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Wang X, Liu X, Wang H. Combination regimen of granulocyte colony-stimulating factor and recombinant human thrombopoietin improves the curative effect on elderly patients with leukemia through inducing pyroptosis and ferroptosis of leukemia cells. Cancer Gene Ther 2022; 29:1742-1750. [PMID: 35768562 PMCID: PMC9663303 DOI: 10.1038/s41417-022-00497-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 05/10/2022] [Accepted: 06/14/2022] [Indexed: 02/04/2023]
Abstract
Leukemia ranks as the one of most common causes of death from tumor. 51.4% of patients with leukemia are over 65 years old. However, the median overall survival (OS) of elderly leukemia patients is less than one year. It is urgent to explore more effective treatments for elderly patients with leukemia. Our recent prospective phase II single-arm study has revealed that combination regimen of granulocyte colony-stimulating factor (G-CSF) and recombinant human thrombopoietin (rhTPO) could improve the curative effect on elderly patients with leukemia, yet the precise mechanism remains unknown. This study demonstrated that combination of G-CSF and rhTPO showed greater effect on suppressing leukemia growth than G-CSF or rhTPO alone in vitro and in vivo. Mechanistically, G-CSF induced pyroptosis through ELANE in leukemia cells. Besides, rhTPO triggered ferroptosis by EP300 in leukemia cells. Moreover, rhTPO suppressed glutathione peroxidase 4 (GPX4) expression to induce ferroptosis through blocking the interaction between EP300 and GPX4 gene promoter via associating with EP300. In summary, this study illuminated that combination regimen of G-CSF and rhTPO improved the curative effect on elderly patients with leukemia through inducing pyroptosis and ferroptosis of leukemia cells. Therefore, our results provided a theoretical basis for combination regimen of G-CSF and rhTPO treating leukemia and potential therapeutic targets for leukemia.
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Affiliation(s)
- Xiaobin Wang
- grid.412449.e0000 0000 9678 1884Department of Hematology, Shengjing Hospital, China Medical University, Shenyang, Liaoning 110035 China
| | - Xiaoyu Liu
- grid.412449.e0000 0000 9678 1884Department of Hematology, Shengjing Hospital, China Medical University, Shenyang, Liaoning 110035 China
| | - Huihan Wang
- grid.412449.e0000 0000 9678 1884Department of Hematology, Shengjing Hospital, China Medical University, Shenyang, Liaoning 110035 China
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Minimally myelosuppressive regimen for remission induction in pediatric AML: long-term results of an observational study. Blood Adv 2021; 5:1837-1847. [PMID: 33787864 DOI: 10.1182/bloodadvances.2020003453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 02/16/2021] [Indexed: 11/20/2022] Open
Abstract
Treatment refusal and death as a result of toxicity account for most treatment failures among children with acute myeloid leukemia (AML) in resource-constrained settings. We recently reported the results of treating children with AML with a combination of low-dose cytarabine and mitoxantrone or omacetaxine mepesuccinate with concurrent granulocyte colony-stimulating factor (G-CSF) (low-dose chemotherapy [LDC]) for remission induction followed by standard postremission strategies. We have now expanded the initial cohort and have provided long-term follow-up. Eighty-three patients with AML were treated with the LDC regimen. During the study period, another 100 children with AML received a standard-dose chemotherapy (SDC) regimen. Complete remission was attained in 88.8% and 86.4% of patients after induction in the LDC and SDC groups, respectively (P = .436). Twenty-two patients in the LDC group received SDC for the second induction course. Significantly more high-risk AML patients were treated with the SDC regimen (P = .035). There were no significant differences between the LDC and SDC groups in 5-year event-free survival (61.4% ± 8.7% vs 65.2% ± 7.4%, respectively; P = .462), overall survival (72.7% ± 6.9% vs 72.5% ± 6.2%, respectively; P = .933), and incidence of relapse (20.5% ± 4.5% vs 17.6% ± 3.9%, respectively; P = .484). Clearance of mutations based on the average variant allele frequency at complete remission in the LDC and SDC groups was 1.9% vs 0.6% (P < .001) after induction I and 0.17% vs 0.078% (P = .052) after induction II. In conclusion, our study corroborated the high remission rate reported for children with AML who received at least 1 course of LDC. The results, although preliminary, also suggest that long-term survival of these children is comparable to that of children who receive SDC regimens.
