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Wei D, Liang X, Huang M, Wang C, Ye Z, Zhang T, Zhang J. Targeting histone deacetylase 1 (HDAC1) in the bone marrow stromal cells revers imatinib resistance by modulating IL-6 in Ph + acute lymphoblastic leukemia. Ann Hematol 2024; 103:3015-3027. [PMID: 38847852 DOI: 10.1007/s00277-024-05830-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 05/31/2024] [Indexed: 07/28/2024]
Abstract
Bone marrow stromal cells (BMSCs) can promote the growth of Philadelphia chromosome-positive (Ph+) acute lymphoblastic leukemia (ALL). Histone deacetylases (HDACs) play essential roles in the proliferation and apoptosis resistance of Ph + ALL cells. In our previous study, inhibiting histone deacetylase 1 (HDAC1) decreases the proliferation of Ph + ALL cells. However, little is known regarding how HDAC1 in BMSCs of Ph + ALL patients affects the imatinib (IM) resistance. Therefore, the present work examined the roles of HDAC1 in BMSCs. Overexpression of HDAC1 was found in BMSCs of Ph + ALL patients with IM resistance. In addition, the Ph + ALL cell line SUP-B15 was co-cultured with BMSCs after lentivirus transfection for regulating HDAC1 expression. Knockdown of HDAC1 within BMSCs elevated the IM-mediated SUP-B15 cell apoptosis, while increasing HDAC1 expression had an opposite effect. IL-6 in BMSCs, which is an important factor for the microenvironment-associated chemoresistance, showed evident up-regulation in HDAC1-upregulated BMSCs and down-regulation in HDAC1-downregulated BMSCs. While recombinant IL-6 (rIL-6) can reversed the sensitivity of SUP-B15 cells to IM induced by downregulating HDAC1 expression in BMSCs. HDAC1 showed positive regulation on IL-6 transcription and secretion. Moreover, IL-6 secretion induced by HDAC1 in BMSCs might enhance IM resistance in Ph + ALL cells. With regard to the underlying molecular mechanism, NF-κB, an important signal responsible for IL-6 transcription in BMSCs, mediated the HDAC1-regulated IL-6 expression. Collectively, this study facilitated to develop HDAC1 inhibitors based not only the corresponding direct anti-Ph + ALL activity but also the regulation of bone marrow microenvironment.
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Affiliation(s)
- Danna Wei
- Department of Pediatric Hematology, Guiyang Maternal and Child Health Care Hospital, Guiyang Children's Hospital, Guiyang, 550002, China
| | - Xiaoling Liang
- Department of Pediatric Hematology, Guiyang Maternal and Child Health Care Hospital, Guiyang Children's Hospital, Guiyang, 550002, China
| | - Meiling Huang
- Department of Pediatric Hematology, Guiyang Maternal and Child Health Care Hospital, Guiyang Children's Hospital, Guiyang, 550002, China
| | - Caili Wang
- Department of Pediatric Hematology, Guiyang Maternal and Child Health Care Hospital, Guiyang Children's Hospital, Guiyang, 550002, China
| | - Zhangmin Ye
- Department of Pediatric Hematology, Guiyang Maternal and Child Health Care Hospital, Guiyang Children's Hospital, Guiyang, 550002, China
| | - Tianzhuo Zhang
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China.
| | - Jingrong Zhang
- Department of Pediatric Hematology, Guiyang Maternal and Child Health Care Hospital, Guiyang Children's Hospital, Guiyang, 550002, China.
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Alghazzawi D, Noor A, Alolaiyan H, El-Wahed Khalifa HA, Alburaikan A, Dai S, Razaq A. A comprehensive study for selecting optimal treatment modalities for blood cancer in a Fermatean fuzzy dynamic environment. Sci Rep 2024; 14:1896. [PMID: 38253693 PMCID: PMC10803788 DOI: 10.1038/s41598-024-51942-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Cancer is characterized by uncontrolled cell proliferation, leading to cellular damage or death. Acute lymphoblastic leukemia (ALL), a kind of blood cancer, that affects lymphoid cells and is a challenging malignancy to treat. The Fermatean fuzzy set (FFS) theory is highly effective at capturing imprecision due to its capacity to incorporate extensive problem descriptions that are unclear and periodic. Within the framework of this study, two innovative aggregation operators: The Fermatean fuzzy Dynamic Weighted Averaging (FFDWA) operator and the Fermatean fuzzy Dynamic Weighted Geometric (FFDWG) operator are presented. The important attributes of these operators, providing a comprehensive elucidation of their significant special cases has been discussed in details. Moreover, these operators are utilized in the development of a systematic approach for addressing scenarios involving multiple attribute decision-making (MADM) problems with Fermatean fuzzy (FF) data. A numerical example concerning on finding the optimal treatment approach for ALL using the proposed operators, is provided. At the end, the validity and merits of the new method to illustrate by comparing it with the existing methods.
