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Zhou B, Qin Y, Zhou J, Ruan J, Xiong F, Dong J, Huang X, Yu Z, Gao S. Bortezomib suppresses self-renewal and leukemogenesis of leukemia stem cell by NF-ĸB-dependent inhibition of CDK6 in MLL-rearranged myeloid leukemia. J Cell Mol Med 2021; 25:3124-3135. [PMID: 33599085 PMCID: PMC7957264 DOI: 10.1111/jcmm.16377] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/31/2021] [Accepted: 02/03/2021] [Indexed: 12/26/2022] Open
Abstract
Acute myeloid leukaemia (AML) with chromosomal rearrangements involving the H3K4 methyltransferase mixed‐lineage leukaemia (MLL) is an aggressive subtype with low overall survival. Bortezomib (Bort) is first applied in multiple myeloma. However, whether bort possesses anti‐self‐renewal and leukemogenesis of leukaemia stem cell (LSC) in AML with MLL rearrangements is still unclear. Here, we found that bort suppressed cell proliferation and decreased colony formation in human and murine leukaemic blasts. Besides, bort reduced the frequency and function of LSC, inhibited the progression, and extended the overall survival in MLL‐AF9 (MF9) ‐transformed leukaemic mice. Furthermore, bort decreased the percentage of human LSC (CD34+CD38‐) cells and extended the overall survival in AML blasts‐xenografted NOD/SCID‐IL2Rγ (NSG) mice. Mechanistically, cyclin dependent kinase 6 (CDK6) was identified as a bort target by RNA sequencing. Bort reduced the expressions of CDK6 by inhibiting NF ĸB recruitment to the promoter of CDK6, leading to the abolishment of NF ĸB DNA‐binding activity for CDK6 promoter. Overexpression of CDK6 partially rescued bort‐induced anti‐leukemogenesis. Most importantly, bort had little side‐effect against the normal haematological stem and progenitor cell (HSPC) and did not affect CDK6 expression in normal HSPC. In conclusion, our results suggest that bort selectively targets LSC in MLL rearrangements. Bort might be a prospective drug for AML patients bearing MLL rearrangements.
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Affiliation(s)
- Bin Zhou
- Laboratory of Internal Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yaqian Qin
- Laboratory of Internal Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jingying Zhou
- Department of Hematology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jichen Ruan
- Department of Hematology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Fang Xiong
- Laboratory of Internal Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jinglai Dong
- Laboratory of Internal Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xingzhou Huang
- Laboratory of Internal Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhijie Yu
- Department of Hematology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shenmeng Gao
- Laboratory of Internal Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Wang G, Ning FY, Wang JH, Yan HM, Kong HW, Zhang YT, Shen Q. Expression of interleukin-32 in bone marrow of patients with myeloma and its prognostic significance. World J Clin Cases 2019; 7:4234-4244. [PMID: 31911904 PMCID: PMC6940335 DOI: 10.12998/wjcc.v7.i24.4234] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 11/14/2019] [Accepted: 11/26/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The guiding effect of prognostic stratification in multiple myeloma (MM) for treatment has been increasingly emphasized in recent years. The stratification of risk factors based on the International Staging System (ISS), Durie-Salmon (DS) staging and related indicators is affected by the renal function of patients, resulting in poor performance. This study assesses the relationship between interleukin-32 (IL-32) and related risk factors in 67 patients with MM and their clinical outcomes.
AIM To investigate the feasibility of IL-32 in evaluating prognosis in patients with MM and the factors influencing prognosis.
METHODS This was a pragmatic, prospective observational study of patients with MM at a single center. According to IL-32 level, patients were divided into two groups. The variables under consideration included age, blood β2-microglobulin, albumin, C-reactive protein, serum calcium, serum creatinine, lactate dehydrogenase, M protein type, ISS stage, DS stage, and IL-32 levels and minimal residual disease (MRD) after induction treatment. The main outcomes were progression-free survival (PFS) and overall survival (OS).
