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Lei M, Liu L, Wu D. Priming with GM-CSF instead of G-CSF enhances CAG-induced apoptosis of acute monocytic leukemia cells in vitro. Cancer Chemother Pharmacol 2019; 84:265-273. [PMID: 31115604 DOI: 10.1007/s00280-019-03857-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 05/02/2019] [Indexed: 11/24/2022]
Abstract
High expression of granulocyte-macrophage colony-stimulating factor (GM-CSF) receptor has been found in myelomonocytic or monocytic subtypes (M4/M5) of acute myeloid leukemia. Herein, we aimed to improve the effect of CAG [Ara-C, ACR, and G-CSF (granulocyte colony-stimulating factor)] regimen for acute monocytic leukemia by replacing G-CSF with GM-CSF. Results showed that the percentage of cells in S phase was higher with GM-CSF than with G-CSF treatment at 20 ng/mL (P < 0.05). When THP-1 and SHI-1 cells were primed with 20 ng/mL G-CSF or GM-CSF followed by Ara-C and ACR, cell proliferation rate in the CAGM (Ara-C, ACR, and GM-CSF) regimen was lower than in the CAG regimen (P < 0.05). Furthermore, CAGM regimen induced more obvious cell apoptosis than CAG regimen probably by reducing Bcl-2/Bax ratio (P < 0.05). Similar results were seen in primary cells from M5 patients. Collectively, our study suggests that priming with GM-CSF may be more effective than G-CSF in CAG regimen in acute monocytic leukemia.
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Affiliation(s)
- Meiqing Lei
- Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Key laboratory of Thrombosis and Hemostasis of Ministry of Health, Collaborative Innovation Center of Hematology, Suzhou Institute of Blood and Marrow Transplantation, 188 Shizi Street, Suzhou, 215006, Jiangsu, People's Republic of China.,Department of Hematology in Haikou Municipal People's Hospital, Affiliated Haikou Hospital Xiangya School of Medicine Central South University, Haikou, 570208, Hainan, People's Republic of China
| | - Limin Liu
- Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Key laboratory of Thrombosis and Hemostasis of Ministry of Health, Collaborative Innovation Center of Hematology, Suzhou Institute of Blood and Marrow Transplantation, 188 Shizi Street, Suzhou, 215006, Jiangsu, People's Republic of China
| | - Depei Wu
- Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Key laboratory of Thrombosis and Hemostasis of Ministry of Health, Collaborative Innovation Center of Hematology, Suzhou Institute of Blood and Marrow Transplantation, 188 Shizi Street, Suzhou, 215006, Jiangsu, People's Republic of China.
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Automated analysis of acute myeloid leukemia minimal residual disease using a support vector machine. Oncotarget 2018; 7:71915-71921. [PMID: 27713120 PMCID: PMC5342132 DOI: 10.18632/oncotarget.12430] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 09/29/2016] [Indexed: 11/29/2022] Open
Abstract
We investigated the ability of support vector machines (SVM) to analyze minimal residual disease (MRD) in flow cytometry data from patients with acute myeloid leukemia (AML) automatically, objectively and standardly. The initial disease data and MRD review data in the form of 159 flow cytometry standard 3.0 files from 36 CD7-positive AML patients in whom MRD was detected more than once were exported. SVM was used for training with setting the initial disease data to 1 as the flag and setting 15 healthy persons to set 0 as the flag. Based on the two training groups, parameters were optimized, and a predictive model was built to analyze MRD data from each patient. The automated analysis results from the SVM model were compared to those obtained through conventional analysis to determine reliability. Automated analysis results based on the model did not differ from and were correlated with results obtained through conventional analysis (correlation coefficient c = 0.986, P > 0.05). Thus the SVM model could potentially be used to analyze flow cytometry-based AML MRD data automatically, objectively, and in a standardized manner.
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Wu AY, Yang HC, Lin CM, Wu BD, Qu QS, Zheng YH, Wei H, Mei XQ, Zeng ZH, Ma XD. The Transcriptome Study of Subtype M2 Acute Myeloblastic Leukemia. Cell Biochem Biophys 2016; 72:653-6. [PMID: 27352183 DOI: 10.1007/s12013-014-0432-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Our objective is to explore the tumor-specific mutated genes by transcriptome sequencing of patients with acute myeloblastic leukemia. 96 patients with subtype M2 acute myeloid leukemia (AML), admitted during January 2007 to January 2012, were selected. Bone marrow and peripheral blood samples from the patients after the first visit and the patients who were improved or alleviated, were subjected to high-throughput sequencing to compare the gene expression. The single nucleotide mutation related to subtype M2 AML was detected. Meanwhile, real-time fluorescent quantitation RT-PCR was used to detect the AML1/ETO fusion gene and its correlation with prognosis after treatment. Among 96 patients, AML1-ETO fusion gene was positive in 52 cases, the positive rate was 54.17 %. The complete relief (CR) rate of AML1-ETO fusion gene positive patients was 84.62 %, and the CR rate of AML1/ETO fusion gene negative patients was 77.27 %; the CR rate of AML1-ETO positive patients was higher than that of patients without the fusion gene, however there was no statistical difference. In the analysis of recurrent gene mutation in AML-M2 patients, IDH2, ASXL1, TET2, JAK1 and JAK2 gene expressions were not significantly different before treatment and after CR, however, IDHI, JAK3, ABL1 and BCR gene expressions were significantly different. In the study of transcriptome in AML-M2 patients, high-throughput sequencing could effectively detect the difference of the gene expression before treatment and after CR. Furthermore, positive expression of AML1-ETO fusion gene had effect on the prognosis of patients.