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Affiliation(s)
- Dilshad Alghazzawi
- Department of Mathematics, College of Science and Arts, King Abdul Aziz University, Rabigh, Saudi Arabia
| | - Aqsa Noor
- Division of Science and Technology, Department of Mathematics, University of Education, Lahore, 54770, Pakistan
| | - Hanan Alolaiyan
- Department of Mathematics, King Saud University, Riyadh, Saudi Arabia
| | - Hamiden Abd El-Wahed Khalifa
- Department of Mathematics, College of Science and Arts, Qassim University, 51951, Al-Badaya, Saudi Arabia
- Department of Operations and Management Research, Faculty of Graduate Studies for Statistical Research, Cairo University, Giza, 12613, Egypt
| | - Alhanouf Alburaikan
- Department of Mathematics, College of Science and Arts, Qassim University, 51951, Al-Badaya, Saudi Arabia
| | - Songsong Dai
- School of Electronics and Information Engineering, Taizhou University, Taizhou, Zhejiang, China
| | - Abdul Razaq
- Division of Science and Technology, Department of Mathematics, University of Education, Lahore, 54770, Pakistan.
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3
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Sheykhhasan M, Manoochehri H, Dama P. Use of CAR T-cell for acute lymphoblastic leukemia (ALL) treatment: a review study. Cancer Gene Ther 2022; 29:1080-1096. [PMID: 34987176 PMCID: PMC9395272 DOI: 10.1038/s41417-021-00418-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 11/18/2021] [Accepted: 12/13/2021] [Indexed: 02/08/2023]
Abstract
Acute lymphoblastic leukemia (ALL) is a cancer-specific lymphoid cell. Induction and consolidation chemotherapy alone or in combination with different therapeutic approaches remain the main treatment. Although complete or partial remission of the disease can be achieved, the risk of relapse or refractory leukemia is still high. More effective and safe therapy options are yet unmet needs. In recent years' new therapeutic approaches have been widely used. Hematopoietic Stem Cell Transplantation (HSCT) presents significant limitations and the outcome of the consolidation treatment is patient dependent. Side effects such as Graft versus Host Disease (GvHD) in allogeneic hematopoietic stem cell transplantation are extremely common, therefore, using alternative methods to address these challenges for treatment seems crucial. In the last decade, T cells genetically engineered with Chimeric Antigen Receptor (CAR) treatment for the ALL are largely studied and represent the new era of strategy. According to the Phase I/II clinical trials, this technology results seem very promising and can be used in the next future as an effective and safe treatment for ALL treatment. In this review different generations, challenges, and clinical studies related to chimeric antigen receptor (CAR) T-cells for ALL treatment are discussed.
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Affiliation(s)
- Mohsen Sheykhhasan
- grid.411950.80000 0004 0611 9280Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran ,Department of Mesenchymal Stem Cells, Academic Center for Education, Culture and Research, Qom, Iran
| | - Hamed Manoochehri
- grid.411950.80000 0004 0611 9280Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Paola Dama
- Research Fellow School of Life Sciences, University of Sussex, Brighton, UK.
