1
|
Yang J, Pan C, Pan Y, Hu A, Zhao P, Chen M, Song H, Li Y, Hao X. A Carbon 21 Steroidal Glycoside with Pregnane Skeleton from Cynanchum atratum Bunge Promotes Megakaryocytic and Erythroid Differentiation in Erythroleukemia HEL Cells through Regulating Platelet-Derived Growth Factor Receptor Beta and JAK2/STAT3 Pathway. Pharmaceuticals (Basel) 2024; 17:628. [PMID: 38794198 PMCID: PMC11125340 DOI: 10.3390/ph17050628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 05/26/2024] Open
Abstract
Erythroleukemia is a rare form of acute myeloid leukemia (AML). Its molecular pathogenesis remains vague, and this disease has no specific therapeutic treatments. Previously, our group isolated a series of Carbon 21 (C-21) steroidal glycosides with pregnane skeleton from the root of Cynanchum atratum Bunge. Among them, we found that a compound, named BW18, can induce S-phase cell cycle arrest and apoptosis via the mitogen-activated protein kinase (MAPK) pathway in human chronic myeloid leukemia K562 cells. However, its anti-tumor activity against erythroleukemia remains largely unknown. In this study, we aimed to investigate the anti-erythroleukemia activity of BW18 and the underlying molecular mechanisms. Our results demonstrated that BW18 exhibited a good anti-erythroleukemia activity in the human erythroleukemia cell line HEL and an in vivo xenograft mouse model. In addition, BW18 induced cell cycle arrest at the G2/M phase and promoted megakaryocytic and erythroid differentiation in HEL cells. Furthermore, RNA sequencing (RNA-seq) and rescue assay demonstrated that overexpression of platelet-derived growth factor receptor beta (PDGFRB) reversed BW18-induced megakaryocytic differentiation in HEL cells, but not erythroid differentiation. In addition, the network pharmacology analysis, the molecular docking and cellular thermal shift assay (CETSA) revealed that BW18 could inactivate Janus tyrosine kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) pathway, which might mediate BW18-induced erythroid differentiation. Taken together, our findings elucidated a novel role of PDGFRB in regulating erythroleukemia differentiation and highlighted BW18 as an attractive lead compound for erythroleukemia treatment.
Collapse
Affiliation(s)
- Jue Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 561113, China; (J.Y.); (C.P.); (Y.P.); (A.H.); (P.Z.); (M.C.)
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang 561113, China
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 561113, China
| | - Chaolan Pan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 561113, China; (J.Y.); (C.P.); (Y.P.); (A.H.); (P.Z.); (M.C.)
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang 561113, China
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 561113, China
| | - Yang Pan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 561113, China; (J.Y.); (C.P.); (Y.P.); (A.H.); (P.Z.); (M.C.)
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang 561113, China
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 561113, China
| | - Anlin Hu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 561113, China; (J.Y.); (C.P.); (Y.P.); (A.H.); (P.Z.); (M.C.)
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang 561113, China
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
| | - Peng Zhao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 561113, China; (J.Y.); (C.P.); (Y.P.); (A.H.); (P.Z.); (M.C.)
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang 561113, China
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 561113, China
| | - Meijun Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 561113, China; (J.Y.); (C.P.); (Y.P.); (A.H.); (P.Z.); (M.C.)
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang 561113, China
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 561113, China
| | - Hui Song
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 561113, China; (J.Y.); (C.P.); (Y.P.); (A.H.); (P.Z.); (M.C.)
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang 561113, China
| | - Yanmei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 561113, China; (J.Y.); (C.P.); (Y.P.); (A.H.); (P.Z.); (M.C.)
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang 561113, China
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 561113, China
| | - Xiaojiang Hao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 561113, China; (J.Y.); (C.P.); (Y.P.); (A.H.); (P.Z.); (M.C.)
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang 561113, China
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 561113, China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
| |
Collapse
|
2
|
Ding L, Chen D, Li Y, Xie Y, Sun X, Wang D. Saracatinib prompts hemin-induced K562 erythroid differentiation but suppresses erythropoiesis of hematopoietic stem cells. Hum Cell 2024; 37:648-665. [PMID: 38388899 PMCID: PMC11016514 DOI: 10.1007/s13577-024-01034-5] [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: 01/17/2024] [Indexed: 02/24/2024]
Abstract
Human myeloid leukemia cells (such as K562) could be used for the study of erythropoiesis, and mature erythroid markers and globins could be induced during leukemia cell differentiation; however, the pathways involved are different compared with those of hematopoietic stem cells (HSCs).We identified the differentially expressed genes (DEGs) of K562 cells and HSCs associated with stem cells and erythroid differentiation. Furthermore, we showed that hemin-induced differentiation of K562 cells could be induced by serum starvation or treatment with the tyrosine kinase inhibitor saracatinib. However, erythroid differentiation of HSCs was inhibited by the deprivation of the important serum component erythropoietin (EPO) or treatment with saracatinib. Finally, we found that the mRNA expression of K562 cells and HSCs was different during saracatinib-treated erythroid differentiation, and the DEGs of K562 cells and HSCs associated with tyrosine-protein kinase were identified.These findings elucidated the cellular phenomenon of saracatinib induction during erythroid differentiation of K562 cells and HSCs, and the potential mechanism is the different mRNA expression profile of tyrosine-protein kinase in K562 cells and HSCs.
Collapse
Affiliation(s)
- Lina Ding
- Department of Obstetrics, Dongguan Songshan Lake Central Hospital, Dongguan Third People's Hospital, Dongguan, 523326, Guangdong, China
| | - Diyu Chen
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Guangzhou, 510150, Guangdong, China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Guangzhou, 510150, Guangdong, China
| | - Yuanshuai Li
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Guangzhou, 510150, Guangdong, China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Guangzhou, 510150, Guangdong, China
| | - Yingjun Xie
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Guangzhou, 510150, Guangdong, China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Guangzhou, 510150, Guangdong, China
| | - Xiaofang Sun
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Guangzhou, 510150, Guangdong, China.
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Guangzhou, 510150, Guangdong, China.
| | - Ding Wang
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Guangzhou, 510150, Guangdong, China.
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Guangzhou, 510150, Guangdong, China.
| |
Collapse
|
3
|
Skopek R, Palusińska M, Kaczor-Keller K, Pingwara R, Papierniak-Wyglądała A, Schenk T, Lewicki S, Zelent A, Szymański Ł. Choosing the Right Cell Line for Acute Myeloid Leukemia (AML) Research. Int J Mol Sci 2023; 24:5377. [PMID: 36982453 PMCID: PMC10049680 DOI: 10.3390/ijms24065377] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 03/01/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023] Open
Abstract
Immortalized cell lines are widely used in vitro tools in oncology and hematology research. While these cell lines represent artificial systems and may accumulate genetic aberrations with each passage, they are still considered valuable models for pilot, preliminary, and screening studies. Despite their limitations, cell lines are cost-effective and provide repeatable and comparable results. Choosing the appropriate cell line for acute myeloid leukemia (AML) research is crucial for obtaining reliable and relevant results. Several factors should be considered when selecting a cell line for AML research, such as specific markers and genetic abnormalities associated with different subtypes of AML. It is also essential to evaluate the karyotype and mutational profile of the cell line, as these can influence the behavior and response to the treatment of the cells. In this review, we evaluate immortalized AML cell lines and discuss the issues surrounding them concerning the revised World Health Organization and the French-American-British classifications.