RESULTS IL-32 was an important factor affecting PFS and OS in patients with MM. Compared with patients with IL-32 levels ≥ 856.4 pg/mL, patients with IL-32 levels < 856.4 pg/mL had longer PFS (P = 0.0387) and OS (P = 0.0379); Univariate analysis showed that IL-32 level and MRD were significantly associated with OS and PFS (P < 0.05). Multivariate analysis showed that IL-32 levels ≥ 856.4 pg/mL and MRD positive were still independent risk factors for OS and PFS (P < 0.05).
CONCLUSION IL-32 is valuable for assessing the prognosis of MM patients. IL-32 level combined with MRD may be a useful routine evaluation index for MM patients after treatment.
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Affiliation(s)
- Gang Wang
- Department of Hematology, Quzhou People’s Hospital, Quzhou 324000, Zhejiang Province, China
| | - Fang-Ying Ning
- Department of Hematology, People’s Hospital of Hangzhou Medical College, Zhejiang Provincial People’s Hospital, Hangzhou 310000, Zhejiang Province, China
| | - Jia-Heng Wang
- Department of Hematology, Quzhou People’s Hospital, Quzhou 324000, Zhejiang Province, China
| | - Hai-Meng Yan
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, China
| | - Hong-Wei Kong
- Department of Hematology, Quzhou People’s Hospital, Quzhou 324000, Zhejiang Province, China
| | - Yu-Ting Zhang
- Adicon Clinical Laboratories Inc., Hangzhou 310023, Zhejiang Province, China
| | - Qiang Shen
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, China
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Wang Z, Liu S, Tao Y. Regulation of chromatin remodeling through RNA polymerase II stalling in the immune system. Mol Immunol 2019; 108:75-80. [PMID: 30784765 DOI: 10.1016/j.molimm.2019.02.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 02/13/2019] [Accepted: 02/14/2019] [Indexed: 12/11/2022]
Abstract
RNA polymerase II (Pol II) binds to promoter-proximal regions of inducible target genes that are controlled and not transcribed by several negative elongation factors, which is known as Pol II stalling. The occurrence of stalling is due to particular modification signatures and structural conformations of chromatin that affect Pol II elongation. The existence and physiological importance of Pol II stalling implies that there is a dynamic balance in chromatin regulation prior to endogenous or exogenous stimulation. In this review, we discuss the effects of ATP-dependent chromatin remodeling complexes and histone modification via transcriptional machinery Pol II C-terminal domain phosphorylated at serine 5 (S5P RNAPII) initiation and S2P RNAPII elongation on the expression or silence of specific genes after the production of activated or differentiated signals or cytokines. The response occurs immediately during immune cell development and function, and it also includes the generation of immunological memories. This summary suggests that the host immune response genes involve a novel mechanism of selectively regulatory chromatin remodeling, a fundamental and crucial aspect of epigenetic regulation.
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Affiliation(s)
- Zuli Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China; Key Laboratory of Carcinogenesis, Ministry of Health, Cancer Research Institute, Central South University, 110 Xiangya Road, Changsha, Hunan, 410078, China; Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Shuang Liu
- Institute of Medical Sciences, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China.
| | - Yongguang Tao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China; Key Laboratory of Carcinogenesis, Ministry of Health, Cancer Research Institute, Central South University, 110 Xiangya Road, Changsha, Hunan, 410078, China; Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, Changsha, China.
