1
|
Ibanez V, Vaitkus K, Ruiz MA, Lei Z, Maienschein-Cline M, Arbieva Z, Lavelle D. Effect of the LSD1 inhibitor RN-1 on γ-globin and global gene expression during erythroid differentiation in baboons (Papio anubis). PLoS One 2023; 18:e0289860. [PMID: 38134183 PMCID: PMC10745162 DOI: 10.1371/journal.pone.0289860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
Elevated levels of Fetal Hemoglobin interfere with polymerization of sickle hemoglobin thereby reducing anemia, lessening the severity of symptoms, and increasing life span of patients with sickle cell disease. An affordable, small molecule drug that stimulates HbF expression in vivo would be ideally suited to treat the large numbers of SCD patients that exist worldwide. Our previous work showed that administration of the LSD1 (KDM1A) inhibitor RN-1 to normal baboons increased Fetal Hemoglobin (HbF) and was tolerated over a prolonged treatment period. HbF elevations were associated with changes in epigenetic modifications that included increased levels of H3K4 di-and tri-methyl lysine at the γ-globin promoter. While dramatic effects of the loss of LSD1 on hematopoietic differentiation have been observed in murine LSD1 gene deletion and silencing models, the effect of pharmacological inhibition of LSD1 in vivo on hematopoietic differentiation is unknown. The goal of these experiments was to investigate the in vivo mechanism of action of the LSD1 inhibitor RN-1 by determining its effect on γ-globin expression in highly purified subpopulations of bone marrow erythroid cells enriched for varying stages of erythroid differentiation isolated directly from baboons treated with RN-1 and also by investigating the effect of RN1 on the global transcriptome in a highly purified population of proerythroblasts. Our results show that RN-1 administered to baboons targets an early event during erythroid differentiation responsible for γ-globin repression and increases the expression of a limited number of genes including genes involved in erythroid differentiation such as GATA2, GFi-1B, and LYN.
Collapse
Affiliation(s)
- Vinzon Ibanez
- Department of Medicine, University of Illinois at Chicago, Chicago, Illinois, United States of America
- Jesse Brown VA Medical Center, Chicago, Illinois, United States of America
| | - Kestis Vaitkus
- Department of Medicine, University of Illinois at Chicago, Chicago, Illinois, United States of America
- Jesse Brown VA Medical Center, Chicago, Illinois, United States of America
| | - Maria Armila Ruiz
- Department of Medicine, University of Illinois at Chicago, Chicago, Illinois, United States of America
- Jesse Brown VA Medical Center, Chicago, Illinois, United States of America
| | - Zhengdeng Lei
- Research Informatics Core, University of Illinois at Chicago, Chicago, Illinois, United States of America
- Ambry Genetics, Aliso Viejo, California, United States of America
| | - Mark Maienschein-Cline
- Research Informatics Core, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Zarema Arbieva
- Genomics Research Core, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Donald Lavelle
- Department of Medicine, University of Illinois at Chicago, Chicago, Illinois, United States of America
- Jesse Brown VA Medical Center, Chicago, Illinois, United States of America
| |
Collapse
|
2
|
Louvrier C, El Khouri E, Grall Lerosey M, Quartier P, Guerrot AM, Bader Meunier B, Chican J, Mohammad M, Assrawi E, Daskalopoulou A, Arenas Garcia A, Copin B, Piterboth W, Dastot Le Moal F, Karabina SA, Amselem S, Giurgea I. De Novo Gain-Of-Function Variations in LYN Associated With an Early-Onset Systemic Autoinflammatory Disorder. Arthritis Rheumatol 2023; 75:468-474. [PMID: 36122175 DOI: 10.1002/art.42354] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 07/12/2022] [Accepted: 09/08/2022] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To identify the molecular basis of a severe systemic autoinflammatory disorder (SAID) and define its main phenotypic features, and to functionally assess the sequence variations identified in LYN, a gene encoding a nonreceptor tyrosine kinase. METHODS We used targeted next-generation sequencing and in vitro functional studies of Lyn phosphorylation state and Lyn-dependent NF-κB activity after expression of recombinant Lyn isoforms carrying different sequence variations. RESULTS We identified a de novo LYN variation (p.Tyr508His) in a patient presenting since birth with recurrent fever, chronic urticaria, atopic dermatitis, arthralgia, increased inflammatory biomarkers, and elevated plasma cytokine levels. We studied the consequences on Lyn phosphorylation state of the p.Tyr508His variation and of the 2 LYN variations reported so far (p.Tyr508Phe and p.Tyr508*), and found that all 3 variations prevent phosphorylation of residue 508 and lead to autophosphorylation of Tyr397. Additionally, these 3 LYN variations activate the NF-κB pathway. These results show a gain-of-function effect of the variations involving Tyr508 on Lyn activity. CONCLUSION This study demonstrates the pathogenicity of the first 3 LYN variations identified in SAID patients and delineates the phenotypic spectrum of a disease entity characterized by severe, early-onset, systemic inflammatory disease affecting neonates with no family history of SAID. All 3 LYN variations affect the same tyrosine residue located in the C-terminus of Lyn, thereby demonstrating the critical role of this residue in the proper regulation of Lyn activity in humans.