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Sun F, Li N, Tong X, Zeng J, He S, Gai T, Bai Y, Liu L, Lu K, Shen J, Han M, Lu C, Dai F. Ara-c induces cell cycle G1/S arrest by inducing upregulation of the INK4 family gene or directly inhibiting the formation of the cell cycle-dependent complex CDK4/cyclin D1. Cell Cycle 2019; 18:2293-2306. [PMID: 31322047 DOI: 10.1080/15384101.2019.1644913] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Cytosine arabinoside (Ara-c) is a pyrimidine anti-metabolite that is capable of interfering with cellular proliferation by inhibiting DNA synthesis. Each inhibitor of cyclin-dependent kinase 4 (INK4) family member has the ability to bind to cyclin-dependent kinase 4 (CDK4) and inhibit the formation of the cell cycle-dependent CDK4/cyclin D1 complex, subsequently leading to cell cycle arrest in the G1/S phase. In this study, the expression of INK4 family genes in kidney cancer and the impact of these genes on patient prognosis were examined. Additionally, the effects of INK4 family genes and Ara-c on cell proliferation and tumor formation and development were examined. Finally, a potential association between Ara-c-induced cell cycle arrest and INK4-associated gene expression was evaluated. An upregulation of INK4 family genes was found to be positively correlated with the prognosis of patients with kidney cancer. Both the INK4 family genes and Ara-c were shown to induce cell cycle arrest and inhibit tumor formation and development. Moreover, Ara-c-induced cell cycle arrest was found to be associated with an Ara-c-induced upregulation of INK4 family gene expression, which ultimately inhibited the formation of the CDK4/cyclin D1 complex. These findings suggested that an upregulation of INK4 family genes has a positive effect on kidney cancer prognosis and can inhibit the formation and development of tumors. Moreover, Ara-c was shown to promote the upregulation of INK4 family genes, at the same time, Ara-c could directly regulate the cell cycle-dependent genes CDK4 and cyclin D1 (CCND1), independent of the INK4 family genes.
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Affiliation(s)
- Fuze Sun
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University , Chongqing , China
| | - Niannian Li
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University , Chongqing , China
| | - Xiaoling Tong
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University , Chongqing , China
| | - Jie Zeng
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University , Chongqing , China
| | - Songzhen He
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University , Chongqing , China
| | - Tingting Gai
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University , Chongqing , China
| | - Yanmin Bai
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University , Chongqing , China
| | - Lanlan Liu
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University , Chongqing , China
| | - Kunpeng Lu
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University , Chongqing , China
| | - Jianghong Shen
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University , Chongqing , China
| | - Minjin Han
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University , Chongqing , China
| | - Cheng Lu
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University , Chongqing , China
| | - Fangyin Dai
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University , Chongqing , China
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Peng W. Neuroprotective effects of G-CSF administration in microglia-mediated reactive T cell activation in vitro. Immunol Res 2018. [PMID: 28646409 DOI: 10.1007/s12026-017-8928-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
G-CSF is a growth factor that has known neuroprotective effects in a variety of experimental brain injury models. As both antigen-presenting microglia and reactive T cells are key components in the development and progression of EAE, the aim of this study is to investigate the neuroprotective effects of recombinant human G-CSF, as administered in microglia-mediated reactive T cell assay in vitro. Our results indicate that G-CSF treatment has no apparent effect for the resting un-activated microglia. G-CSF pre-protection of microglia increased protective cytokine IL-4 production and effectively inhibited the productions of NO and other inflammatory mediators (IFN-γ, TNF-α, IL-1β, IL-17, and chemokine MCP-1) after LPS stimulation. G-CSF suppressed the proliferative response of microglia-mediated MOG35-55 reactive T cells. G-CSF-microglia-T cells increased IL-4 and IL-10 secretions and decreased IFN-γ, TNF-α, and IL-17 productions. G-CSF significantly elevated CD4+CD25+ regulatory T cell subset in microglia-mediated reactive T cells. Moreover, G-CSF inhibited MHC-II expression of microglia after LPS activation or in the interactions of microglia and reactive T cells. G-CSF administration induced the apoptosis and enhanced the G0/G1 to S phase transition and elevated the gene expression of apoptosis markers in microglia-mediated reactive T cells after stimulated by specific antigen MOG35-55. These findings reveal that G-CSF administration potently neuroprotects the central nervous system (CNS) from immune-mediated damage in microglia-mediated reactive T cell activation. Apoptosis of reactive T cells in CNS is important in attenuating the development of autoimmune CNS diseases. G-CSF administration has neuroprotective effects in CNS and the potential to be a therapeutic agent in multiple sclerosis.