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Zhang S, Dai H, Zhu L, Lin F, Hu Z, Jing R, Zhang W, Zhao C, Hong X, Zhong JH, Pan L. Microvesicles packaging IL-1β and TNF-α enhance lung inflammatory response to mechanical ventilation in part by induction of cofilin signaling. Int Immunopharmacol 2018; 63:74-83. [DOI: 10.1016/j.intimp.2018.07.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 07/13/2018] [Accepted: 07/26/2018] [Indexed: 12/18/2022]
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Baicalin Downregulates RLRs Signaling Pathway to Control Influenza A Virus Infection and Improve the Prognosis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:4923062. [PMID: 29681974 PMCID: PMC5846362 DOI: 10.1155/2018/4923062] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 01/23/2018] [Indexed: 12/31/2022]
Abstract
The objective of this study is to investigate the effects of baicalin on controlling the pulmonary infection and improving the prognosis in influenza A virus (IAV) infection. PCR and western blot were used to measure the changes of some key factors in RLRs signaling pathway. MSD electrochemiluminescence was used to measure the expression of pulmonary inflammatory cytokines including IFN-γ, TNF-α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-10, IL-12p70, and KC/GRO. Flow cytometry was used to detect the proportion of Th1, Th2, Th17, and Treg. The results showed that IAV infection led to low body weight and high viral load and high expression of RIG-I, IRF3, IRF7, and NF-κB mRNA, as well as RIG-I and NF-κB p65 protein. However, baicalin reduced the rate of body weight loss, inhibited virus replication, and downregulated the key factors of the RLRs signaling pathway. Besides, baicalin reduced the high expression inflammatory cytokines in lung and decreased the ratios of Th1/Th2 and Th17/Treg to arouse a brief but not overviolent inflammatory response. Therefore, baicalin activated a balanced host inflammatory response to limit immunopathologic injury, which was helpful to the improvement of clinical and survival outcomes.
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Jiang L, Song J, Hu X, Zhang H, Huang E, Zhang Y, Deng F, Wu X. The Proteasome Inhibitor Bortezomib Inhibits Inflammatory Response of Periodontal Ligament Cells and Ameliorates Experimental Periodontitis in Rats. J Periodontol 2017; 88:473-483. [DOI: 10.1902/jop.2016.160396] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Lin Jiang
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, College of Stomatology, Chongqing Medical University
- Department of Preventive Dentistry, College of Stomatology, Chongqing Medical University
| | - Jinlin Song
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, College of Stomatology, Chongqing Medical University
- Department of Orthodontics, College of Stomatology, Chongqing Medical University
| | - Xiaolei Hu
- Key Laboratory of Clinical Laboratory Science, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University
| | - Hongmei Zhang
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, College of Stomatology, Chongqing Medical University
| | - Enyi Huang
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, College of Stomatology, Chongqing Medical University
| | - Yan Zhang
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, College of Stomatology, Chongqing Medical University
| | - Feng Deng
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, College of Stomatology, Chongqing Medical University
- Department of Orthodontics, College of Stomatology, Chongqing Medical University
| | - Xiaomian Wu
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, College of Stomatology, Chongqing Medical University
- Department of Orthodontics, College of Stomatology, Chongqing Medical University
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Fann DYW, Ng GYQ, Poh L, Arumugam TV. Positive effects of intermittent fasting in ischemic stroke. Exp Gerontol 2017; 89:93-102. [PMID: 28115234 DOI: 10.1016/j.exger.2017.01.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 12/26/2016] [Accepted: 01/18/2017] [Indexed: 12/18/2022]
Abstract
Intermittent fasting (IF) is a dietary protocol where energy restriction is induced by alternate periods of ad libitum feeding and fasting. Prophylactic intermittent fasting has been shown to extend lifespan and attenuate the progress and severity of age-related diseases such as cardiovascular (e.g. stroke and myocardial infarction), neurodegenerative (e.g. Alzheimer's disease and Parkinson's disease) and cancerous diseases in animal models. Stroke is the second leading cause of death, and lifestyle risk factors such as obesity and physical inactivity have been associated with elevated risks of stroke in humans. Recent studies have shown that prophylactic IF may mitigate tissue damage and neurological deficit following ischemic stroke by a mechanism(s) involving suppression of excitotoxicity, oxidative stress, inflammation and cell death pathways in animal stroke models. This review summarizes data supporting the potential hormesis mechanisms of prophylactic IF in animal models, and with a focus on findings from animal studies of prophylactic IF in stroke in our laboratory.