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Affiliation(s)
- A-Yang Wu
- Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, 363000, Fujian, People's Republic of China
| | - Hui-Cong Yang
- Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, 363000, Fujian, People's Republic of China
| | - Cong-Meng Lin
- Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, 363000, Fujian, People's Republic of China
| | - Bi-de Wu
- Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, 363000, Fujian, People's Republic of China
| | - Qi-Shui Qu
- Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, 363000, Fujian, People's Republic of China
| | - Yuan-Hai Zheng
- Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, 363000, Fujian, People's Republic of China
| | - Hua Wei
- Xiamen University, Xiamen, Fujian, People's Republic of China
| | - Xu-Qiao Mei
- Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, 363000, Fujian, People's Republic of China
| | - Zhen-Hua Zeng
- Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, 363000, Fujian, People's Republic of China
| | - Xu-Dong Ma
- Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, 363000, Fujian, People's Republic of China.
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Moon HW, Kim TY, Oh BR, Hwang SM, Kwon J, Ku JL, Lee DS. Effects of granulocyte-colony stimulating factor and the expression of its receptor on various malignant cells. THE KOREAN JOURNAL OF HEMATOLOGY 2012; 47:219-24. [PMID: 23071478 PMCID: PMC3464340 DOI: 10.5045/kjh.2012.47.3.219] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 06/19/2012] [Accepted: 08/06/2012] [Indexed: 11/24/2022]
Abstract
Background Granulocyte-colony stimulating factor (G-CSF) is extensively used to improve neutrophil count during anti-cancer chemotherapy. We investigated the effects of G-CSF on several leukemic cell lines and screened for the expression of the G-CSF receptor (G-CSFR) in various malignant cells. Methods We examined the effects of the most commonly used commercial forms of G-CSF (glycosylated lenograstim and nonglycosylated filgrastim) on various leukemic cell lines by flow cytometry. Moreover, we screened for the expression of G-CSFR mRNA in 38 solid tumor cell lines by using real-time PCR. Results G-CSF stimulated proliferation (40-80% increase in proliferation in treated cells as compared to that in control cells) in 3 leukemic cell lines and induced differentiation of AML1/ETO+ leukemic cells. Among the 38 solid tumor cell lines, 5 cell lines (hepatoblastoma, 2 breast carcinoma, squamous cell carcinoma of the larynx, and melanoma cell lines) showed G-CSFR mRNA expression. Conclusion The results of the present study show that therapeutic G-CSF might stimulate the proliferation and differentiation of malignant cells with G-CSFR expression, suggesting that prescreening for G-CSFR expression in primary tumor cells may be necessary before using G-CSF for treatment.
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Affiliation(s)
- Hee Won Moon
- Department of Laboratory Medicine, Konkuk University School of Medicine, Seoul, Korea
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Salvage chemotherapy with low-dose cytarabine and aclarubicin in combination with granulocyte colony-stimulating factor priming in patients with refractory or relapsed acute myeloid leukemia with translocation (8;21). Leuk Res 2010; 35:604-7. [PMID: 21130493 DOI: 10.1016/j.leukres.2010.11.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2010] [Revised: 11/06/2010] [Accepted: 11/07/2010] [Indexed: 11/21/2022]
Abstract
High expression levels of granulocyte colony stimulating factor (G-CSF) receptor were found in the leukemic cells of acute myeloid leukemia (AML) patients with t(8;21). Therapeutic significance of G-CSF receptor on chemotherapy remains to be defined. We evaluate the efficacy and tolerability of CAG regimen, consisting of concurrent use of G-CSF with low-dose cytarabine and aclarubicin, in 36 refractory/relapsed AML patients with t(8;21). The overall complete remission (CR) rate was 75% and median CR duration was 12 months. No significant treatment-related adverse events were observed. These data demonstrate that CAG regimen might be an alternative option in the treatment of AML with t(8;21), especially in older patients or patients with co-morbidities.
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