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Affiliation(s)
- Wei Peng
- Institute of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, 637000, People's Republic of China. .,Laboratory of Experimental Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, Sderot Churchill, Jerusalem, 91240, Israel.
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Shen Y, He A, Wang F, Bai J, Wang J, Zhao W, Zhang W, Cao X, Chen Y, Liu J, Ma X, Chen H, Feng Y, Yang Y. Granulocyte colony stimulating factor priming chemotherapy is more effective than standard chemotherapy as salvage therapy in relapsed acute myeloid leukemia. Med Clin (Barc) 2017; 151:339-344. [PMID: 29292108 DOI: 10.1016/j.medcli.2017.11.027] [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] [Received: 03/09/2017] [Revised: 10/07/2017] [Accepted: 11/02/2017] [Indexed: 01/02/2023]
Abstract
INTRODUCTION AND OBJECTIVE To improve the complete remission (CR) rate of newly diagnosed acute myeloid leukemia (AML) patients and alleviate the severe side effects of double induction chemotherapy, we combined a standard regimen with granulocyte colony-stimulating factor (G-CSF) priming chemotherapy to compose a new double induction regimen for AML patients who failed to achieve CR after the first course. PATIENTS AND METHODS Ninety-seven patients with AML who did not achieve CR after the first course of standard chemotherapy were enrolled. Among them, 45 patients received G-CSF priming combined with low-dose chemotherapy during days 20-22 of the first course of chemotherapy, serving as priming group, 52 patients were administered standard chemotherapy again, serving as control group. RESULTS Between the two groups there were no differences in the French-American-British (FAB) classification, risk status, the first course of chemotherapy, blood cell count or blasts percentage of bone marrow before the second course. But the CR rate was significantly higher and the adverse effect was much lower in the priming group than the control group. Cox multivariate regression analysis showed that WBC level before the second course and the selection of the second chemotherapy regimen were two independent factors for long survival of patients. DISCUSSION These results elucidate that standard chemotherapy followed by G-CSF priming new double induction chemotherapy is an effective method for AML patients to improve CR rate and reduce adverse effects.
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Affiliation(s)
- Ying Shen
- Department of Hematology, Second Affiliated Hospital, Xi'an Jiaotong University, 710004 Xi'an, Shaanxi, China
| | - Aili He
- Department of Hematology, Second Affiliated Hospital, Xi'an Jiaotong University, 710004 Xi'an, Shaanxi, China; National-Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, 710004 Xi'an, Shaanxi, China
| | - Fangxia Wang
- Department of Hematology, Second Affiliated Hospital, Xi'an Jiaotong University, 710004 Xi'an, Shaanxi, China
| | - Ju Bai
- Department of Hematology, Second Affiliated Hospital, Xi'an Jiaotong University, 710004 Xi'an, Shaanxi, China
| | - Jianli Wang
- Department of Hematology, Second Affiliated Hospital, Xi'an Jiaotong University, 710004 Xi'an, Shaanxi, China
| | - Wanhong Zhao
- Department of Hematology, Second Affiliated Hospital, Xi'an Jiaotong University, 710004 Xi'an, Shaanxi, China
| | - Wanggang Zhang
- Department of Hematology, Second Affiliated Hospital, Xi'an Jiaotong University, 710004 Xi'an, Shaanxi, China
| | - Xingmei Cao
- Department of Hematology, Second Affiliated Hospital, Xi'an Jiaotong University, 710004 Xi'an, Shaanxi, China
| | - Yinxia Chen
- Department of Hematology, Second Affiliated Hospital, Xi'an Jiaotong University, 710004 Xi'an, Shaanxi, China
| | - Jie Liu
- Department of Hematology, Second Affiliated Hospital, Xi'an Jiaotong University, 710004 Xi'an, Shaanxi, China
| | - Xiaorong Ma
- Department of Hematology, Second Affiliated Hospital, Xi'an Jiaotong University, 710004 Xi'an, Shaanxi, China
| | - Hongli Chen
- Department of Hematology, Second Affiliated Hospital, Xi'an Jiaotong University, 710004 Xi'an, Shaanxi, China
| | - Yuandong Feng
- Department of Hematology, Second Affiliated Hospital, Xi'an Jiaotong University, 710004 Xi'an, Shaanxi, China
| | - Yun Yang
- Department of Hematology, Second Affiliated Hospital, Xi'an Jiaotong University, 710004 Xi'an, Shaanxi, China.
