1
|
Chen Q, Chen H, Kong H, Chen R, Gao S, Wang Y, Zhou P, Huang W, Cheng H, Li L, Feng J. Enzyme-free sensitive SERS biosensor for the detection of thalassemia-associated microRNA-210 using a cascade dual-signal amplification strategy. Anal Chim Acta 2024; 1292:342255. [PMID: 38309848 DOI: 10.1016/j.aca.2024.342255] [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: 10/25/2023] [Revised: 12/28/2023] [Accepted: 01/15/2024] [Indexed: 02/05/2024]
Abstract
BACKGROUND β-thalassemia is a blood disorder caused by autosomal mutations. Gene modulation therapy to activate the γ-globin gene to induce fetal hemoglobin (HbF) synthesis has become a new option for the treatment of β-thalassemia. MicroRNA-210 (miR-210) contributes to studying the mechanism regulating γ-globin gene expression and is a potential biomarker for rapid β-thalassemia screening. Traditional miRNA detection methods perform well but necessitate complex and time-consuming miRNA sample processing. Therefore, the development of a sensitive, accurate, and simple miRNA level monitoring method is essential. RESULTS We have developed a non-enzymatic surface-enhanced Raman scattering (SERS) biosensor utilizing a signal cascade amplification of catalytic hairpin assembly reaction (CHA) and proximity hybridization-induced hybridization chain reaction (HCR). Au@Ag NPs were used as the SERS substrate, and methylene blue (MB)- modified DNA hairpins were used as the SERS tags. The SERS assay involved two stages: implementing the CHA-HCR cascade signal amplification strategy and conducting SERS measurements on the resulting product. The HCR was started by the products of target-triggered CHA, which formed lengthy nicked double-stranded DNA (dsDNA) on the Au@Ag NPs surface to which numerous SERS tags were attached, leading to a significant increase in the SERS signal intensity. High specificity and sensitivity for miR-210 detection was achieved by monitoring MB SERS intensity changes. The suggested SERS biosensor has a low detection limit of 5.13 fM and is capable of detecting miR-210 at concentration between 10 fM and 1.0 nM. SIGNIFICANCE The biosensor can detect miR-210 levels in the erythrocytes of β-thalassemia patients, enabling rapid screening for β-thalassemia and suggesting a novel approach for investigating the regulation mechanism of miR-210 on γ-globin gene expression. In the meantime, this innovative technique has the potential to detect additional miRNAs and to become an important tool for the early diagnosis of diseases and for biomedical research.
Collapse
Affiliation(s)
- Qiying Chen
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Department of Medicine/ College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China
| | - Huagan Chen
- Department of Clinical Laboratory, Liuzhou Maternity and Child Healthcare Hospital, Liuzhou, 545001, Guangxi, PR China
| | - Hongxing Kong
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Department of Medicine/ College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China; Provine and Ministry Co-sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry, Nanning, 530004, Guangxi, PR China
| | - Ruijue Chen
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Department of Medicine/ College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China
| | - Si Gao
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Department of Medicine/ College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China
| | - Ying Wang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Department of Medicine/ College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China
| | - Pei Zhou
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Department of Medicine/ College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China
| | - Wenyi Huang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Department of Medicine/ College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China; Provine and Ministry Co-sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry, Nanning, 530004, Guangxi, PR China
| | - Hao Cheng
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Department of Medicine/ College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China; Provine and Ministry Co-sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry, Nanning, 530004, Guangxi, PR China
| | - Lijun Li
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Department of Medicine/ College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China; Provine and Ministry Co-sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry, Nanning, 530004, Guangxi, PR China.
| | - Jun Feng
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Department of Medicine/ College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, PR China.