Collapse
Affiliation(s)
- Rafał Skopek
- Department of Molecular Biology, Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, Postępu 36A, 05-552 Magdalenka, Poland
| | - Małgorzata Palusińska
- Department of Molecular Biology, Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, Postępu 36A, 05-552 Magdalenka, Poland
| | - Katarzyna Kaczor-Keller
- Department of Molecular Biology, Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, Postępu 36A, 05-552 Magdalenka, Poland
| | - Rafał Pingwara
- Department of Physiological Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, 02-787 Warsaw, Poland
| | | | - Tino Schenk
- Department of Hematology and Medical Oncology, Clinic of Internal Medicine II, Jena University Hospital, 07747 Jena, Germany
- Institute of Molecular Cell Biology, Center for Molecular Biomedicine Jena (CMB), Jena University Hospital, 07747 Jena, Germany
| | - Sławomir Lewicki
- Faculty of Medical Sciences and Health Sciences, Kazimierz Pulaski University of Technology and Humanities, 26-600 Radom, Poland
- Institute of Outcomes Research, Maria Sklodowska-Curie Medical Academy, 00-001 Warsaw, Poland
| | - Artur Zelent
- Department of Molecular Biology, Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, Postępu 36A, 05-552 Magdalenka, Poland
| | - Łukasz Szymański
- Department of Molecular Biology, Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, Postępu 36A, 05-552 Magdalenka, Poland
| |
Collapse
|
4
|
Sumphanapai T, Chester K, Sawatnatee S, Yeung J, Yamabhai M. Targeting acute myeloid cell surface using a recombinant antibody isolated from whole-cell biopanning of a phage display human scFv antibody library. MEDICAL ONCOLOGY (NORTHWOOD, LONDON, ENGLAND) 2022; 39:205. [PMID: 36175701 DOI: 10.1007/s12032-022-01806-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 07/20/2022] [Indexed: 11/27/2022]
Abstract
To discover new therapeutic antibodies for treatment of acute myeloid leukemia (AML) without the requirement of a known antigen, a human single-chain variable fragment (scFv) library was used to isolate novel antibody fragments recognizing HL-60 AML cells. After three rounds of biopanning, scFv-expressing phages were selected to test for binding to the target cell by flow cytometry. The clone with highest binding specificity to HL-60 cells (designated y1HL63D6) was further investigated. Fluorescent staining indicated that y1HL63D6 scFv bound to a target located on the cell surface. Whole immunoglobulin, IgG-y1HL63D6 was then generated and tested for the binding against bone marrow mononuclear cells (BMMCs) from AML patients. Significantly higher fluorescent signals were observed for some patient samples when compared to normal BMMCs or non-AML patients' BMMCs. Next, the IgG-y1HL63D6 format was tested for antibody-dependent cell cytotoxicity (ADCC). The results demonstrated that IgG-y1HL63D6 but not the control antibody, trastuzumab, could mediate specific killing of HL-60 target cells. In conclusion, our results indicate that specific antibodies can be isolated by biopanning whole cells with a non-immunized human scFv antibody phage display library and that the isolated antibody against HL-60 cells showed therapeutic potential.
Collapse
Affiliation(s)
- Thitima Sumphanapai
- Molecular Biotechnology Laboratory, School of Biotechnology, Institute of Agricultural Technology, Suranaree University of Technology, 111 University Avenue, Nakhon Ratchasima, 30000, Thailand
| | - Kerry Chester
- University College London Cancer Institute, 72 Huntley Street, London, WC1E 6BT, UK
| | - Surasak Sawatnatee
- Hematology Unit, Sunpasitthiprasong Hospital, Ubon Ratchathani, 34000, Thailand
| | - Jenny Yeung
- University College London Cancer Institute, 72 Huntley Street, London, WC1E 6BT, UK
- University College London Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK
| | - Montarop Yamabhai
- Molecular Biotechnology Laboratory, School of Biotechnology, Institute of Agricultural Technology, Suranaree University of Technology, 111 University Avenue, Nakhon Ratchasima, 30000, Thailand.
| |
Collapse
|
5
|
Nagel S. The Role of NKL Homeobox Genes in T-Cell Malignancies. Biomedicines 2021; 9:biomedicines9111676. [PMID: 34829904 PMCID: PMC8615965 DOI: 10.3390/biomedicines9111676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 11/16/2022] Open
Abstract
Homeobox genes encode transcription factors controlling basic developmental processes. The homeodomain is encoded by the homeobox and mediates sequence-specific DNA binding and interaction with cofactors, thus operating as a basic regulatory platform. Similarities in their homeobox sequences serve to arrange these genes in classes and subclasses, including NKL homeobox genes. In accordance with their normal functions, deregulated homeobox genes contribute to carcinogenesis along with hematopoietic malignancies. We have recently described the physiological expression of eleven NKL homeobox genes in the course of hematopoiesis and termed this gene expression pattern NKL-code. Due to the developmental impact of NKL homeobox genes these data suggest a key role for their activity in the normal regulation of hematopoietic cell differentiation including T-cells. On the other hand, aberrant overexpression of NKL-code members or ectopical activation of non-code members has been frequently reported in lymphoid and myeloid leukemia/lymphoma, demonstrating their oncogenic impact in the hematopoietic compartment. Here, we provide an overview of the NKL-code in normal hematopoiesis and discuss the oncogenic role of deregulated NKL homeobox genes in T-cell malignancies.