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Peng W. G-CSF treatment promotes apoptosis of autoreactive T cells to restrict the inflammatory cascade and accelerate recovery in experimental allergic encephalomyelitis. Exp Neurol 2017; 289:73-84. [DOI: 10.1016/j.expneurol.2016.10.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 09/29/2016] [Accepted: 10/18/2016] [Indexed: 12/11/2022]
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Shen ZH, Zeng DF, Ma YY, Zhang X, Zhang C, Kong PY. Are there any new insights for G-CSF and/or AMD3100 in chemotherapy of haematological malignants? Med Oncol 2015; 32:262. [PMID: 26526720 DOI: 10.1007/s12032-015-0705-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 09/22/2015] [Indexed: 01/23/2023]
Abstract
AML is a common life-threatening blood system malignancy. The treatment of AML continues to face greater challenges. An abnormal haematopoietic niche with high adhesion and proliferation might be the root cause of resistance and relapse. Most leukaemia cells are stored in the endosteal niche and recess in the G0 phase, and they are not sensitive to varieties of radiotherapies and chemotherapies. G-CSF and AMD3100 are increasingly used in priming chemotherapy. G-CSF can promote leukaemia cells to the cell cycle, which improves the complete remission rate of leukaemia patients. AMD3100, the novel CXCR4 antagonist, could also potentially promote leukaemia cells to cell cycle and improve the susceptibility of leukaemia cells to chemotherapeutic agents. The combination of them enhances anti-leukaemia effect. So in this review, we explore the function of G-CSF and/or AMD3100 in the priming chemotherapy of haematological malignants.
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Affiliation(s)
- Zhao-Hua Shen
- Department of Hematology, Xinqiao Hospital, The Third Military Medical University, Chongqing, 400037, People's Republic of China
| | - Dong-Feng Zeng
- Department of Hematology, Xinqiao Hospital, The Third Military Medical University, Chongqing, 400037, People's Republic of China
| | - Ying-Ying Ma
- Department of Hematology, Xinqiao Hospital, The Third Military Medical University, Chongqing, 400037, People's Republic of China
| | - Xi Zhang
- Department of Hematology, Xinqiao Hospital, The Third Military Medical University, Chongqing, 400037, People's Republic of China
| | - Cheng Zhang
- Department of Hematology, Xinqiao Hospital, The Third Military Medical University, Chongqing, 400037, People's Republic of China
| | - Pei-Yan Kong
- Department of Hematology, Xinqiao Hospital, The Third Military Medical University, Chongqing, 400037, People's Republic of China.
