many cancers and can inactivate Rho GTPases that are key regulators of cytoskeletal dynamics. However, the exact role of ARHGAP9 in acute myeloid leukemia (AML) is still unclear. Methods: We compared the transcriptional expression, prognosis, differentially expressed genes, function enrichment, and hub genes in AML patients based on published data in UALCAN, GEPIA, Gene Expression Omnibus (GEO), the Human Protein Atlas (HPA), Cancer Cell Line Encyclopedia (CCLE), LinkedOmics, Metascape, and String databases. Data from the Cancer Genome Atlas (TCGA) database was used to evaluate the correlations between ARHGAP9 expression and various clinicopathological parameters as well as the significantly different genes associated with ARHGAP9 expression.Results: We found that ARHGAP9 expression was higher in AML patient tissues and cell lines than the corresponding control tissues and other cancer types. Furthermore, ARHGAP9 over-expression was associated with shorter overall survival (OS) in AML patients. Compared with the ARHGAP9low group, ARHGAP9high patients received only chemotherapy showed the significantly worse OS and event-free survival (EFS), but no significant difference after treatment with autologous or allogeneic hematopoietic stem cell transplantation (auto/allo-HSCT). In addition, ARHGAP9high patients undergoing auto/allo-HSCT had significantly better prognosis in OS and EFS than those receiving only chemotherapy. Because most of the overlapping gene between the significantly different genes and co-expression genes were enriched in the immune functions, suggesting an immune regulation potential of ARHGAP9 in AML. Thirty-two hub genes were identified from the differently expressed genes, within which the KIF20A had significant prognostic value for AML.Conclusions: Our results demonstrated that ARHGAP9 overexpression was associated with poor OS in AML patients and can be used as a prognosis biomarker. AML patients with ARHGAP9 over-expression could benefit from auto/allo-HSCT rather than chemotherapy.


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