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4
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Liu X, Huang L, Huang K, Yang L, Yang X, Luo A, Cai M, Wu X, Liu X, Yan Y, Wen J, Cai Y, Xu L, Jiang H. Novel Associations Between METTL3 Gene Polymorphisms and Pediatric Acute Lymphoblastic Leukemia: A Five-Center Case-Control Study. Front Oncol 2021; 11:635251. [PMID: 34568001 PMCID: PMC8459019 DOI: 10.3389/fonc.2021.635251] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 07/23/2021] [Indexed: 01/05/2023] Open
Abstract
Objective To reveal the contributing role of METTL3 gene SNPs in pediatric ALL risk. Patients and Methods A total of 808 pediatric ALL cases and 1,340 cancer-free controls from five hospitals in South China were recruited. A case-control study by genotyping three SNPs in the METTL3 gene was conducted. Genomic DNA was abstracted from peripheral blood. Three SNPs (rs1263801 C>G, rs1139130 A>G, and rs1061027 A>C) in the METTL3 gene were chosen to be detected by taqman real-time polymerase chain reaction assay. Results That rs1263801 C>G, rs1139130 A>G, and rs1061027 A>C polymorphisms were significantly associated with increased pediatric ALL risk was identified. In stratification analyses, it was discovered that rs1263801 CC, rs1061027 AA, and rs1139130 GG carriers were more likely to develop ALL in subgroups of common B-ALL, MLL gene fusion. Rs1263801 CC and rs10610257 AA carriers were more possible to increase the risk of ALL in subgroups of low hyperdiploid, and all of these three SNPs exhibited a trend toward the risk of ALL. All of these three polymorphisms were associated with the primitive/naïve lymphocytes and MRD in marrow after chemotherapy in ALL children. Rs1263801 CC and rs1139130 AA alleles provided a protective effect on MRD ≥0.01% among CCCG-treated children. As for rs1139130, AA alleles provided a protective effect on MRD in marrow ≥0.01% on 33 days and 12 weeks among CCCG-treated children, but provided a risk effect on MRD in the marrow ≥0.01% among SCCLG-treated children. As for rs1263801 CC and rs1139130 AA, these two alleles provided a protective effect on MRD in the marrow ≥0.01% among CCCG-treated children. Conclusion In this study, we revealed that METTL3 gene polymorphisms were associated with increased pediatric ALL risk and indicated that METTL3 gene polymorphisms might be a potential biomarker for choosing ALL chemotherapeutics.
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Affiliation(s)
- Xiaoping Liu
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Libin Huang
- Pediatrics Department, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Ke Huang
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lihua Yang
- Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xu Yang
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Ailing Luo
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Mansi Cai
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xuedong Wu
- Department of Pediatrics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaodan Liu
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yaping Yan
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jianyun Wen
- Department of Pediatrics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yun Cai
- Department of Pediatrics, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ling Xu
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Hua Jiang
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
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5
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Lu X, Xie Y, Wang F. Application and Analysis of 6-Mercaptopurine Nanomedicine in the Treatment of Leukemia. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2021; 21:1001-1007. [PMID: 33183436 DOI: 10.1166/jnn.2021.18695] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
As a first-line drug widely used in the treatment of leukemia, 6-MP has obvious effects on leukemia. However, 6-MP disadvantages such as poor solubility in water, easy binding with serum proteins, short circulation time, and large toxic and side effects greatly limit the application of 6-MP. For this reason, various 6-MP nano drug-loading systems have been designed to increase the water solubility of 6-MP, extend the circulation time, and increase the bioavailability of 6-MP to a certain extent, reducing its toxic and side effects. However, its therapeutic effect in vivo and in vitro is still far from expectations, and there is a lot of room for improvement. In order to solve the above problems encountered in the clinical application of 6-MP, we have tried two ways of polymer prodrugs and drug-loaded vesicles to achieve efficient targeted delivery and treatment of 6-MP. We designed hyaluronic acid (HA)-based gluteal-skin-responsive 6-MP polymer prodrug (HA-GS-MP) for highly effective targeted therapy of acute myeloid leukemia. Hyaluronic acid is a natural polysaccharide, which has excellent biocompatibility and biodegradability, and has a good ability to actively target malignant tumor cells overexpressing the CD44 receptor. 6-MP is connected to the HA chain through a vinyl sulfide bond, which is stable under physiological conditions (no drug release), and under intracellular reducing conditions, the connection bond is broken and 6-MP is quickly released. HA-GS-MP has a simple preparation process, good water solubility, long cycle time, and strong targeting ability. This GSH-responsive CD44 targeted 6-MP polymer prodrug is expected to improve the therapeutic effect on acute myeloid leukemia cells.
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Affiliation(s)
- Xueying Lu
- Department of Hematology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an City, 223001, Jiangsu Province, China
| | - Yandong Xie
- Department of Brain Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou City, 221006, Jiangsu Province, China
| | - Fengyu Wang
- Department of Pediatrics, Central Hospital of Zibo, Zibo, 255036, Shandong Province, China
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6
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Rascón-Cruz Q, Espinoza-Sánchez EA, Siqueiros-Cendón TS, Nakamura-Bencomo SI, Arévalo-Gallegos S, Iglesias-Figueroa BF. Lactoferrin: A Glycoprotein Involved in Immunomodulation, Anticancer, and Antimicrobial Processes. Molecules 2021; 26:molecules26010205. [PMID: 33401580 PMCID: PMC7795860 DOI: 10.3390/molecules26010205] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/02/2020] [Accepted: 11/12/2020] [Indexed: 12/15/2022] Open
Abstract
Lactoferrin is an iron binding glycoprotein with multiple roles in the body. Its participation in apoptotic processes in cancer cells, its ability to modulate various reactions of the immune system, and its activity against a broad spectrum of pathogenic microorganisms, including respiratory viruses, have made it a protein of broad interest in pharmaceutical and food research and industry. In this review, we have focused on describing the most important functions of lactoferrin and the possible mechanisms of action that lead to its function.