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Stevens AM, Ruiz MJ, Gerbing RB, Alonzo TA, Gamis AS, Redell MS. Ligand-induced STAT3 signaling increases at relapse and is associated with outcome in pediatric acute myeloid leukemia: a report from the Children's Oncology Group. Haematologica 2015; 100:e496-500. [PMID: 26294728 DOI: 10.3324/haematol.2015.131508] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Alexandra M Stevens
- Division of Pediatric Hematology/Oncology, Baylor College of Medicine, Houston, TX, USA
| | - Marcos J Ruiz
- Division of Pediatric Hematology/Oncology, Baylor College of Medicine, Houston, TX, USA
| | | | - Todd A Alonzo
- Department of Preventive Medicine, University of Southern California, Los Angeles, CA, USA
| | - Alan S Gamis
- Children's Mercy Hospitals and Clinics, Kansas City, MO, USA
| | - Michele S Redell
- Division of Pediatric Hematology/Oncology, Baylor College of Medicine, Houston, TX, USA
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Inagaki T, Iwasaki S, Matsumura Y, Kawamura T, Tanaka T, Abe Y, Yamasaki A, Tsurutani Y, Yoshida A, Chikaoka Y, Nakamura K, Magoori K, Nakaki R, Osborne TF, Fukami K, Aburatani H, Kodama T, Sakai J. The FBXL10/KDM2B scaffolding protein associates with novel polycomb repressive complex-1 to regulate adipogenesis. J Biol Chem 2014; 290:4163-77. [PMID: 25533466 DOI: 10.1074/jbc.m114.626929] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Polycomb repressive complex 1 (PRC1) plays an essential role in the epigenetic repression of gene expression during development and cellular differentiation via multiple effector mechanisms, including ubiquitination of H2A and chromatin compaction. However, whether it regulates the stepwise progression of adipogenesis is unknown. Here, we show that FBXL10/KDM2B is an anti-adipogenic factor that is up-regulated during the early phase of 3T3-L1 preadipocyte differentiation and in adipose tissue in a diet-induced model of obesity. Interestingly, inhibition of adipogenesis does not require the JmjC demethylase domain of FBXL10, but it does require the F-box and leucine-rich repeat domains, which we show recruit a noncanonical polycomb repressive complex 1 (PRC1) containing RING1B, SKP1, PCGF1, and BCOR. Knockdown of either RING1B or SKP1 prevented FBXL10-mediated repression of 3T3-L1 preadipocyte differentiation indicating that PRC1 formation mediates the inhibitory effect of FBXL10 on adipogenesis. Using ChIP-seq, we show that FBXL10 recruits RING1B to key specific genomic loci surrounding the key cell cycle and the adipogenic genes Cdk1, Uhrf1, Pparg1, and Pparg2 to repress adipogenesis. These results suggest that FBXL10 represses adipogenesis by targeting a noncanonical PRC1 complex to repress key genes (e.g. Pparg) that control conversion of pluripotent cells into the adipogenic lineage.
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Affiliation(s)
- Takeshi Inagaki
- From the Division of Metabolic Medicine, the Translational Systems Biology and Medicine Initiative Center for Disease Biology and Integrative Medicine, University of Tokyo, Tokyo 153-8904, Japan,
| | | | | | - Takeshi Kawamura
- the Translational Systems Biology and Medicine Initiative Center for Disease Biology and Integrative Medicine, University of Tokyo, Tokyo 153-8904, Japan, Laboratory for Systems Biology and Medicine
| | - Toshiya Tanaka
- From the Division of Metabolic Medicine, the Translational Systems Biology and Medicine Initiative Center for Disease Biology and Integrative Medicine, University of Tokyo, Tokyo 153-8904, Japan, Laboratory for Systems Biology and Medicine
| | - Yohei Abe
- From the Division of Metabolic Medicine
| | | | | | - Ayano Yoshida
- From the Division of Metabolic Medicine, the Laboratory of Genome and Biosignals, Tokyo University of Pharmacy and Life Science, Tokyo 192-0392, Japan
| | - Yoko Chikaoka
- the Translational Systems Biology and Medicine Initiative Center for Disease Biology and Integrative Medicine, University of Tokyo, Tokyo 153-8904, Japan, Laboratory for Systems Biology and Medicine
| | - Kanako Nakamura
- From the Division of Metabolic Medicine, the Laboratory of Genome and Biosignals, Tokyo University of Pharmacy and Life Science, Tokyo 192-0392, Japan
| | - Kenta Magoori
- From the Division of Metabolic Medicine, the Translational Systems Biology and Medicine Initiative Center for Disease Biology and Integrative Medicine, University of Tokyo, Tokyo 153-8904, Japan