Collapse
Affiliation(s)
- Stefan Nagel
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ, 38124 Braunschweig, Germany
| |
Collapse
|
6
|
Wu S, Chen K, Xu T, Ma K, Gao L, Fu C, Zhang W, Jing C, Ren C, Deng M, Chen Y, Zhou Y, Pan W, Jia X. Tpr Deficiency Disrupts Erythroid Maturation With Impaired Chromatin Condensation in Zebrafish Embryogenesis. Front Cell Dev Biol 2021; 9:709923. [PMID: 34722501 PMCID: PMC8548687 DOI: 10.3389/fcell.2021.709923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 09/08/2021] [Indexed: 11/16/2022] Open
Abstract
Vertebrate erythropoiesis involves nuclear and chromatin condensation at the early stages of terminal differentiation, which is a unique process to distinguish mature erythrocytes from erythroblasts. However, the underlying mechanisms of chromatin condensation during erythrocyte maturation remain elusive. Here, we reported a novel zebrafish mutant cas7 with erythroid maturation deficiency. Positional cloning showed that a single base mutation in tprb gene, which encodes nucleoporin translocated promoter region (Tpr), is responsible for the disrupted erythroid maturation and upregulation of erythroid genes, including ae1-globin and be1-globin. Further investigation revealed that deficient erythropoiesis in tprb cas7 mutant was independent on HIF signaling pathway. The proportion of euchromatin was significantly increased, whereas the percentage of heterochromatin was markedly decreased in tprb cas7 mutant. In addition, TPR knockdown in human K562 cells also disrupted erythroid differentiation and dramatically elevated the expression of globin genes, which suggests that the functions of TPR in erythropoiesis are highly conserved in vertebrates. Taken together, this study revealed that Tpr played vital roles in chromatin condensation and gene regulation during erythroid maturation in vertebrates.
Collapse
Affiliation(s)
- Shuang Wu
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Kai Chen
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Tao Xu
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
- Central Laboratory, Qingdao Agricultural University, Qingdao, China
| | - Ke Ma
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Lei Gao
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Cong Fu
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Wenjuan Zhang
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Changbin Jing
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Chunguang Ren
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Min Deng
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Yi Chen
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Zhou
- Stem Cell Program, Hematology/Oncology Program at Children’s Hospital Boston, Harvard Medical School, Boston, MA, United States
| | - Weijun Pan
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Xiaoe Jia
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
- Inner Mongolia Key Laboratory of Hypoxic Translational Medicine, Baotou Medical College, Baotou, China
| |
Collapse
|
7
|
NKL-Code in Normal and Aberrant Hematopoiesis. Cancers (Basel) 2021; 13:cancers13081961. [PMID: 33921702 PMCID: PMC8073162 DOI: 10.3390/cancers13081961] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Gene codes represent expression patterns of closely related genes in particular tissues, organs or body parts. The NKL-code describes the activity of NKL homeobox genes in the hematopoietic system. NKL homeobox genes encode transcription factors controlling basic developmental processes. Therefore, aberrations of this code may contribute to deregulated hematopoiesis including leukemia and lymphoma. Normal and abnormal activities of NKL homeobox genes are described and mechanisms of (de)regulation, function, and diseases exemplified. Abstract We have recently described physiological expression patterns of NKL homeobox genes in early hematopoiesis and in subsequent lymphopoiesis and myelopoiesis, including terminally differentiated blood cells. We thereby systematized differential expression patterns of eleven such genes which form the so-called NKL-code. Due to the developmental impact of NKL homeobox genes, these data suggest a key role for their activity in normal hematopoietic differentiation processes. On the other hand, the aberrant overexpression of NKL-code-members or the ectopical activation of non-code members have been frequently reported in lymphoid and myeloid leukemia/lymphoma, revealing the oncogenic potential of these genes in the hematopoietic compartment. Here, I provide an overview of the NKL-code in normal hematopoiesis and instance mechanisms of deregulation and oncogenic functions of selected NKL genes in hematologic cancers. As well as published clinical studies, our conclusions are based on experimental work using hematopoietic cell lines which represent useful models to characterize the role of NKL homeobox genes in specific tumor types.
Collapse
|
8
|
Cancer Cell Lines Are Useful Model Systems for Medical Research. Cancers (Basel) 2019; 11:cancers11081098. [PMID: 31374935 PMCID: PMC6721418 DOI: 10.3390/cancers11081098] [Citation(s) in RCA: 155] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 07/17/2019] [Accepted: 07/30/2019] [Indexed: 12/19/2022] Open
Abstract
Cell lines are in vitro model systems that are widely used in different fields of medical research, especially basic cancer research and drug discovery. Their usefulness is primarily linked to their ability to provide an indefinite source of biological material for experimental purposes. Under the right conditions and with appropriate controls, authenticated cancer cell lines retain most of the genetic properties of the cancer of origin. During the last few years, comparing genomic data of most cancer cell lines has corroborated this statement and those that were observed studying the tumoral tissue equivalents included in the The Cancer Genome Atlas (TCGA) database. We are at the disposal of comprehensive open access cell line datasets describing their molecular and cellular alterations at an unprecedented level of accuracy. This aspect, in association with the possibility of setting up accurate culture conditions that mimic the in vivo microenvironment (e.g., three-dimensional (3D) coculture), has strengthened the importance of cancer cell lines for continuing to sustain medical research fields. However, it is important to consider that the appropriate use of cell lines needs to follow established guidelines for guaranteed data reproducibility and quality, and to prevent the occurrence of detrimental events (i.e., those that are linked to cross-contamination and mycoplasma contamination).
Collapse
|
9
|
Jafari H, Hesami S, Safi M, Ghasemi F, Banan M. Expression and hydroxyurea-triggered induction of EGFP upon CRISPR/Cas9-mediated integration into the γ-globin gene of K562 cells. Biotechnol Lett 2019; 41:691-700. [DOI: 10.1007/s10529-019-02671-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 03/27/2019] [Indexed: 02/08/2023]
|
10
|
Zhou B, Ho SS, Greer SU, Zhu X, Bell JM, Arthur JG, Spies N, Zhang X, Byeon S, Pattni R, Ben-Efraim N, Haney MS, Haraksingh RR, Song G, Ji HP, Perrin D, Wong WH, Abyzov A, Urban AE. Comprehensive, integrated, and phased whole-genome analysis of the primary ENCODE cell line K562. Genome Res 2019; 29:472-484. [PMID: 30737237 PMCID: PMC6396411 DOI: 10.1101/gr.234948.118] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 12/28/2018] [Indexed: 11/24/2022]
Abstract
K562 is widely used in biomedical research. It is one of three tier-one cell lines of ENCODE and also most commonly used for large-scale CRISPR/Cas9 screens. Although its functional genomic and epigenomic characteristics have been extensively studied, its genome sequence and genomic structural features have never been comprehensively analyzed. Such information is essential for the correct interpretation and understanding of the vast troves of existing functional genomics and epigenomics data for K562. We performed and integrated deep-coverage whole-genome (short-insert), mate-pair, and linked-read sequencing as well as karyotyping and array CGH analysis to identify a wide spectrum of genome characteristics in K562: copy numbers (CN) of aneuploid chromosome segments at high-resolution, SNVs and indels (both corrected for CN in aneuploid regions), loss of heterozygosity, megabase-scale phased haplotypes often spanning entire chromosome arms, structural variants (SVs), including small and large-scale complex SVs and nonreference retrotransposon insertions. Many SVs were phased, assembled, and experimentally validated. We identified multiple allele-specific deletions and duplications within the tumor suppressor gene FHIT. Taking aneuploidy into account, we reanalyzed K562 RNA-seq and whole-genome bisulfite sequencing data for allele-specific expression and allele-specific DNA methylation. We also show examples of how deeper insights into regulatory complexity are gained by integrating genomic variant information and structural context with functional genomics and epigenomics data. Furthermore, using K562 haplotype information, we produced an allele-specific CRISPR targeting map. This comprehensive whole-genome analysis serves as a resource for future studies that utilize K562 as well as a framework for the analysis of other cancer genomes.