Collapse
Affiliation(s)
- Camille Louvrier
- Sorbonne Université, Inserm, Childhood Genetic Disorders, Hôpital Armand-Trousseau, and Département de Génétique médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Armand-Trousseau, Paris, France
| | - Elma El Khouri
- Sorbonne Université, Inserm, Childhood Genetic Disorders, Hôpital Armand-Trousseau, Paris, France
| | - Martine Grall Lerosey
- Département de pédiatrie et médecine de l'adolescent, CHU-Hôpitaux de Rouen, Rouen, France
| | - Pierre Quartier
- RAISE reference centre for rare diseases, Unité d'Immunologie-Hématologie et Rhumatologie pédiatrique, and Imagine Institute, Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Anne-Marie Guerrot
- Université de Rouen Normandie, Inserm Unit U1245, and Rouen University Hospital, Department of Genetics and Reference Center for Developmental Disorders, and Normandy Center for Genomic and Personalized Medicine, Rouen, France
| | - Brigitte Bader Meunier
- RAISE reference centre for rare diseases, Unité d'Immunologie-Hématologie et Rhumatologie pédiatrique, and Imagine Institute, Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Julie Chican
- Sorbonne Université, Inserm, Childhood Genetic Disorders, Hôpital Armand-Trousseau, Paris, France
| | - Malaïka Mohammad
- Sorbonne Université, Inserm, Childhood Genetic Disorders, Hôpital Armand-Trousseau, Paris, France
| | - Eman Assrawi
- Sorbonne Université, Inserm, Childhood Genetic Disorders, Hôpital Armand-Trousseau, Paris, France
| | - Aphrodite Daskalopoulou
- Sorbonne Université, Inserm, Childhood Genetic Disorders, Hôpital Armand-Trousseau, Paris, France
| | - Angela Arenas Garcia
- Sorbonne Université, Inserm, Childhood Genetic Disorders, Hôpital Armand-Trousseau, Paris, France
| | - Bruno Copin
- Département de Génétique médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Armand-Trousseau, Paris, France
| | - William Piterboth
- Département de Génétique médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Armand-Trousseau, Paris, France
| | - Florence Dastot Le Moal
- Département de Génétique médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Armand-Trousseau, Paris, France
| | - Sonia A Karabina
- Sorbonne Université, Inserm, Childhood Genetic Disorders, Hôpital Armand-Trousseau, Paris, France
| | - Serge Amselem
- Sorbonne Université, Inserm, Childhood Genetic Disorders, Hôpital Armand-Trousseau, and Département de Génétique médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Armand-Trousseau, Paris, France
| | - Irina Giurgea
- Sorbonne Université, Inserm, Childhood Genetic Disorders, Hôpital Armand-Trousseau, and Département de Génétique médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Armand-Trousseau, Paris, France
| |
Collapse
|
3
|
Song P, Cai YC, Chen MX, Chen SH, Chen JX. Enhanced phosphatidylserine exposure and erythropoiesis in Babesia microti-infected mice. Front Microbiol 2023; 13:1083467. [PMID: 36687590 PMCID: PMC9846230 DOI: 10.3389/fmicb.2022.1083467] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 12/08/2022] [Indexed: 12/02/2023] Open
Abstract
INTRODUCTION Babesia microti (B. microti) is the dominant species responsible for human babesiosis, which is associated with severe hemolytic anemia and splenomegaly because it infects mammalian erythrocytes. The actual prevalence of B. microti is thought to have been substantially underestimated. METHODS In this study, Bagg's albino/c (BALB/c) mice were intraperitoneally injected with B. microti-infected erythrocytes, and parasitemia was subsequently measured by calculating the proportion of infected erythrocytes. The ultrastructure of infected erythrocytes was observed using scanning and transmission electron microscopes. Quantifying phosphatidylserine (PS) exposure, oxidative stress, intracellular Ca2+, and erythropoiesis of erythrocytes were done using flow cytometry. The physiological indicators were analyzed using a Mindray BC-5000 Vet automatic hematology analyzer. RESULTS Of note, 40.7 ± 5.9% of erythrocytes changed their structure and shrunk in the B. microti-infected group. The percentage of annexin V-positive erythrocytes and the levels of reactive oxygen species (ROS) in the erythrocytes were higher in the B. microti-infected group than in the control group at 10 dpi. Significant splenomegaly and severe anemia were also observed following B. microti