1
|
Chen XY, Wen XM, Zhao W, Chu MQ, Gu Y, Huang HH, Yuan Q, Xu ZJ, Qian J, Lin J. ALOX5AP is a new prognostic indicator in acute myeloid leukemia. Discov Oncol 2023; 14:210. [PMID: 37994961 PMCID: PMC10667204 DOI: 10.1007/s12672-023-00826-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 11/10/2023] [Indexed: 11/24/2023] Open
Abstract
BACKGROUND The overexpression of ALOX5AP has been observed in many types of cancer and has been identified as an oncogene. However, its role in acute myeloid leukemia (AML) has not been extensively studied. This study aimed to identify the expression and methylation patterns of ALOX5AP in bone marrow (BM) samples of AML patients, and further explore its clinical significance. METHODS Eighty-two de novo AML patients and 20 healthy donors were included in the study. Meanwhile, seven public datasets from Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) were included to confirm the alteration of ALOX5AP. Receiver operating characteristic (ROC) curve analysis was applied to determine the discriminative capacity of ALOX5AP expression to discriminate AML. The prognostic value of ALOX5AP was identified by the Kaplan-Meier method and log-rank test. It was further validated in four independent cohorts (n = 1186). Significantly different genes associated with ALOX5AP expression were subsequently compared by LinkedOmics, and Metascape database. RESULTS The level of ALOX5AP expression was significantly increased in bone marrow cells of AML patients compared with healthy donors (P < 0.05). ROC curve analysis suggested that ALOX5AP expression might be a potential biomarker to discriminate AML from controls. ALOX5AP overexpression was associated with decreased overall survival (OS) in AML according to the TCGA data (P = 0.006), which was validated by other four independent cohorts. DNA methylation levels of ALOX5AP were significantly lower in AML patients compared to normal samples (P < 0.05), as confirmed in the Diseasemeth database and the independent cohort GSE63409. ALOX5AP level was positively associated with genes with proleukemic effects such as PAX2, HOX family, SOX11, H19, and microRNAs that act as oncogenes in leukemia, such as miR125b, miR-93, miR-494, miR-193b, while anti-leukemia-related genes and tumor suppressor microRNAs such as miR-582, miR-9 family and miR-205 were negatively correlated. CONCLUSION ALOX5AP overexpression, associated with its hypomethylation, predicts poorer prognosis in AML.
Collapse
Affiliation(s)
- Xin-Yi Chen
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- Zhenjiang Clinical Research Center of Hematology, Zhenjiang, Jiangsu, China
| | - Xiang-Mei Wen
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- Zhenjiang Clinical Research Center of Hematology, Zhenjiang, Jiangsu, China
| | - Wei Zhao
- Zhenjiang Clinical Research Center of Hematology, Zhenjiang, Jiangsu, China
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Ming-Qiang Chu
- Zhenjiang Clinical Research Center of Hematology, Zhenjiang, Jiangsu, China
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yu Gu
- Zhenjiang Clinical Research Center of Hematology, Zhenjiang, Jiangsu, China
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Hai-Hui Huang
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- Zhenjiang Clinical Research Center of Hematology, Zhenjiang, Jiangsu, China
| | - Qian Yuan
- Zhenjiang Clinical Research Center of Hematology, Zhenjiang, Jiangsu, China
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Zi-Jun Xu
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.
- Zhenjiang Clinical Research Center of Hematology, Zhenjiang, Jiangsu, China.
| | - Jun Qian
- Zhenjiang Clinical Research Center of Hematology, Zhenjiang, Jiangsu, China.
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.
| | - Jiang Lin
- Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.
- Zhenjiang Clinical Research Center of Hematology, Zhenjiang, Jiangsu, China.
| |
Collapse
|
2
|
Wang X, Baskaran L, Chan M, Boisvert W, Hausenloy DJ. Targeting leukotriene biosynthesis to prevent atherosclerotic cardiovascular disease. CONDITIONING MEDICINE 2023; 6:33-41. [PMID: 38800614 PMCID: PMC11126214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Atherosclerotic cardiovascular disease (ASCVD) is the leading cause of death and disability worldwide. As such, new treatments are needed to prevent the onset and progression of atherosclerosis to improve outcomes in patients with coronary, cerebrovascular, and peripheral arterial disease. In this regard, inflammation is known to be a critical driver of atherosclerosis formation and progression, thus it is a viable target for vascular protection in patients at risk of developing ASCVD. Leukotrienes, key pro-inflammatory lipid mediators derived from arachidonic acid, are associated with atheroma inflammation and progression. Genetic mutations in key components of the leukotriene synthesis pathway, such as 5-lipoxygenase (5-LO) and 5-lipoxygenase-activating protein (FLAP), are associated with an increased risk of cardiovascular disease, and pharmacological inhibition of 5-LO and FLAP has been reported to prevent atheroma formation in pre-clinical and early clinical studies. In this article, we provide an overview of these studies and highlight the therapeutic potential of targeting leukotriene synthesis to prevent atheroma inflammation and progression and improve outcomes in patients at risk of ASCVD.
Collapse
Affiliation(s)
- Xiaomeng Wang
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore
| | | | - Mark Chan
- Department of Cardiology, National University Heart Centre, National University Health System, Singapore
| | - William Boisvert
- Center for Cardiovascular Research, John A. Burns School of Medicine, University of Hawaii, USA
| | - Derek J Hausenloy
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore
- Yong Loo Lin Medical School, National University of Singapore, Singapore
- The Hatter Cardiovascular Institute, University College London, London, UK
| |
Collapse
|
3
|
Genetic and Epigenetic Regulation of Lipoxygenase Pathways and Reverse Cholesterol Transport in Atherogenesis. Genes (Basel) 2022; 13:genes13081474. [PMID: 36011386 PMCID: PMC9408222 DOI: 10.3390/genes13081474] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/12/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
Abstract
Atherosclerosis is one of the most important medical and social problems of modern society. Atherosclerosis causes a large number of hospitalizations, disability, and mortality. A considerable amount of evidence suggests that inflammation is one of the key links in the pathogenesis of atherosclerosis. Inflammation in the vascular wall has extensive cross-linkages with lipid metabolism, and lipid mediators act as a central link in the regulation of inflammation in the vascular wall. Data on the role of genetics and epigenetic factors in the development of atherosclerosis are of great interest. A growing body of evidence is strengthening the understanding of the significance of gene polymorphism, as well as gene expression dysregulation involved in cross-links between lipid metabolism and the innate immune system. A better understanding of the genetic basis and molecular mechanisms of disease pathogenesis is an important step towards solving the problems of its early diagnosis and treatment.
Collapse
|