Collapse
Affiliation(s)
- Bo Zhou
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California 94305, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Steve S Ho
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California 94305, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Stephanie U Greer
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Xiaowei Zhu
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California 94305, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, California 94305, USA
| | - John M Bell
- Stanford Genome Technology Center, Stanford University, Palo Alto, California 94304, USA
| | - Joseph G Arthur
- Department of Statistics, Stanford University, Stanford, California 94305, USA
| | - Noah Spies
- Department of Genetics, Stanford University School of Medicine, Stanford, California 94305, USA.,Department of Pathology, Stanford University School of Medicine, Stanford, California 94305, USA.,Genome-Scale Measurements Group, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - Xianglong Zhang
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California 94305, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Seunggyu Byeon
- School of Computer Science and Engineering, College of Engineering, Pusan National University, Busan 46241, South Korea
| | - Reenal Pattni
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California 94305, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Noa Ben-Efraim
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California 94305, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Michael S Haney
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California 94305, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Rajini R Haraksingh
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California 94305, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Giltae Song
- School of Computer Science and Engineering, College of Engineering, Pusan National University, Busan 46241, South Korea
| | - Hanlee P Ji
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, California 94305, USA.,Stanford Genome Technology Center, Stanford University, Palo Alto, California 94304, USA
| | - Dimitri Perrin
- Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Wing H Wong
- Department of Statistics, Stanford University, Stanford, California 94305, USA.,Department of Biomedical Data Science, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Alexej Abyzov
- Department of Health Sciences Research, Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota 55905, USA
| | - Alexander E Urban
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California 94305, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, California 94305, USA.,Tashia and John Morgridge Faculty Scholar, Stanford Child Health Research Institute, Stanford, California 94305, USA
| |
Collapse
|
11
|
Uchida N, Haro-Mora JJ, Demirci S, Fujita A, Raines L, Hsieh MM, Tisdale JF. High-level embryonic globin production with efficient erythroid differentiation from a K562 erythroleukemia cell line. Exp Hematol 2018; 62:7-16.e1. [PMID: 29524566 PMCID: PMC8541692 DOI: 10.1016/j.exphem.2018.02.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 02/16/2018] [Accepted: 02/20/2018] [Indexed: 12/21/2022]
Abstract
A reliable cell line capable of robust in vitro erythroid differentiation would be useful to investigate red blood cell (RBC) biology and genetic strategies for RBC diseases. K562 cells are widely utilized for erythroid differentiation; however, current differentiation methods are insufficient to analyze globin proteins. In this study, we sought to improve erythroid differentiation from K562 cells to enable protein-level globin analysis. K562 cells were exposed to a variety of reagents, including hemin, rapamycin, imatinib, and/or decitabine (known erythroid inducers), and cultured in a basic culture medium or erythropoietin-based differentiation medium. All single reagents induced observable erythroid differentiation with higher glycophorin A (GPA) expression but were insufficient to produce detectable globin proteins. We then evaluated various combinations of these reagents and developed a method incorporating imatinib preexposure and an erythropoietin-based differentiation culture containing both rapamycin and decitabine capable of efficient erythroid differentiation, high-level GPA expression (>90%), and high-level globin production at protein levels detectable by hemoglobin electrophoresis and high performance liquid chromatography. In addition, β-globin gene transfer resulted in detectable adult hemoglobin. In summary, we developed an in vitro K562 erythroid differentiation model with high-level globin production. This model provides a practical evaluation tool for hemoglobin production in human erythroid cells.
Collapse
Affiliation(s)
- Naoya Uchida
- Sickle Cell Branch, National Heart Lung and Blood Institute/National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA.
| | - Juan J Haro-Mora
- Sickle Cell Branch, National Heart Lung and Blood Institute/National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Selami Demirci
- Sickle Cell Branch, National Heart Lung and Blood Institute/National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Atsushi Fujita
- Sickle Cell Branch, National Heart Lung and Blood Institute/National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Lydia Raines
- Sickle Cell Branch, National Heart Lung and Blood Institute/National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Matthew M Hsieh
- Sickle Cell Branch, National Heart Lung and Blood Institute/National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - John F Tisdale
- Sickle Cell Branch, National Heart Lung and Blood Institute/National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| |
Collapse
|
12
|
Gnanapragasam MN, Crispino JD, Ali AM, Weinberg R, Hoffman R, Raza A, Bieker JJ. Survey and evaluation of mutations in the human KLF1 transcription unit. Sci Rep 2018; 8:6587. [PMID: 29700354 PMCID: PMC5920080 DOI: 10.1038/s41598-018-24962-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 04/12/2018] [Indexed: 01/03/2023] Open
Abstract
Erythroid Krüppel-like Factor (EKLF/KLF1) is an erythroid-enriched transcription factor that plays a global role in all aspects of erythropoiesis, including cell cycle control and differentiation. We queried whether its mutation might play a role in red cell malignancies by genomic sequencing of the KLF1 transcription unit in cell lines, erythroid neoplasms, dysplastic disorders, and leukemia. In addition, we queried published databases from a number of varied sources. In all cases we only found changes in commonly notated SNPs. Our results suggest that if there are mutations in KLF1 associated with erythroid malignancies, they are exceedingly rare.
Collapse
Affiliation(s)
- Merlin Nithya Gnanapragasam
- Department of Cell, Developmental, and Regenerative Biology, Mount Sinai School of Medicine, New York, NY, 10029, USA
| | - John D Crispino
- Department of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Abdullah M Ali
- Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA
| | - Rona Weinberg
- Cellular Therapy Laboratory, New York Blood Center, New York, NY, 10065, USA
| | - Ronald Hoffman
- Department of Medicine, Mount Sinai School of Medicine, New York, NY, 10029, USA
| | - Azra Raza
- Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA
| | - James J Bieker
- Department of Cell, Developmental, and Regenerative Biology, Mount Sinai School of Medicine, New York, NY, 10029, USA.
- Tisch Cancer Institute, Mount Sinai School of Medicine, New York, NY, 10029, USA.
- Black Familly Stem Cell Institute, Mount Sinai School of Medicine, New York, NY, 10029, USA.