| |
Collapse
|
2
|
Iftikhar F, Khan MBN, Tehreem S, Kanwal N, Musharraf SG. BCL11A-targeted γ-globin gene induction by triterpenoid glycosides of Fagonia indica: A preclinical scientific validation of indigenous herb for the treatment of β-hemoglobinopathies. Bioorg Chem 2023; 140:106768. [PMID: 37586133 DOI: 10.1016/j.bioorg.2023.106768] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/18/2023]
Abstract
Pharmacological induction of fetal hemoglobin has proven to be a promising therapeutic intervention in β-hemoglobinopathies by reducing the globin chain imbalance and inhibiting sickle cell polymerization. Fagonia indica has shown therapeutic relevance to β-thalassemia. Therefore, we study the ethnopharmacological potential of Fagonia indica and its biomarker compounds for their HbF induction ability for the treatment of β-thalassemia. Here, we identify, compound 8 (triterpenoid glycosides) of F. indica. as a prominent HbF inducer in-vitro and in-vivo. Compound 8 showed potent erythroid differentiation, enhanced cellular proliferation, ample accumulation of total hemoglobin, and a strong notion of γ-globin gene expression in K562 cultures. Compound 8 treatment also revealed strong induction of erythroid differentiation and fetal hemoglobin mRNA and protein in adult erythroid precursor cells. This induction was associated with simultaneous downregulation of BCL11A and SOX6, and overexpression of the GATA-1 gene, suggesting a compound 8-mediated partial mechanism involved in the reactivation of fetal-like globin genes. The in vivo study with compound 8 (10 mg/kg) in β-YAC mice resulted in significant HbF synthesis demonstrated by the enhanced level of F-cells (84.14 %) and an 8.85-fold increase in the γ-globin gene. Overall, the study identifies compound 8 as a new HbF-inducing entity and provides an early "proof-of-concept" to enable the initiation of preclinical and clinical studies in the development of this HbF-inducing agent for β-thalassemia.
Collapse
Affiliation(s)
- Fizza Iftikhar
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Muhammad Behroz Naeem Khan
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Syeda Tehreem
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Nayab Kanwal
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Syed Ghulam Musharraf
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
| |
Collapse
|
3
|
Finotti A, Gasparello J, Zuccato C, Cosenza LC, Fabbri E, Bianchi N, Gambari R. Effects of Mithramycin on BCL11A Gene Expression and on the Interaction of the BCL11A Transcriptional Complex to γ-Globin Gene Promoter Sequences. Genes (Basel) 2023; 14:1927. [PMID: 37895276 PMCID: PMC10606601 DOI: 10.3390/genes14101927] [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: 09/11/2023] [Revised: 09/28/2023] [Accepted: 10/04/2023] [Indexed: 10/29/2023] Open
Abstract
The anticancer drug mithramycin (MTH), has been proposed for drug repurposing after the finding that it is a potent inducer of fetal hemoglobin (HbF) production in erythroid precursor cells (ErPCs) from β-thalassemia patients. In this respect, previously published studies indicate that MTH is very active in inducing increased expression of γ-globin genes in erythroid cells. This is clinically relevant, as it is firmly established that HbF induction is a valuable approach for the therapy of β-thalassemia and for ameliorating the clinical parameters of sickle-cell disease (SCD). Therefore, the identification of MTH biochemical/molecular targets is of great interest. This study is inspired by recent robust evidence indicating that the expression of γ-globin genes is controlled in adult erythroid cells by different transcriptional repressors, including Oct4, MYB, BCL11A, Sp1, KLF3 and others. Among these, BCL11A is very important. In the present paper we report evidence indicating that alterations of BCL11A gene expression and biological functions occur during MTH-mediated erythroid differentiation. Our study demonstrates that one of the mechanisms of action of MTH is a down-regulation of the transcription of the BCL11A gene, while a second mechanism of action is the inhibition of the molecular interactions between the BCL11A complex and specific sequences of the γ-globin gene promoter.
Collapse
Affiliation(s)
- Alessia Finotti
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, Ferrara University, 44121 Ferrara, Italy; (J.G.); (C.Z.); (L.C.C.); (E.F.); (N.B.)
| | - Jessica Gasparello
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, Ferrara University, 44121 Ferrara, Italy; (J.G.); (C.Z.); (L.C.C.); (E.F.); (N.B.)
| | - Cristina Zuccato
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, Ferrara University, 44121 Ferrara, Italy; (J.G.); (C.Z.); (L.C.C.); (E.F.); (N.B.)
| | - Lucia Carmela Cosenza
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, Ferrara University, 44121 Ferrara, Italy; (J.G.); (C.Z.); (L.C.C.); (E.F.); (N.B.)
| | - Enrica Fabbri
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, Ferrara University, 44121 Ferrara, Italy; (J.G.); (C.Z.); (L.C.C.); (E.F.); (N.B.)
| | - Nicoletta Bianchi
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, Ferrara University, 44121 Ferrara, Italy; (J.G.); (C.Z.); (L.C.C.); (E.F.); (N.B.)