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7
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Choi PJ, Park TI, Cooper E, Dragunow M, Denny WA, Jose J. Heptamethine Cyanine Dye Mediated Drug Delivery: Hype or Hope. Bioconjug Chem 2020; 31:1724-1739. [DOI: 10.1021/acs.bioconjchem.0c00302] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Peter J. Choi
- Auckland Cancer Society Research Centre, School of Medical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Thomas I−H. Park
- Department of Pharmacology & The Centre for Brain Research, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
- Neurosurgical Research Unit, The Centre for Brain Research, University of Auckland, Private Bag
92019, Auckland 1142, New Zealand
| | - Elizabeth Cooper
- Auckland Cancer Society Research Centre, School of Medical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
- Department of Pharmacology & The Centre for Brain Research, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
- Neurosurgical Research Unit, The Centre for Brain Research, University of Auckland, Private Bag
92019, Auckland 1142, New Zealand
| | - Mike Dragunow
- Department of Pharmacology & The Centre for Brain Research, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
- Neurosurgical Research Unit, The Centre for Brain Research, University of Auckland, Private Bag
92019, Auckland 1142, New Zealand
| | - William A. Denny
- Auckland Cancer Society Research Centre, School of Medical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Jiney Jose
- Auckland Cancer Society Research Centre, School of Medical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
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8
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Devi Priya D, Mohana Roopan S. Claisen-Schmidt, aza-Michael, cyclization via cascade strategy toward microwave promoted synthesis of imidazo[2,1-b]quinazolines. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1757112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Duraipandi Devi Priya
- Department of Chemistry, Chemistry of Heterocycles and Natural Product Research Laboratory, School of Advanced Science, Vellore Institute of Technology, Vellore, Tamilnadu, India
| | - Selvaraj Mohana Roopan
- Department of Chemistry, Chemistry of Heterocycles and Natural Product Research Laboratory, School of Advanced Science, Vellore Institute of Technology, Vellore, Tamilnadu, India
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Aberuyi N, Rahgozar S, Ghodousi ES, Ghaedi K. Drug Resistance Biomarkers and Their Clinical Applications in Childhood Acute Lymphoblastic Leukemia. Front Oncol 2020; 9:1496. [PMID: 32010613 PMCID: PMC6978753 DOI: 10.3389/fonc.2019.01496] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 12/12/2019] [Indexed: 12/12/2022] Open
Abstract
Biomarkers are biological molecules found in body fluids or tissues, which can be considered as indications of a normal or abnormal process, or of a condition or disease. There are various types of biomarkers based on their application and molecular alterations. Treatment-sensitivity or drug resistance biomarkers include prognostic and predictive molecules with utmost importance in selecting appropriate treatment protocols and improving survival rates. Acute lymphoblastic leukemia (ALL) is the most prevalent hematological malignancy diagnosed in children with nearly 80% cure rate. Despite the favorable survival rates of childhood ALL (chALL), resistance to chemotherapeutic agents and, as a consequence, a dismal prognosis develops in a significant number of patients. Therefore, there are urgent needs to have robust, sensitive, and disease-specific molecular prognostic and predictive biomarkers, which could allow better risk classification and then better clinical results. In this article, we review the currently known drug resistance biomarkers, including somatic or germ line nucleic acids, epigenetic alterations, protein expressions and metabolic variations. Moreover, biomarkers with potential clinical applications are discussed.