- Mindich Child Health and Development Institute, Mount Sinai School of Medicine, New York, NY, 10029, USA.
| |
Collapse
|
13
|
Boddu P, Benton CB, Wang W, Borthakur G, Khoury JD, Pemmaraju N. Erythroleukemia-historical perspectives and recent advances in diagnosis and management. Blood Rev 2017; 32:96-105. [PMID: 28965757 DOI: 10.1016/j.blre.2017.09.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 09/03/2017] [Accepted: 09/15/2017] [Indexed: 12/20/2022]
Abstract
Acute erythroleukemia is a rare form of acute myeloid leukemia recognized by its distinct phenotypic attribute of erythroblastic proliferation. After a century of its descriptive history, many diagnostic, prognostic, and therapeutic implications relating to this unique leukemia subset remain uncertain. The rarity of the disease and the simultaneous involvement of its associated myeloid compartment have complicated in vitro studies of human erythroleukemia cell lines. Although murine and cell line erythroleukemia models have provided valuable insights into pathophysiology, translation of these concepts into treatment are not forthcoming. Integration of knowledge gained through a careful study of these models with more recent data emerging from molecular characterization will help elucidate key mechanistic pathways and provide a much needed framework that accounts for erythroid lineage-specific attributes. In this article, we discuss the evolving diagnostic concept of erythroleukemia, translational aspects of its pathophysiology, and promising therapeutic targets through an appraisal of the current literature.
Collapse
Affiliation(s)
- Prajwal Boddu
- Department of Leukemia, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - Christopher B Benton
- Department of Leukemia, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - Wei Wang
- Department of Hematopathology, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - Gautam Borthakur
- Department of Leukemia, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - Joseph D Khoury
- Department of Hematopathology, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA.
| | - Naveen Pemmaraju
- Department of Leukemia, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA.
| |
Collapse
|
14
|
Maroofi N, Azarkeivan A, Banihashemi S, Mohammadparast S, Aghajanirefah A, Banan M. An enhancer haplotype may influence BCL11A expression levels and the response to hydroxyurea in β-thalassemia patients. Pharmacogenomics 2017. [PMID: 28639471 DOI: 10.2217/pgs-2017-0019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
AIM To identify the BCL11A intron-2 enhancer linkage disequilibrium (LD) block, harboring two previously identified SNPs, associating with the hydroxyurea response in β-thalassemia patients and the functional significance of this region. MATERIALS & METHODS Several neighboring SNPs were genotyped in our cohort. The associating LD block was identified, and its function studied in K562 erythroid cells via CRISPR/Cas9 genome editing. RESULTS A haplotype harboring three tag SNPs correlated significantly with the HU-response and BCL11A transcript levels in the patients' reticulocytes. Two deletions encompassing this LD block significantly reduced BCL11A transcript levels in K562 cells. CONCLUSION Our data suggest an essential role for this LD block in BCL11A expression levels and the response to hydroxyurea in β-thalassemia patients.
Collapse
Affiliation(s)
- Nahal Maroofi
- Genetics Research Center, University of Social Welfare & Rehabilitation Sciences, Tehran, Iran
| | - Azita Azarkeivan
- Pediatric Hematology Oncology, Blood Transfusion Research Center, High Institute for Research & Education in Transfusion Medicine, Thalassemia Clinic, Tehran, Iran
| | - Soosan Banihashemi
- Genetics Research Center, University of Social Welfare & Rehabilitation Sciences, Tehran, Iran
| | - Saeid Mohammadparast
- Genetics Research Center, University of Social Welfare & Rehabilitation Sciences, Tehran, Iran
| | - Ali Aghajanirefah
- Genetics Research Center, University of Social Welfare & Rehabilitation Sciences, Tehran, Iran.,Laboratory Medicine, UCSF School of Medicine, San Francisco, CA 94115, USA
| | - Mehdi Banan
- Genetics Research Center, University of Social Welfare & Rehabilitation Sciences, Tehran, Iran
| |
Collapse
|
15
|
Vecchiarelli-Federico LM, Liu T, Yao Y, Gao Y, Li Y, Li YJ, Ben-David Y. Fli-1 overexpression in erythroleukemic cells promotes erythroid de-differentiation while Spi-1/PU.1 exerts the opposite effect. Int J Oncol 2017; 51:456-466. [PMID: 28586009 PMCID: PMC5505126 DOI: 10.3892/ijo.2017.4027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 05/23/2017] [Indexed: 01/21/2023] Open
Abstract
The ETS transcription factors play a critical role during hematopoiesis. In F-MuLV-induced erythroleukemia, Fli-1 insertional activation producing high expression of this transcription factor required to promote proliferation. How deregulated Fli-1 expression alters the balance between erythroid differentiation and proliferation is unknown. To address this issue, we exogenously overexpressed Fli-1 in an erythroleukemic cell harboring activation of spi-1/PU.1, another ETS gene involved in erythroleukemogenesis. While the proliferation in culture remains unaffected, Fli-1 overexpression imparts morphological and immunohistochemical characteristics of immature erythroid progenitors. Fli-1 overexpression in erythroleukemic cells increased the numbers of erythroid colonies on methylcellulose and reduced tumorigenicity as evidenced by increase latency of erythroleukemogenesis in mice inoculated with these cells. Although all transplanted mice developed enlargement of the spleen and liver due to leukemic infiltration, Fli-1 overexpression altered the hematopoietic phenotype, significantly increasing the expression of regulatory hematopoietic genes cKIT, SCA-1, CD41 and CD71. In contrast, expression of Spi-1/PU.1 in a Fli-1 producing erythroleukemia cell line in which fli-1 is activated, resulted in increased proliferation through activation of growth promoting proteins MAPK, AKT, cMYC and JAK2. Importantly, these progenitors express high levels of markers such as CD71 and TER119 associated with more mature erythroid cells. Thus, Fli-1 overexpression induces a de-differentiation program by reverting CFU-E to BFU-E erythroid progenitor activity, while Spi-1/PU.1 promoting maturation from BFU-E to CFU-E.
Collapse
Affiliation(s)
| | - Tangjingjun Liu
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academic of Sciences, Guiyang, Guizhou 550014, P.R. China
| | - Yao Yao
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academic of Sciences, Guiyang, Guizhou 550014, P.R. China
| | - Yuanyuan Gao
- Department of Anatomy, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yanmei Li
- Molecular and Cellular Biology, Sunnybrook Health Sciences Centre, Toronto, Ontario M4N 3M5, Canada
| | - You-Jun Li
- Department of Anatomy, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yaacov Ben-David
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academic of Sciences, Guiyang, Guizhou 550014, P.R. China
| |
Collapse
|
16
|
Natural Remedies for the Treatment of Beta-Thalassemia and Sickle Cell Anemia-Current Status and Perspectives in Fetal Hemoglobin Reactivation. INTERNATIONAL SCHOLARLY RESEARCH NOTICES 2014; 2014:123257. [PMID: 27350962 PMCID: PMC4897541 DOI: 10.1155/2014/123257] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 07/21/2014] [Accepted: 07/25/2014] [Indexed: 11/18/2022]
Abstract
For the treatment of β-thalassemia and sickle cell disease (SCD), pharmacological induction of fetal hemoglobin (HbF) production may be a promising approach. To date, numerous studies have been done on identifying the novel HbF-inducing agents and understanding the underlying mechanism for stimulating the HbF production. In this review, we have summarized the identified HbF-inducing agents by far. By examining the action mechanisms of the HbF-inducing agents, various studies have suggested that despite the ability of stimulating HbF production, the chemotherapeutic agents could not be practically applied for treating β-hemoglobinopathies, especially β-thalassemia, due to the their cytotoxicity and growth-inhibitory effect. Owing to this therapeutic obstacle, much effort has been put on identifying new HbF-inducing agents from the natural world with the combination of efficacy, safety, and ease of use. Therefore, this review aims to (i) reveal the novel screening platforms for identifying potential inducers with high efficiency and accuracy and to (ii) summarize the new identified natural remedies for stimulating HbF production. Hopefully, this review can provide a new insight into the current status and future perspectives in fetal hemoglobin reactivation for treating β-thalassaemia and SCD.