- Department of Translational Medicine and for Romagna, Ferrara University, 44121 Ferrara, Italy
| | - Roberto Gambari
- Center “Chiara Gemmo and Elio Zago” for the Research on Thalassemia, Ferrara University, 44121 Ferrara, Italy
| |
Collapse
|
4
|
Cort-Donmez A, Olgen S, Guner E, Akgun-Cagliyan G, Hanikoglu F, Tunc-Ata M, Kilic-Toprak E. Investigating the Activity of Indole-2-on Derivative Src Kinase Inhibitors Against Chronic Myeloid Leukemia Cells. Anticancer Agents Med Chem 2023; 23:113-122. [PMID: 35570519 DOI: 10.2174/1871520622666220513114205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 03/04/2022] [Accepted: 03/14/2022] [Indexed: 02/08/2023]
Abstract
BACKGROUND Src family tyrosine kinases play a potential role in Bcr-Abl-induced leukemogenesis. Src kinase inhibitors are reported as selective inhibitors of chronic myeloid leukemia. OBJECTIVE Since Src kinase inhibitors have an inhibitive effect on chronic myeloid leukemia, indole derivatives (C-1, C-2, C-3) previously found as potent inhibitors of Src kinase were tested against chronic myeloid leukemia in this study. METHODS Cell viability of K562 and R/K562 cells, antiproliferative and antioxidant effects, and inhibition profiles of Bcr-Abl kinase of indole derivatives were determined compared to dasatinib and imatinib. RESULTS The results showed that compounds affected cell proliferation and decreased the levels of Bcr/Abl. These results confirmed that the antileukemic activity of compounds was related to Bcr/Abl expression. Docking studies also presented that compounds are inhibitors of both Src and Abl kinases. Calculation of drug-like properties showed that compounds could be potential drug candidates. CONCLUSION Among indole-2-on derivatives, previously identified as Src kinase inhibitors, C-2 has been discovered to be a strong anticancer drug that is active against susceptible and resistant K562 cell lines and induces apoptosis.
Collapse
Affiliation(s)
- Aysegul Cort-Donmez
- Department of Medical Biochemistry, Faculty of Medicine, Pamukkale University 20160, Denizli, Turkey
| | - Sureyya Olgen
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Biruni University 34010, İstanbul, Turkey
| | - Ersin Guner
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Biruni University 34010, İstanbul, Turkey
| | - Gulsum Akgun-Cagliyan
- Department of Hematology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Ferhat Hanikoglu
- Department of Medical Biochemistry, Alanya Alaaddin Keykubat University 07450, Alanya, Antalya, Turkey
| | - Melek Tunc-Ata
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Emine Kilic-Toprak
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| |
Collapse
|
5
|
Walker AL, Crosby D, Miller V, Weidert F, Ofori-Acquah S. Hydroxyurea Decouples Persistent F-Cell Elevation and Induction of γ-Globin. Exp Hematol 2022; 112-113:15-23.e1. [PMID: 35843392 DOI: 10.1016/j.exphem.2022.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/24/2022] [Accepted: 07/08/2022] [Indexed: 11/04/2022]
Abstract
Mechanisms that control the fetal-to-adult hemoglobin switch are attractive therapeutic targets in sickle cell disease. In this study, we investigated developmental γ-globin silencing in the Townes humanized knock-in mouse model, which harbors a construct containing the human γ-, βA-, and βS-globin genes, and examined the utility of this model in evaluation of pharmacologic induction of fetal hemoglobin (HbF). We studied mouse pups on the day of delivery (P0) to 28 days after birth (P28). Regardless of the hemoglobin genotype (SS, AS, or AA), the proportion of F cells in peripheral blood was 100% at P0, declined sharply to 20% at P2, and was virtually undetectable at P14. Developmental γ-globin silencing in Townes mice was complete at P4 in association with significantly increased BCL11A expression in the primary erythropoietic organs of the mouse. Hydroxyurea given at P2 significantly sustained elevated percentages of F cells in mice at P14. However, the percentage of F cells declined at P14 for treatment begun at P4. A lack of augmentation of γ-globin mRNA in erythroid tissues suggests that the apparent increase in HbF in red cells caused by hydroxyurea was not due to sustained or re-activation of γ-globin transcription, but was instead a function of erythropoiesis suppression. Thus, we provide new details of the hemoglobin switch in the Townes murine model that recapitulates postnatal γ- to β-globin switch in humans and identify the myelosuppressive toxicity of hydroxyurea as a superseding factor in interpreting pharmacologic induction of HbF.
