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Sun H, Ren Y, Zhou X, Chen Q, Liu Y, Zhu C, Ruan Y, Ruan H, Tong H, Ying S, Lin P. DUSP1 Signaling Pathway Regulates Cytarabine Sensitivity in Acute Myeloid Leukemia. Technol Cancer Res Treat 2023; 22:15330338231207765. [PMID: 37872685 PMCID: PMC10594969 DOI: 10.1177/15330338231207765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/30/2023] [Accepted: 08/23/2023] [Indexed: 10/25/2023] Open
Abstract
Objectives: Dual specificity phosphatase 1 (DUSP1) is high-expressed in various cancers and plays an important role in the cellular response to agents that damage DNA. We aimed to investigate the expressions and mechanisms of DUSP1 signaling pathway regulating cytarabine (Ara-C) resistance in acute myeloid leukemia (AML). Methods: Immunohistochemistry was performed on bone marrow biopsy specimens from AML and controls to explore the expression of DUSP1. Western blot and Q-PCR were used to detect the protein and mRNA expression levels. MTT assay was used to detect the proliferation of cells. Cell apoptosis was detected by flow cytometry. The immune protein-protein interaction (PPI) network of DUSP1 was analyzed in the platform of Pathway Commons, and immune infiltration analysis was used to study the immune microenvironment of AML. Results: We found that the expression levels of DUSP1 in AML patients exceeded that in controls. Survival analysis in public datasets showed that AML patients with higher levels of DUSP1 had poor clinical outcomes. Further public data analysis indicated that DUSP1 was overexpressed in NRAS mutated AML. DUSP1 knockdown by siRNA could sensitize AML cells to Ara-C treatments. The phosphorylation level of mitogen-activated protein kinase (MAPK) pathway was significantly elevated in DUSP1 down-regulated NRAS G13D mutated AML cells. The PPI analysis showed DUSP1 correlated with immune gene CREB1 and CXCL8 in NRAS mutated AML. We also revealed a correlation between tumor-infiltrating immune cells in RAS mutated AML microenvironment. Conclusion: Our findings suggest that DUSP1 signaling pathways may regulate Ara-C sensitivity in AML.
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Affiliation(s)
- Huali Sun
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Yanling Ren
- Myelodysplastic Syndrome Center, Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xinping Zhou
- Myelodysplastic Syndrome Center, Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Qi Chen
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Yanmei Liu
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Chumeng Zhu
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Yanyun Ruan
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Hongli Ruan
- Department of Emergency Medicine, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Hongyan Tong
- Myelodysplastic Syndrome Center, Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Shenpeng Ying
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Peipei Lin
- Department of Radiotherapy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
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Jaramillo AC, Hubeek I, Broekhuizen R, Pastor-Anglada M, Kaspers GJL, Jansen G, Cloos J, Peters GJ. Expression of the nucleoside transporters hENT1 (SLC29) and hCNT1 (SLC28) in pediatric acute myeloid leukemia. Nucleosides Nucleotides Nucleic Acids 2020; 39:1379-1388. [PMID: 32312148 DOI: 10.1080/15257770.2020.1746803] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cellular uptake of clinically important deoxynucleoside analogs is mediated by nucleoside transporters including the human equilibrative nucleoside transporter 1 (hENT1) and the concentrative nucleoside transporter-1 (hCNT1). These transporters are responsible for influx of cytarabine and reduced hENT1 expression is a major resistance mechanism in acute myeloid leukemia. We determined hENT1 and hCNT1 protein expression by immunocytochemistry in 50 diagnostic pediatric acute myeloid leukemia patient samples. All samples expressed hENT1 [9/43 (21%) low; 26/43 (60%) medium and 8/43 (19%) high] and hCNT1 [2/42 (5%) low; 35/42 (83%) medium and 5/42 (12%) high] at the cell membrane and cytoplasm. Statistical analysis showed a non-significant relationship between survival and transporter expression and in vitro drug sensitivity. In conclusion, the nucleoside transporters hENT1 and hCNT1 are broadly expressed in pediatric acute myeloid leukemia at diagnosis.