Collapse
|
17
|
Changes in DNA methylation of erythroid-specific genes in K562 cells exposed to phenol and hydroquinone. Toxicology 2013; 312:108-14. [DOI: 10.1016/j.tox.2013.08.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 07/18/2013] [Accepted: 08/10/2013] [Indexed: 11/18/2022]
|
18
|
Banan M, Esmaeilzadeh-Gharehdaghi E, Nezami M, Deilami Z, Farashi S, Philipsen S, Esteghamat F, Pourfarzad F, Ali Imam AM, Najmabadi H. cAMP response element-binding protein 1 is required for hydroxyurea-mediated induction of γ-globin expression in K562 cells. Clin Exp Pharmacol Physiol 2013; 39:510-7. [PMID: 22469229 DOI: 10.1111/j.1440-1681.2012.05702.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
1. Hydroxyurea (HU) is a drug used for the treatment of haemoglobinopathies. Hydroxyurea functions by upregulating γ-globin transcription and fetal haemoglobin (HbF) production in erythroid cells. The K562 erythroleukaemia cell line is widely used as a model system in which to study the mechanism of γ-globin induction by HU. However, the transcription factors required for the upregulation of γ-globin expression by HU in K562 cells have not been identified. Similarities between the HU and sodium butyrate (SB) pathways suggest cAMP response element-binding protein (CREB) 1 as a potential candidate. Thus, the aim of the present study was to investigate the possible role of CREB1 in the HU pathway. 2. Experiments were performed using transient and stable RNA interference (RNAi) to show that CREB1 is necessary for HU-mediated induction of γ-globin expression and haemoglobin production in K562 cells. 3. Furthermore, western blot analyses demonstrated that CREB1 becomes phosphorylated in a dose-dependent manner after HU (100-400 µmol/L) treatment of K562 cells for 72 h. 4. We also investigated role of a Gγ promoter CREB1 response element (G-CRE) in this pathway. Quantitative amplification refractory mutation system-polymerase chain reaction experiments were performed to demonstrate that HU induces the expression of both Gγ and Aγ in this cell line. In addition, electrophoretic mobility shift assays were used to show that levels of CREB1 complexes binding to the G-CRE site are increased following HU treatment and are decreased in CREB1-knockdown cells. 5. The results suggest that CREB1 is necessary for γ-globin induction by HU in K562 cells, a role that may be mediated, in part, through the G-CRE element.
Collapse
Affiliation(s)
- Mehdi Banan
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Banan M. Hydroxyurea treatment in β-thalassemia patients: to respond or not to respond? Ann Hematol 2013; 92:289-99. [PMID: 23318979 DOI: 10.1007/s00277-012-1671-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Accepted: 12/29/2012] [Indexed: 01/03/2023]
Abstract
Hydroxyurea (HU) is a drug that induces fetal hemoglobin production. As a result, HU is widely used to treat β-thalassemia (β-thal) patients. However, the response of these patients to HU varies. Some β-thal patients respond favorably to treatment while others do not respond at all. HU has a number of side-effects and therefore its targeted prescription is beneficial. Hence, identifying the genetic determinants which lead to the differential HU response is important. This review summarizes recent findings which have shed light on this topic. Special emphasis is given to the mechanisms and genetic loci which may govern these differences. These findings have helped identify several single nucleotide polymorphisms which associate with the response to HU in both β-thal and sickle cell disease patients.
Collapse
Affiliation(s)
- Mehdi Banan
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Evin, Daneshjoo Blvd., Koodakyar St, Tehran, Iran.
| |
Collapse
|
20
|
Abstract
Erythropoietin (Epo) is an essential hormone that binds and activates the Epo receptor (EpoR) resident on the surface of erythroid progenitor cells, thereby promoting erythropoiesis. Recombinant human erythropoietin has been used successfully for over 20 years to treat anemia in millions of patients. In addition to erythropoiesis, Epo has also been reported to have other effects, such as tissue protection and promotion of tumor cell growth or survival. This became of significant concern in 2003, when some clinical trials in cancer patients reported increased tumor progression and worse survival outcomes in patients treated with erythropoiesis-stimulating agents (ESAs). One of the potential mechanisms proffered to explain the observed safety issues was that functional EpoR was expressed in tumors and/or endothelial cells, and that ESAs directly stimulated tumor growth and/or antagonized tumor ablative therapies. Since then, numerous groups have performed further research evaluating this potential mechanism with conflicting data and conclusions. Here, we review the biology of endogenous Epo and EpoR expression and function in erythropoiesis, and evaluate the evidence pertaining to the expression of EpoR on normal nonhematopoietic and tumor cells.
Collapse
|
21
|
Yien YY, Bieker JJ. Functional interactions between erythroid Krüppel-like factor (EKLF/KLF1) and protein phosphatase PPM1B/PP2Cβ. J Biol Chem 2012; 287:15193-204. [PMID: 22393050 DOI: 10.1074/jbc.m112.350496] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Erythroid Krüppel-like factor (EKLF; KLF1) is an erythroid-specific transcription factor required for the transcription of genes that regulate erythropoiesis. In this paper, we describe the identification of a novel EKLF interactor, Ppm1b, a serine-threonine protein phosphatase that has been implicated in the attenuation of NFκB signaling and the regulation of Cdk9 phosphorylation status. We show that Ppm1b interacts with EKLF via its PEST1 sequence. However, its genetic regulatory role is complex. Using a promoter-reporter assay in an erythroid cell line, we show that Ppm1b superactivates EKLF at the β-globin and BKLF promoters, dependent on intact Ppm1b phosphatase activity. Conversely, depletion of Ppm1b in CD34(+) cells leads to a higher level of endogenous β-globin gene activation after differentiation. We also observe that Ppm1b likely has an indirect role in regulating EKLF turnover via its zinc finger domain. Together, these studies show that Ppm1b plays a multilayered role in regulating the availability and optimal activity of the EKLF protein in erythroid cells.