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Affiliation(s)
- David Yang-Wei Fann
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Gavin Yong Quan Ng
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Luting Poh
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Thiruma V Arumugam
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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Abstract
PURPOSE To compare the antiangiogenic effects of tacrolimus and bevacizumab on corneal neovascularization (CNV) in rabbits. METHODS Neovascularization was induced in 32 eyes of 16 rabbits by placing a suture in the corneal stroma. Seven days after suture placement, all rabbits were divided into 4 groups and were treated subconjunctivally with bevacizumab (AVA_sub) 0.05 mL (5 mg/0.05 mL), tacrolimus (TAC_sub) 0.05 mL (0.25 mg/0.05 mL), balanced salt solution (0.05 mL was subconjunctivally injected in 1 eye of each rabbit and applied by eye drops in the other eyes, control group), and tacrolimus eye drops (TAC_drop) (5 mg/5 mL applied 4 times daily). Digital photographs were obtained and surface area of CNV was measured 7 days after subconjunctival injections. Corneal specimens were analyzed histopathologically and were used to measure the concentration of vascular endothelial growth factor (VEGF), tumor necrosis factor alpha (TNF-α), interferon gamma (IFN-γ), interleukin-1 beta (IL-1β), and monocyte chemoattractant protein 1 mRNA by reverse transcription polymerase chain reaction. RESULTS In digital photographs, the neovascularized area was decreased in all treatment groups (AVA_sub, 0.58; TAC_sub, 0.60; TAC_drop, 0.68) compared with the control group (balanced salt solution, 0.81). Histological examination showed markedly regressed new vessels in treatment groups, and immunohistochemical staining revealed weakly stained anti-VEGF and anti-F4/80 antibodies in treatment groups. In semiquantitative reverse transcription polymerase chain reaction, concentration of VEGF (AVA_sub, 0.24; TAC_drop, 0.18), TNF-α (AVA_sub, 0.19; TAC_sub, 0.24; TAC_drop 0.15), and IL-1β (AVA_sub, 0.19; TAC_sub, 0.33; TAC_drop, 0.18) mRNA were significantly lower in treatment groups than in the control group (VEGF, 0.47; TNF-α, 0.44; IL-1β, 0.87) (P < 0.05). CONCLUSIONS Topical and subconjunctival tacrolimus application may be useful in reducing CNV and have comparable effects to subconjunctival bevacizumab injection.
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Sanacora S, Urdinez J, Chang TP, Vancurova I. Anticancer drug bortezomib increases interleukin-8 expression in human monocytes. Biochem Biophys Res Commun 2015; 460:375-9. [PMID: 25791477 DOI: 10.1016/j.bbrc.2015.03.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 03/08/2015] [Indexed: 10/23/2022]
Abstract
Bortezomib (BZ) is the first clinically approved proteasome inhibitor that has shown remarkable anticancer activity in patients with hematological malignancies. However, many patients relapse and develop resistance; yet, the molecular mechanisms of BZ resistance are not fully understood. We have recently shown that in solid tumors, BZ unexpectedly increases expression of the pro-inflammatory and pro-angiogenic chemokine interleukin-8 (IL-8), while it inhibits expression of other NFκB-regulated genes. Since monocytes and macrophages are major producers of IL-8, the goal of this study was to test the hypothesis that BZ increases the IL-8 expression in human monocytes and macrophages. Here, we show that BZ dramatically increases the IL-8 expression in lipopolysaccharide (LPS)-stimulated U937 macrophages as well as in unstimulated U937 monocytes and peripheral blood mononuclear cells, while it inhibits expression of IL-6, IL-1 and tumor necrosis factor-α. In addition, our results show that the underlying mechanisms involve p38 mitogen-activated protein kinase, which is required for the BZ-induced IL-8 expression. Together, these data suggest that the BZ-increased IL-8 expression in monocytes and macrophages may represent one of the mechanisms responsible for the BZ resistance and indicate that targeting the p38-mediated IL-8 expression could enhance the BZ effectiveness in cancer treatment.
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Affiliation(s)
- Shannon Sanacora
- Department of Biological Sciences, St. John's University, New York, NY 11439, USA
| | - Joaquin Urdinez
- Department of Biological Sciences, St. John's University, New York, NY 11439, USA
| | - Tzu-Pei Chang
- Department of Biological Sciences, St. John's University, New York, NY 11439, USA
| | - Ivana Vancurova
- Department of Biological Sciences, St. John's University, New York, NY 11439, USA.
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