Collapse
Affiliation(s)
- Aisha L Walker
- Pittsburgh Heart Blood and Lung Vascular Medicine Institute, Department of Medicine, University of Pittsburgh, Pittsburgh, PA; Department of Pediatrics, Emory University, Atlanta, GA.
| | - Danielle Crosby
- Pittsburgh Heart Blood and Lung Vascular Medicine Institute, Department of Medicine, University of Pittsburgh, Pittsburgh, PA
| | - Valerie Miller
- Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA
| | - Frances Weidert
- Department of Neurosurgery, University of Florida, Gainesville, FL
| | - Solomon Ofori-Acquah
- Pittsburgh Heart Blood and Lung Vascular Medicine Institute, Department of Medicine, University of Pittsburgh, Pittsburgh, PA; School of Biomedical and Allied Health Sciences, Accra, Ghana
| |
Collapse
|
6
|
LRF Promotes Indirectly Advantageous Chromatin Conformation via BGLT3-lncRNA Expression and Switch from Fetal to Adult Hemoglobin. Int J Mol Sci 2022; 23:ijms23137025. [PMID: 35806029 PMCID: PMC9266405 DOI: 10.3390/ijms23137025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 02/01/2023] Open
Abstract
The hemoglobin switch from fetal (HbF) to adult (HbA) has been studied intensively as an essential model for gene expression regulation, but also as a beneficial therapeutic approach for β-hemoglobinopathies, towards the objective of reactivating HbF. The transcription factor LRF (Leukemia/lymphoma-related), encoded from the ZBTB7A gene has been implicated in fetal hemoglobin silencing, though has a wide range of functions that have not been fully clarified. We thus established the LRF/ZBTB7A-overexpressing and ZBTB7A-knockdown K562 (human erythroleukemia cell line) clones to assess fetal vs. adult hemoglobin production pre- and post-induction. Transgenic K562 clones were further developed and studied under the influence of epigenetic chromatin regulators, such as DNA methyl transferase 3 (DNMT3) and Histone Deacetylase 1 (HDAC1), to evaluate LRF’s potential disturbance upon the aberrant epigenetic background and provide valuable information of the preferable epigenetic frame, in which LRF unfolds its action on the β-type globin’s expression. The ChIP-seq analysis demonstrated that LRF binds to γ-globin genes (HBG2/1) and apparently associates BCL11A for their silencing, but also during erythropoiesis induction, LRF binds the BGLT3 gene, promoting BGLT3-lncRNA production through the γ-δ intergenic region of β-type globin’s locus, triggering the transcriptional events from γ- to β-globin switch. Our findings are supported by an up-to-date looping model, which highlights chromatin alterations during erythropoiesis at late stages of gestation, to establish an “open” chromatin conformation across the γ-δ intergenic region and accomplish β-globin expression and hemoglobin switch.
Collapse
|
7
|
Hashemi Z, Ebrahimzadeh MA. Hemoglobin F (HbF) inducers; History, Structure and Efficacies. Mini Rev Med Chem 2021; 22:52-68. [PMID: 34036918 DOI: 10.2174/1389557521666210521221615] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 12/03/2020] [Accepted: 03/15/2021] [Indexed: 11/22/2022]
Abstract
Inherited beta-thalassemia is a major disease caused by irregular production of hemoglobin through reducing beta-globin chains. It has been observed that increasing fetal hemoglobin (HbF) production improves symptoms in the patients. Therefore, an increase in the level of HbF has been an operative approach for treating patients with beta-thalassemia. This review represents compounds with biological activities and pharmacological properties that can promote the HBF level and therefore used in the β-thalassemia patients' therapy. Various natural products with different mechanisms of action can be helpful in this medication cure. Clinical trials were efficient in improving the signs of patients. Association of in vivo, and in vitro studies of HbF induction and γ-globin mRNA growth displays that in vitro experiments could be an indicator of the in vivo response. The current study shows that; (a) HbF inducers can be grouped in several classes based on their chemical structures and mechanism of actions; b) According to several clinical trials, well-known drugs such as hydroxyurea and decitabine are useful HbF inducers; (c) The cellular biosensor K562 carrying genes under the control of the human γ-globin and β-globin gene promoters were applied during the researches; d) New natural products and lead compounds were found based on various studies as HbF inducers.