| | - Ryo Nakaki
- Genome Science Division, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo 153-8904, Japan
| | - Timothy F Osborne
- the Metabolic Disease Program, Sanford-Burnham Medical Research Institute, Orlando, Florida 32827, and
| | - Kiyoko Fukami
- the Laboratory of Genome and Biosignals, Tokyo University of Pharmacy and Life Science, Tokyo 192-0392, Japan
| | - Hiroyuki Aburatani
- the Translational Systems Biology and Medicine Initiative Center for Disease Biology and Integrative Medicine, University of Tokyo, Tokyo 153-8904, Japan, Genome Science Division, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo 153-8904, Japan
| | | | - Juro Sakai
- From the Division of Metabolic Medicine, the Translational Systems Biology and Medicine Initiative Center for Disease Biology and Integrative Medicine, University of Tokyo, Tokyo 153-8904, Japan,
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Roles of bone-marrow-derived cells and inflammatory cytokines in neointimal hyperplasia after vascular injury. BIOMED RESEARCH INTERNATIONAL 2014; 2014:945127. [PMID: 24551856 PMCID: PMC3914557 DOI: 10.1155/2014/945127] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 11/22/2013] [Accepted: 12/21/2013] [Indexed: 12/30/2022]
Abstract
Bone-marrow-derived cells can generate vascular progenitor cells that contribute to pathological remodeling in models of restenosis after percutaneous coronary intervention (PCI). We created models of vascular injury in mice with bone marrow transplants (BMT) to determine relationships between bone-marrow-derived cells and subsequent biological factors. Mesenchymal stromal cells (MSCs) seemed to inhibit the inflammatory reaction and help stabilize injured vascular regions through mobilizing more endogenous bone-marrow-derived (EBMD) cells to the peripheral circulation. Granulocyte-colony stimulating factor (G-CSF) mobilized more EBMD cells to the peripheral circulation, and they accumulated on the injured side of the vascular lumen. The inflammatory cytokines, tumor necrosis factor (TNF)-alpha, and interleukin (IL)-6 mobilized EBMD cells that play an important role in the process of neointimal hyperplasia after vascular injury. These factors might comprise a mechanism that alters the transdifferentiation or paracrine capabilities of EBMD cells and are potential targets of treatment for patients with cardiovascular diseases.
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Badano MN, Camicia GL, Lombardi G, Maglioco A, Cabrera G, Costa H, Meiss RP, Piazzon I, Nepomnaschy I. B-cell lymphopoiesis is regulated by cathepsin L. PLoS One 2013; 8:e61347. [PMID: 23585893 PMCID: PMC3621861 DOI: 10.1371/journal.pone.0061347] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Accepted: 03/06/2013] [Indexed: 11/18/2022] Open
Abstract
Cathepsin L (CTSL) is a ubiquitously expressed lysosomal cysteine peptidase with diverse and highly specific functions. The involvement of CTSL in thymic CD4+ T-cell positive selection has been well documented. Using CTSLnkt/nkt mice that lack CTSL activity, we have previously demonstrated that the absence of CTSL activity affects the homeostasis of the T-cell pool by decreasing CD4+ cell thymic production and increasing CD8+ thymocyte production. Herein we investigated the influence of CTSL activity on the homeostasis of peripheral B-cell populations and bone marrow (BM) B-cell maturation. B-cell numbers were increased in lymph nodes (LN), spleen and blood from CTSLnkt/nkt mice. Increases in splenic B-cell numbers were restricted to transitional T1 and T2 cells and to the marginal zone (MZ) cell subpopulation. No alterations in the proliferative or apoptosis levels were detected in peripheral B-cell populations from CTSLnkt/nkt mice. In the BM, the percentage and the absolute number of pre-pro-B, pro-B, pre-B, immature and mature B cells were not altered. However, in vitro and in vivo experiments showed that BM B-cell production was markedly increased in CTSLnkt/nkt mice. Besides, BM B-cell emigration to the spleen was increased in CTSLnkt/nkt mice. Colony-forming unit pre-B (CFU pre-B) assays in the presence of BM stromal cells (SC) and reciprocal BM chimeras revealed that both BM B-cell precursors and SC would contribute to sustain the increased B-cell hematopoiesis in CTSLnkt/nkt mice. Overall, our data clearly demonstrate that CTSL negatively regulates BM B-cell production and output therefore influencing the homeostasis of peripheral B cells.