Collapse
Affiliation(s)
- Yvette Y Yien
- Department of Developmental and Regenerative Biology, The Mount Sinai School of Medicine, New York, New York 10029, USA
| | | |
Collapse
|
22
|
Abstract
Although anemia is common in Shwachman- Diamond syndrome (SDS), the underlying mechanism remains unclear. We asked whether SBDS, which is mutated in most SDS patients, is critical for erythroid development. We found that SBDS expression is high early during erythroid differentiation. Inhibition of SBDS in CD34(+) hematopoietic stem cells and early progenitors (HSC/Ps) and K562 cells led to slow cell expansion during erythroid differentiation. Induction of erythroid differentiation resulted in markedly accelerated apoptosis in the knockdown cells; however, proliferation was only mildly reduced. The percentage of cells entering differentiation was not reduced. Differentiation also increased the oxidative stress in SBDS-knockdown K562 cells, and antioxidants enhanced the expansion capability of differentiating SBDS-knockdown K562 cells and colony production of SDS patient HSC/Ps. Erythroid differentiation also resulted in reduction of all ribosomal subunits and global translation. Furthermore, stimulation of global translation with leucine improved the erythroid cell expansion of SBDS-knockdown cells and colony production of SDS patient HSC/Ps. Leucine did not reduce the oxidative stress in SBDS-deficient K562 cells. These results demonstrate that SBDS is critical for normal erythropoiesis. Erythropoietic failure caused by SBDS deficiency is at least in part related to elevated ROS levels and translation insufficiency because antioxidants and leucine improved cell expansion.
Collapse
|
23
|
Wu XR, Xue M, Li XF, Wang Y, Wang J, Han QL, Yi ZC. Phenolic metabolites of benzene inhibited the erythroid differentiation of K562 cells. Toxicol Lett 2011; 203:190-9. [PMID: 21414390 DOI: 10.1016/j.toxlet.2011.03.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2010] [Revised: 03/06/2011] [Accepted: 03/07/2011] [Indexed: 01/27/2023]
Abstract
Benzene is a common occupational hazard and a ubiquitous environmental pollutant. Benzene exposure at the levels even below 1ppm still showed hematotoxicity. It is widely accepted that the metabolites of benzene play important roles in the benzene toxicity to the hematopoietic system, but little is known about the effects of benzene metabolites on erythropoiesis. In present study, erythroid progenitor-like K562 cells were used to determine the effects of phenolic metabolites of benzene, including phenol, hydroquinone and 1,2,4-benzenetriol, on the erythroid differentiation. After the treatment with these benzene metabolites at the concentrations with no obvious cytotoxicity, the hemin-induced hemoglobin synthesis in K562 cells decreased in a concentration- and time-dependent manner, and the expression of CD71 and GPA protein on the surface of K562 cells was also inhibited. The reverse transcription-PCR was used to determine the mRNA level of the erythroid related genes in the K562 cells that were treated with benzene metabolites. The hemin-induced expression of globin genes, including α-, β- and γ-globin genes, and the gene encoding the heme synthesis enzyme porphobilinogen deaminase was inhibited by benzene metabolites. When the K562 cells were pretreated with benzene metabolites, the hemin-induced expression of two transcription factor genes GATA-1 and NF-E2 was distinctly reduced, and the pre-treatment with benzene metabolites promoted the decrease of the mRNA level of transcription factor gene GATA-2 by hemin. These results indicated that benzene metabolites inhibited the hemin-induced erythroid differentiation through affecting the transcription of the erythroid related genes.
Collapse
Affiliation(s)
- Xiao-Rong Wu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
| | | | | | | | | | | | | |
Collapse
|
24
|
Zein S, Li W, Ramakrishnan V, Lou TF, Sivanand S, Mackie A, Pace B. Identification of fetal hemoglobin-inducing agents using the human leukemia KU812 cell line. Exp Biol Med (Maywood) 2010; 235:1385-94. [PMID: 20975082 DOI: 10.1258/ebm.2010.010129] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Fetal hemoglobin (HbF) ameliorates the clinical severity of sickle cell disease; therefore continued research to identify efficacious HbF-inducing agents is desirable. In this study, we investigated KU812 leukemia cells that express the fetal γ-globin and adult β-globin genes, as a system for screening and discovery of novel HbF inducers. KU812 cells were analyzed in the presence or absence of fetal bovine serum and then expression levels of the globin genes, cell surface markers and transcription factors were quantified by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). For comparison, primary erythroid cells were grown in a two-phase liquid culture system. After drug inductions for 48-72 h, globin mRNA and HbF levels were quantified by RT-qPCR and enzyme-linked immunosorbent assay, respectively. Erythroid markers and transcription factors expression levels in KU812 cells were comparable to days 7-14 erythroid cells. We also tested several drugs including butyrate, trichostatin A, scriptaid, suberoylanilide hydroxamic acid and hydroxyurea, which induced γ-globin in KU812 cells; however, some agents also induced β-globin. A novel agent STI-571 was studied in the system, which non-selectively induced the globin genes. Additional studies showed comparable globin gene response patterns in KU812 and primary erythroid cells after treatments with the various drug inducers. Mechanisms of drug-mediated γ-globin induction in KU812 cells require signaling through the p38 mitogen-activated protein kinase pathway similar to that previously demonstrated in primary erythroid cells. These data suggest that KU812 cells serve as a good screening system to identify potential HbF inducers for the treatment of β-hemoglobinopathies.
Collapse
Affiliation(s)
- Sima Zein
- Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | | | | | | | | | | | | |
Collapse
|
25
|
Simanovsky M, Berlinsky S, Sinai P, Leiba M, Nagler A, Galski H. Phenotypic and gene expression diversity of malignant cells in human blast crisis chronic myeloid leukemia. Differentiation 2008; 76:908-22. [PMID: 18452548 DOI: 10.1111/j.1432-0436.2008.00270.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Chronic myeloid leukemia (CML) is considered as a paradigm of neoplasias developing through multistep track. It is believed that in the blast crisis (BC) terminal phase of the disease, blood-circulating blasts represent an expansion of a single CML clone. However, although these blasts grow mostly in suspension under standard culture conditions, a relatively small cell-fraction adheres to the plastic dish. Yet, it is unknown whether these two cell-fractions are distinct sub-populations that originated from a common CML clone and whether they have different biological and malignant properties. To address these questions, we have characterized the plastic-adherent and non-adherent sub-populations of various cell lines and primary cells derived from patients with CML in BC. This study indicated that the adherent-subsets retain repopulating ability with indications of increased malignant properties as greater anchorage-independent clonogenicity, impairment of cell-cell contact inhibition, loss of serum-dependent attenuation of plastic-adhesion, and a significant up-regulation of the oncogenes BCR-ABL, c-JUN, and c-FOS along with the adhesion-related genes KiSS-1, THBS3, and ITGB5. The adherent blasts stably retain their unique properties even after elimination of the adherence selection pressure. Sub-cloning analyses indicated that the adherent cells could be continuously evolved from any parental non-adherent clone in a unidirectional manner. This study provides new insights into the biology and the malignant evolution of CML, indicating that at the BC phase, circulating blasts are heterogeneous and consisting of at least two distinct populations of a common clonal origin. The existence of a minor "pool" of blasts of greater clonogenic capacity along with significantly higher expression level of BCR-ABL, individually or in conjunction with other cancer and adhesion-related genes, might also signify clonal evolution toward subsequent increased malignancy and lower therapeutic sensitivity.