Collapse
Affiliation(s)
- Zahra Hashemi
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohammad Ali Ebrahimzadeh
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
| |
Collapse
|
8
|
BCL11A: a potential diagnostic biomarker and therapeutic target in human diseases. Biosci Rep 2020; 39:220893. [PMID: 31654056 PMCID: PMC6851505 DOI: 10.1042/bsr20190604] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 12/16/2022] Open
Abstract
Transcription factor B-cell lymphoma/leukemia 11A (BCL11A) gene encodes a zinc-finger protein that is predominantly expressed in brain and hematopoietic tissue. BCL11A functions mainly as a transcriptional repressor that is crucial in brain, hematopoietic system development, as well as fetal-to-adult hemoglobin switching. The expression of this gene is regulated by microRNAs, transcription factors and genetic variations. A number of studies have recently shown that BCL11A is involved in β-hemoglobinopathies, hematological malignancies, malignant solid tumors, 2p15-p16.1 microdeletion syndrome, and Type II diabetes. It has been suggested that BCL11A may be a potential prognostic biomarker and therapeutic target for some diseases. In this review, we summarize the current research state of BCL11A, including its biochemistry, expression, regulation, function, and its possible clinical application in human diseases.
Collapse
|
9
|
Li J, Lai Y, Shi L. BCL11A Down-Regulation Induces γ-Globin in Human β-Thalassemia Major Erythroid Cells. Hemoglobin 2019; 42:225-230. [PMID: 30821197 DOI: 10.1080/03630269.2018.1515774] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Fetal hemoglobin (Hb F, α2γ2) is a potent genetic modifier of the severity of β-thalassemia (β-thal) and sickle cell anemia. Differences in the levels of HbF that persist into adulthood affect the severity of sickle cell disease and the β-thal syndromes. B-cell lymphoma 11 A (BCL11A) is a potent silencer of HbF. Here, we reactivated γ-globin expression by down-regulating BCL11A to alleviate anemia in the β-thal major (β-TM) patients. BCL11A were down-regulated by lentiviral RNAi (RNA interference) in the K562 cell line and an in vitro culture model of human erythropoiesis in which erythroblasts are derived from the normal donor mononuclear cells (MNC) or β-TM MNC. The expression of γ-globin were analyzed by qPCR (quantitative real-time polymerase chain reaction) and Western blot techniques. Our data showed that down-regulation of BCL11A induces γ-globin production in the K562 cell line and human erythrocytes from normal donors and β-TM donors, without altering erythroid maturation. This is the first report on γ-globin induction by down-regulation of BCL11A in human erythroblasts derived from β-TM.
Collapse
Affiliation(s)
- Jing Li
- a Department of Hematology , The First Affiliated Hospital of Guangxi Medical University , Nanning , Guangxi Zhuang Autonomous Region , People's Republic of China
| | - Yongrong Lai
- a Department of Hematology , The First Affiliated Hospital of Guangxi Medical University , Nanning , Guangxi Zhuang Autonomous Region , People's Republic of China
| | - Lingling Shi
- a Department of Hematology , The First Affiliated Hospital of Guangxi Medical University , Nanning , Guangxi Zhuang Autonomous Region , People's Republic of China
| |
Collapse
|
10
|
Afantitis A, Leonis G, Gambari R, Melagraki G. Consensus Predictive Model for Human K562 Cell Growth Inhibition through Enalos Cloud Platform. ChemMedChem 2018; 13:555-563. [PMID: 29195008 DOI: 10.1002/cmdc.201700675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Indexed: 12/27/2022]
Abstract
β-Thalassemia is an inherited hematologic disorder caused by various mutations of the β-globin gene, thus resulting in a significant decrease in adult hemoglobin (HbA) production. An increase in fetal hemoglobin (HbF) levels by drug molecules is considered of great potential in β-thalassemia treatment and is expected to counterbalance the impaired production of HbA. In this work, based on a set of 129 experimentally tested biological inhibitors, we developed and validated a computational model for the prediction of K562 functional inhibition, possibly associated with HbF induction. To facilitate future advancements in the field, we incorporated our model into Enalos Cloud Platform, which enabled online access to our computational scheme (http://enalos.insilicotox.com/K562) through a user-friendly interface. This web service is offered to the wider community to promote in silico drug discovery through fast and reliable predictions.