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Affiliation(s)
- Maria Noel Badano
- Laboratorio de Inmunología Experimental, Instituto de Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Gabriela Lorena Camicia
- Laboratorio de Inmunología Experimental, Instituto de Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Gabriela Lombardi
- Laboratorio de Inmunofarmacología Tumoral, Centro de Estudios Farmacológicos y Botánicos, Consejo Nacional de Investigaciones Científicas y Técnicas, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Andrea Maglioco
- Laboratorio de Inmunología Experimental, Instituto de Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Gabriel Cabrera
- Laboratorio de Inmunología Experimental, Instituto de Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Hector Costa
- Laboratorio de Inmunología Experimental, Instituto de Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Roberto Pablo Meiss
- Centro de Estudios Oncológicos, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Isabel Piazzon
- Laboratorio de Inmunología Experimental, Instituto de Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Irene Nepomnaschy
- Laboratorio de Inmunología Experimental, Instituto de Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas, Academia Nacional de Medicina, Buenos Aires, Argentina
- * E-mail:
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Etoposide and Hypoxia Do Not Activate Apoptosis of Multipotent Mesenchymal Stromal Cells In Vitro. Bull Exp Biol Med 2012; 154:141-4. [DOI: 10.1007/s10517-012-1895-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Bai Q, An J, Wu X, You H, Ma H, Liu T, Gao N, Jia J. HBV promotes the proliferation of hepatic stellate cells via the PDGF-B/PDGFR-β signaling pathway in vitro. Int J Mol Med 2012; 30:1443-50. [PMID: 23042547 DOI: 10.3892/ijmm.2012.1148] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Accepted: 07/10/2012] [Indexed: 12/25/2022] Open
Abstract
The activation of hepatic stellate cells (HSCs) is closely associated with liver fibrosis in chronic hepatitis B virus (HBV) infection. However, the molecular mechanisms leading to HSC activation remain unclear. It has been reported that the platelet-derived growth factor-B (PDGF-B)/PDGF receptor-β (PDGFR-β) signaling pathway is involved in this process. Thus, we investigated whether HBV and its protein contribute to HSC proliferation by the PDGF-B/PDGFR-β signaling pathway. HBV particles were purified from the supernatant of HepG2.2.15 cells by ultracentrifugation and the cell lines carrying HBV preS, e, c or x genes were obtained. After incubation with HBV particles or co-cultured with the cell lines expressed in the viral protein, the proliferation of LX-2 cells, an HSC cell line, were detected by flow cyto-metry and real-time PCR and the expression of molecules related to the PDGF-B/PDGFR-β signaling pathway were further measured. Our results indicated that HBV particles, c and x proteins promoted LX-2 proliferation and increased the mRNA levels of PDGF-B, PDGFR-β, collagen-I and α-smooth muscle actin (α-SMA), as well as the phosphorylation of PDGFR-β; however, the expression protein levels of PDGF-B and PDGFR-β remained unchanged. In conclusion, HBV particles and HBV c and x proteins promote HSC proliferation and fibrogenesis in vitro and the PDGF-B/PDGFR-β signaling pathway is important in this process.
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Affiliation(s)
- Qixuan Bai
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, P.R. China
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Izdebska M, Grzanka D, Gagat M, Gackowska L, Grzanka A. The effect of G-CSF on F-actin reorganization in HL-60 and K562 cell lines. Oncol Rep 2012; 28:2138-48. [PMID: 23023325 DOI: 10.3892/or.2012.2061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Accepted: 06/06/2012] [Indexed: 11/05/2022] Open
Abstract
The aim of this investigation was to show the influence of G-CSF (G-CSF) on the F-actin cytoskeleton and the morphology of G-CSFR-proficient HL-60 and G-CSFR-deficient K562 cell lines. In the present study, we show changes in F-actin distribution in HL-60 cells after treatment with 5 and 10 ng/ml concentration of G-CSF but also changes in the organization and fluorescence intensity of F-actin in the K562 cell line. After treatment of HL-60 cells with 5 ng/ml concentration of G-CSF we observed an increase in F-actin levels. Additionally, a higher labeling of nuclear F-actin under TEM was observed. Moreover, changes in the cell cycle indicate cell differentiation. On the other hand, in the K562 cell line we observed an increase in the percentage sub-G1 cells following treatment with both concentration of G-CSF. Furthermore, an increase in the percentage of late apoptotic cells after G-CSF treatment was observed. A statistically significant difference in the cytoplasmic F-actin levels was not detected, but nuclear levels were decreased. In conclusion, we suggest that the G-CSF-based reorganization of actin filaments in HL-60 cells is involved in the differentiation process. Moreover, we suggest that the G-CSF-induced changes observed in K562 cells are associated with a G-CSF receptor-independent pathway or its binding to other similar receptors.
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Affiliation(s)
- Magdalena Izdebska
- Department of Histology and Embryology, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, 85-092 Bydgoszcz, Poland
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