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Affiliation(s)
| | - Isabelle Hubeek
- Clinical Chemistry, Amsterdam University Medical Centers, Location VUMC, Amsterdam, The Netherlands
| | - Richard Broekhuizen
- Depts of Pediatric Hematology, Amsterdam University Medical Centers, Location VUMC, Amsterdam, The Netherlands.,Department of Hematology-Oncology, Pontifical Catholic University of Chile, Santiago, Chile
| | - Marçal Pastor-Anglada
- Department de Bioquímica i Biologia Molecular, Universitat de Barcelona, Barcelona, Spain
| | - Gertjan J L Kaspers
- Princess Maxima Center for Pediatric Cancer, Utrecht, and SKION, The Netherlands.,Emma's Children's Hospital, Amsterdam UMC, Location VUMC, Pediatric Oncology, Amsterdam, The Netherlands
| | - Gerrit Jansen
- Reumatology, Amsterdam University Medical Centers, Location VUMC, Amsterdam, The Netherlands
| | - Jacqueline Cloos
- Depts of Pediatric Hematology, Amsterdam University Medical Centers, Location VUMC, Amsterdam, The Netherlands
| | - Godefridus J Peters
- Laboratory Medical Oncology, Amsterdam University Medical Centers, Location VUMC, Amsterdam, The Netherlands.,Department of Biochemistry, Medical University of Gdansk, Gdansk, Poland
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Tsuda M, Terada K, Ooka M, Kobayashi K, Sasanuma H, Fujisawa R, Tsurimoto T, Yamamoto J, Iwai S, Kadoda K, Akagawa R, Huang SYN, Pommier Y, Sale JE, Takeda S, Hirota K. The dominant role of proofreading exonuclease activity of replicative polymerase ε in cellular tolerance to cytarabine (Ara-C). Oncotarget 2018; 8:33457-33474. [PMID: 28380422 PMCID: PMC5464882 DOI: 10.18632/oncotarget.16508] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 02/28/2017] [Indexed: 11/25/2022] Open
Abstract
Chemotherapeutic nucleoside analogs, such as Ara-C, 5-Fluorouracil (5-FU) and Trifluridine (FTD), are frequently incorporated into DNA by the replicative DNA polymerases. However, it remains unclear how this incorporation kills cycling cells. There are two possibilities: Nucleoside analog triphosphates inhibit the replicative DNA polymerases, and/or nucleotide analogs mis-incorporated into genomic DNA interfere with the next round of DNA synthesis as replicative DNA polymerases recognize them as template DNA lesions, arresting synthesis. To address the first possibility, we selectively disrupted the proofreading exonuclease activity of DNA polymerase ε (Polε), the leading-strand replicative polymerase in avian DT40 and human TK6 cell lines. To address the second, we disrupted RAD18, a gene involved in translesion DNA synthesis, a mechanism that relieves stalled replication. Strikingly, POLE1exo−/− cells, but not RAD18−/− cells, were hypersensitive to Ara-C, while RAD18−/− cells were hypersensitive to FTD. gH2AX focus formation following a pulse of Ara-C was immediate and did not progress into the next round of replication, while gH2AX focus formation following a pulse of 5-FU and FTD was delayed to the next round of replication. Biochemical studies indicate that human proofreading-deficient Polε-exo− holoenzyme incorporates Ara-CTP, but subsequently extend from this base several times less efficiently than from intact nucleotides. Together our results suggest that Ara-C acts by blocking extension of the nascent DNA strand and is counteracted by the proofreading activity of Polε, while 5-FU and FTD are efficiently incorporated but act as replication fork blocks in the subsequent S phase, which is counteracted by translesion synthesis.
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Affiliation(s)
- Masataka Tsuda
- Department of Radiation Genetics, Graduate School of Medicine, Kyoto University, Yoshidakonoe, Sakyo-Ku, Kyoto 606-8501, Japan
| | - Kazuhiro Terada
- Department of Radiation Genetics, Graduate School of Medicine, Kyoto University, Yoshidakonoe, Sakyo-Ku, Kyoto 606-8501, Japan
| | - Masato Ooka
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji-Shi, Tokyo 192-0397, Japan
| | - Koji Kobayashi
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji-Shi, Tokyo 192-0397, Japan
| | - Hiroyuki Sasanuma
- Department of Radiation Genetics, Graduate School of Medicine, Kyoto University, Yoshidakonoe, Sakyo-Ku, Kyoto 606-8501, Japan
| | - Ryo Fujisawa
- Department of Biology, School of Sciences, Kyushu University, Nishi-Ku, Fukuoka 819-0395, Japan
| | - Toshiki Tsurimoto
- Department of Biology, School of Sciences, Kyushu University, Nishi-Ku, Fukuoka 819-0395, Japan
| | - Junpei Yamamoto
- Division of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Shigenori Iwai
- Division of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Kei Kadoda
- Department of Radiation Genetics, Graduate School of Medicine, Kyoto University, Yoshidakonoe, Sakyo-Ku, Kyoto 606-8501, Japan.,Division of Radiation Life Science, Research Reactor Institute, Kyoto University, Kumatori, Sennan, Osaka 590-0494, Japan
| | - Remi Akagawa
- Department of Radiation Genetics, Graduate School of Medicine, Kyoto University, Yoshidakonoe, Sakyo-Ku, Kyoto 606-8501, Japan
| | - Shar-Yin Naomi Huang
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Yves Pommier
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Julian E Sale
- Medical Research Council Laboratory of Molecular Biology, Cambridge, CB2 0QH, UK
| | - Shunichi Takeda
- Department of Radiation Genetics, Graduate School of Medicine, Kyoto University, Yoshidakonoe, Sakyo-Ku, Kyoto 606-8501, Japan
| | - Kouji Hirota
- Department of Radiation Genetics, Graduate School of Medicine, Kyoto University, Yoshidakonoe, Sakyo-Ku, Kyoto 606-8501, Japan.,Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji-Shi, Tokyo 192-0397, Japan
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