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Affiliation(s)
- Narges Aberuyi
- Division of Cellular and Molecular Biology, Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Sciences and Technologies, University of Isfahan, Isfahan, Iran
| | - Soheila Rahgozar
- Division of Cellular and Molecular Biology, Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Sciences and Technologies, University of Isfahan, Isfahan, Iran
| | - Elaheh Sadat Ghodousi
- Division of Cellular and Molecular Biology, Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Sciences and Technologies, University of Isfahan, Isfahan, Iran
| | - Kamran Ghaedi
- Division of Cellular and Molecular Biology, Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Sciences and Technologies, University of Isfahan, Isfahan, Iran
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CD4 +CD25 highCD127 low/-FoxP 3 + Regulatory T-Cell Population in Acute Leukemias: A Review of the Literature. J Immunol Res 2019; 2019:2816498. [PMID: 30944830 PMCID: PMC6421759 DOI: 10.1155/2019/2816498] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 12/09/2018] [Indexed: 02/07/2023] Open
Abstract
Regulatory T-cells (Tregs) are a very important subtype of lymphocytes when it comes to self-control in the human immunological system. Tregs are decisive not only in the protection against destruction of own tissues by autoimmune immunocompetent cells but also in the immunological answer to developing cancers. On the other hand, Tregs could be responsible for the progression of acute and chronic leukemias. In our study, we review publications available in the PUMED database concerning acute leukemia, with a particular emphasis on child's leukemias. The percentage of regulatory T-lymphocytes in peripheral blood and bone marrow was elevated compared to those in healthy individuals and correlated with progressive disease. Regulatory T-cells taken from children diagnosed with leukemia showed a higher suppressive capability, which was confirmed by detecting elevated levels of secreted IL-10 and TGF-beta. The possibility of pharmacological intervention in the self-control of the immunological system is now under extensive investigation in many human cancers. Presumably, Treg cells could be a vital part of targeted therapies. Routine Treg determination could be used to assess the severity of disease and prognosis in children with acute lymphoblastic leukemia. This proposition results from the fact that in some studies, higher percentage of Treg cells in peripheral blood was demonstrated. However, observations confirming these facts are scarce; thus, extrapolating them to the population of children with hematological malignancies needs to be verified in additional studies.
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Abstract
Transition state theory teaches that chemically stable mimics of enzymatic transition states will bind tightly to their cognate enzymes. Kinetic isotope effects combined with computational quantum chemistry provides enzymatic transition state information with sufficient fidelity to design transition state analogues. Examples are selected from various stages of drug development to demonstrate the application of transition state theory, inhibitor design, physicochemical characterization of transition state analogues, and their progress in drug development.
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Affiliation(s)
- Vern L. Schramm
- Department of Biochemistry, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, New York 10461, United States
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12
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He X, Zhu L, Li S, Chen Z, Zhao X. Loperamide, an antidiarrheal agent, induces apoptosis and DNA damage in leukemia cells. Oncol Lett 2017; 15:765-774. [PMID: 29399146 PMCID: PMC5772836 DOI: 10.3892/ol.2017.7435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Accepted: 07/27/2017] [Indexed: 01/06/2023] Open
Abstract
Loperamide, an antidiarrheal agent, is frequently used to treat patients with leukemia with symptoms of diarrhea during treatment. However, the effect of loperamide on leukemia cells is unknown. The MTT assay was used to explore the cytotoxic effect of loperamide on leukemia cells. Morphological analysis and flow cytometry were performed to determine the level of apoptosis in leukemia cells following loperamide treatment. Western blotting was conducted to test the activation of the apoptotic pathway. The comet assay was used to determine the DNA damage induced by loperamide. Loperamide potently inhibited the proliferation of leukemia cell lines and primary leukemia cells from 9 patients with acute myeloid leukemia (AML) and 6 patients with acute lymphocytic leukemia (ALL) in a dose-dependent manner. Loperamide increased the expression of cleaved caspase-3 and cleaved poly (ADP-ribose) polymerase, decreased the expression of myeloid cell lekeumia-1 and induced the apoptosis of leukemia cells. In addition, treatment with 20 µM loperamide increased the expression level of the protein rH2ax and promoted the formation of long DNA comet tails, thus triggering DNA damage in leukemia cells. Finally, DNA damage was confirmed by the activation of the ataxia telangiectasia mutated serine/threonine kinase (ATM)-checkpoint kinase 2 (Chk2) signaling pathway. The phosphorylation level of ATM (Ser1981) and Chk2 (Thr68) was activated and upregulated following DNA damage triggered by loperamide. Loperamide was demonstrated to perform an inhibitory role in the growth of leukemia cell lines and primary leukemia cells. Of note, apoptosis and DNA damage were induced following loperamide treatment in leukemia cell lines and primary leukemia cells.
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Affiliation(s)
- Xin He
- Department of Hematology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Lei Zhu
- Department of Clinical Laboratory, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Shu Li
- Department of Hematology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Zhigang Chen
- Department of Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Xiaoying Zhao
- Department of Hematology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
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