Collapse
Affiliation(s)
- Masha Simanovsky
- Division of Hematology and Bone Marrow Transplantation, Laboratory of Molecular Immunobiology, Chaim Sheba Medical Center, Tel Hashomer, Israel
| | | | | | | | | | | |
Collapse
|
26
|
Yamada H, Sekikawa T, Iwase S, Arakawa Y, Suzuki H, Agawa M, Akiyama M, Takeda N, Horiguchi-Yamada J. Segregation of megakaryocytic or erythroid cells from a megakaryocytic leukemia cell line (JAS-R) by adhesion during culture. Leuk Res 2007; 31:1537-43. [PMID: 17383723 DOI: 10.1016/j.leukres.2007.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2006] [Revised: 02/13/2007] [Accepted: 02/13/2007] [Indexed: 02/07/2023]
Abstract
Adhesion is one of the important biologic characteristics of leukemic cells. We previously reported a new megakaryocytic-erythroid cell line, JAS-R. In this study, JAS-R cells were segregated into two types by the differences of attachment to culture dishes. One type (designated as JAS-RAD cells) adhered to the substratum of the culture dishes, while the other (JAS-REN cells) grew as a single-cell suspension. Adhesion of JAS-RAD was inhibited by treatment with RGDS oligopeptide. Flow cytometric analysis revealed that JAS-RAD cells had high expression of CD41a and CD61 versus low CD235a expression, and JAS-REN showed low expression of CD41a, and CD61, and high CD235a. The two phenotypes were reciprocally exchangeable by selecting adherent or suspended cells from each type of culture. Microarray analysis and RT-PCR revealed that JAS-RAD cells expressed four major alpha-granule genes and JAS-REN cells expressed beta-globin. Interestingly, erythropoietin was only secreted by JAS-RAD cells. With regard to transcription factors, it was shown that GFI1, FLI1 and RUNX1 were strongly expressed in JAS-RAD cells while GATA1, FOG1 and NFE2 were equally expressed by both types. These findings indicate that adhesion via integrins is related to the phenotypic shift of JAS-R cells between megakaryocytic and erythroid lineages.
Collapse
Affiliation(s)
- Hisashi Yamada
- Department of Molecular Genetics, Institute of DNA Medicine, The Jikei University, School of Medicine, 3-25-8 Nishi-Shinbashi, Tokyo, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
27
|
|
28
|
Isakari Y, Harada Y, Ishikawa D, Matsumura-Takeda K, Sogo S, Ishida T, Taki T, Kiwada H. Efficient gene expression in megakaryocytic cell line using nucleofection. Int J Pharm 2007; 338:157-64. [PMID: 17331684 DOI: 10.1016/j.ijpharm.2007.01.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2006] [Revised: 01/09/2007] [Accepted: 01/28/2007] [Indexed: 11/25/2022]
Abstract
To clarify the mechanism of platelet production from megakaryocytes, expression of target proteins by gene transfection was examined using various gene delivery techniques. Transfection into hematopoietic cells, including megakaryocytes, by conventional gene delivery techniques such as electroporation and lipofection are known to be difficult. In this study, in addition to electroporation and lipofection, we tested other gene-transfer methods (nucleofection, transfection using inactivated virus envelope, and transferrin-linked cationic polymer) with the green fluorescent protein (GFP) gene into the human megakaryocytic cell line MEG-01. We found that nucleofection, which uses a combination of special electrical parameters and specific solutions, was the best, judging from the expression ratio of GFP-positive cells (approximately 70% of cells) and low toxicity. The efficiency of GFP expression was not related to the amount of pDNA delivered into the MEG-01 cells. To verify the utility of nucleofection, the thrombopoietin (TPO) receptor c-mpl was transfected into MEG-01 cells. Transfected cells showed a higher responsiveness to TPO than mock-transfected MEG-01 cells. We propose that nucleofection is a useful method for transfecting target genes to megakaryocytic cells when addressing the mechanism of platelet production.
Collapse
Affiliation(s)
- Yoshimasa Isakari
- Department of Pharmacokinetics and Biopharmaceutics, Subdivision of Biopharmaceutical Sciences, Institute of Health Biosciences, The University of Tokushima, 1-78-1, Sho-machi, Tokushima 770-8505, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
29
|
Ninomiya M, Abe A, Yokozawa T, Ozeki K, Yamamoto K, Ito M, Ito M, Kiyoi H, Emi N, Naoe T. Establishment of a myeloid leukemia cell line, TRL-01, with MLL-ENL fusion gene. ACTA ACUST UNITED AC 2006; 169:1-11. [PMID: 16875930 DOI: 10.1016/j.cancergencyto.2005.09.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2005] [Revised: 09/08/2005] [Accepted: 09/09/2005] [Indexed: 10/24/2022]
Abstract
We established a leukemia cell line derived from therapy-related acute myeloid leukemia with the t(11;19) by xenotransplantation into the NOD/SCID mouse with IL-2Rgamma(c)-/- (NOG mouse). The cell line, TRL-01, could be serially transplanted from mouse to mouse and also grown in an adherence-dependent manner on a murine bone marrow stroma cell line, HESS-5. TRL-01 had the same immunophenotype as the original leukemia cells: positive for CD13, CD33, CD11a, CD18, CD29, CD49d, CD49e, CD54, CD62L, and CD117, and negative for CD3, CD4, CD8, CD19, CD34, CD41a, CD41b, CD135, and myeloperoxidase. Translocation (11;19)(q23;p13) in both the original sample and TRL-01 generated MLL-ENL chimeric transcripts joining exon 6 and exon 4, respectively, which has a novel isoform. In cultures of TRL-01, addition of GM-CSF, SCF, and G-CSF and adhesion to fibronectin-coated plates promoted transient proliferation and survival, although they did not support long-term culture. Subcutaneous injection caused a tumor to form only when HESS-5 was coinjected at the same site. These results suggest that TRL-01 is a useful cell line for studying not only the leukemia-related biology of MLL-ENL but also the intercellular association between leukemia and stroma.
Collapse
Affiliation(s)
- Manabu Ninomiya
- Department of Hematology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|