Collapse
Affiliation(s)
| | | | - Roberto Gambari
- Department of Life Sciences and Biotechnology, University of Ferrara, Via Fossato di Mortara n.74, 44121, Ferrara, Italy
| | - Georgia Melagraki
- Department of Military Sciences, Division of Physical Sciences and Applications, Hellenic Army Academy Vari, Greece
| |
Collapse
|
11
|
Gasparello J, Fabbri E, Bianchi N, Breveglieri G, Zuccato C, Borgatti M, Gambari R, Finotti A. BCL11A mRNA Targeting by miR-210: A Possible Network Regulating γ-Globin Gene Expression. Int J Mol Sci 2017; 18:ijms18122530. [PMID: 29186860 PMCID: PMC5751133 DOI: 10.3390/ijms18122530] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 11/16/2017] [Accepted: 11/22/2017] [Indexed: 01/23/2023] Open
Abstract
The involvement of microRNAs in the control of repressors of human γ-globin gene transcription has been firmly demonstrated, as described for the miR-486-3p mediated down-regulation of BCL11A. On the other hand, we have reported that miR-210 is involved in erythroid differentiation and, possibly, in γ-globin gene up-regulation. In the present study, we have identified the coding sequence of BCL11A as a possible target of miR-210. The following results sustain this hypothesis: (a) interactions between miR-210 and the miR-210 BCL11A site were demonstrated by SPR-based biomolecular interaction analysis (BIA); (b) the miR-210 site of BCL11A is conserved through molecular evolution; (c) forced expression of miR-210 leads to decrease of BCL11A-XL and increase of γ-globin mRNA content in erythroid cells, including erythroid precursors isolated from β-thalassemia patients. Our study suggests that the coding mRNA sequence of BCL11A can be targeted by miR-210. In addition to the theoretical point of view, these data are of interest from the applied point of view, supporting a novel strategy to inhibit BCL11A by mimicking miR-210 functions, accordingly with the concept supported by several papers and patent applications that inhibition of BCL11A is an efficient strategy for fetal hemoglobin induction in the treatment of β-thalassemia.
Collapse
Affiliation(s)
- Jessica Gasparello
- Department of Life Sciences and Biotechnology, Ferrara University, 44121 Ferrara, Italy; (J.G.); (E.F.); (N.B.); (G.B.); (C.Z.); (M.B.)
- Laboratory for the Development of Pharmacological and Pharmacogenomic Therapy of Thalassaemia, Biotechnology Center, Ferrara University, 44121 Ferrara, Italy
| | - Enrica Fabbri
- Department of Life Sciences and Biotechnology, Ferrara University, 44121 Ferrara, Italy; (J.G.); (E.F.); (N.B.); (G.B.); (C.Z.); (M.B.)
| | - Nicoletta Bianchi
- Department of Life Sciences and Biotechnology, Ferrara University, 44121 Ferrara, Italy; (J.G.); (E.F.); (N.B.); (G.B.); (C.Z.); (M.B.)
| | - Giulia Breveglieri
- Department of Life Sciences and Biotechnology, Ferrara University, 44121 Ferrara, Italy; (J.G.); (E.F.); (N.B.); (G.B.); (C.Z.); (M.B.)
- Laboratory for the Development of Pharmacological and Pharmacogenomic Therapy of Thalassaemia, Biotechnology Center, Ferrara University, 44121 Ferrara, Italy
| | - Cristina Zuccato
- Department of Life Sciences and Biotechnology, Ferrara University, 44121 Ferrara, Italy; (J.G.); (E.F.); (N.B.); (G.B.); (C.Z.); (M.B.)
| | - Monica Borgatti
- Department of Life Sciences and Biotechnology, Ferrara University, 44121 Ferrara, Italy; (J.G.); (E.F.); (N.B.); (G.B.); (C.Z.); (M.B.)
| | - Roberto Gambari
- Department of Life Sciences and Biotechnology, Ferrara University, 44121 Ferrara, Italy; (J.G.); (E.F.); (N.B.); (G.B.); (C.Z.); (M.B.)
- Laboratory for the Development of Pharmacological and Pharmacogenomic Therapy of Thalassaemia, Biotechnology Center, Ferrara University, 44121 Ferrara, Italy
- Correspondence: (R.G.); (A.F.); Tel.: +39-0532-974443 (R.G.); +39-0532-974510 (A.F.); Fax: +39-0532-974500 (R.G. & A.F.)
| | - Alessia Finotti
- Department of Life Sciences and Biotechnology, Ferrara University, 44121 Ferrara, Italy; (J.G.); (E.F.); (N.B.); (G.B.); (C.Z.); (M.B.)
- Laboratory for the Development of Pharmacological and Pharmacogenomic Therapy of Thalassaemia, Biotechnology Center, Ferrara University, 44121 Ferrara, Italy
- Correspondence: (R.G.); (A.F.); Tel.: +39-0532-974443 (R.G.); +39-0532-974510 (A.F.); Fax: +39-0532-974500 (R.G. & A.F.)
| |
Collapse
|
12
|
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
|