infection. The parasitemia level in the B. microti-infected splenectomized group was higher than that of the B. microti-infected sham group. The population of early erythroblasts increased, and the late erythroblasts decreased in both the bone marrow and spleen tissues of the B. microti-infected group at 10 dpi. DISCUSSION PS exposure and elevated ROS activities were hallmarks of eryptosis in the B. microti-infected group. This study revealed for the first time that B. microti could also induce eryptosis. At the higher parasitemia phase, the occurrence of severe anemia and significant changes in the abundance of erythroblasts in B. microti-infected mice group were established. The spleen plays a critical protective role in controlling B. microti infection and preventing anemia. B. microti infection could cause a massive loss of late erythroblasts and induce erythropoiesis.
Collapse
Affiliation(s)
- Peng Song
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, China
- NHC Key Laboratory of Parasite and Vector Biology, Ministry of Public Health, Shanghai, China
- WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, China
- Hainan Tropical Diseases Research Center (Chinese Center for Tropical Diseases Research, Hainan), Haikou, Hainan, China
| | - Yu-Chun Cai
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, China
- NHC Key Laboratory of Parasite and Vector Biology, Ministry of Public Health, Shanghai, China
- WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, China
| | - Mu-Xin Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, China
- NHC Key Laboratory of Parasite and Vector Biology, Ministry of Public Health, Shanghai, China
- WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, China
- Hainan Tropical Diseases Research Center (Chinese Center for Tropical Diseases Research, Hainan), Haikou, Hainan, China
| | - Shao-Hong Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, China
- NHC Key Laboratory of Parasite and Vector Biology, Ministry of Public Health, Shanghai, China
- WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, China
| | - Jia-Xu Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, China
- NHC Key Laboratory of Parasite and Vector Biology, Ministry of Public Health, Shanghai, China
- WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, China
- Hainan Tropical Diseases Research Center (Chinese Center for Tropical Diseases Research, Hainan), Haikou, Hainan, China
| |
Collapse
|
4
|
Song P, Cai YC, Chen MX, Chen SH, Chen JX. Enhanced phosphatidylserine exposure and erythropoiesis in Babesia microti-infected mice. Front Microbiol 2022; 13:1083467. [PMID: 36687590 PMCID: PMC9846230 DOI: 10.3389/fmicb.2023.1083467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 12/08/2022] [Indexed: 01/05/2023] Open
Abstract
Introduction Babesia microti (B. microti) is the dominant species responsible for human babesiosis, which is associated with severe hemolytic anemia and splenomegaly because it infects mammalian erythrocytes. The actual prevalence of B. microti is thought to have been substantially underestimated. Methods In this study, Bagg's albino/c (BALB/c) mice were intraperitoneally injected with B. microti-infected erythrocytes, and parasitemia was subsequently measured by calculating the proportion of infected erythrocytes. The ultrastructure of infected erythrocytes was observed using scanning and transmission electron microscopes. Quantifying phosphatidylserine (PS) exposure, oxidative stress, intracellular Ca2+, and erythropoiesis of erythrocytes were done using flow cytometry. The physiological indicators were analyzed using a Mindray BC-5000 Vet automatic hematology analyzer. Results Of note, 40.7 ± 5.9% of erythrocytes changed their structure and shrunk in the B. microti-infected group. The percentage of annexin V-positive erythrocytes and the levels of reactive oxygen species (ROS) in the erythrocytes were higher in the B. microti-infected group than in the control group at 10 dpi. Significant splenomegaly and severe anemia were also observed following B. microti infection. The parasitemia level in the B. microti-infected splenectomized group was higher than that of the B. microti-infected sham group. The population of early erythroblasts increased, and the late erythroblasts decreased in both the bone marrow and spleen tissues of the B. microti-infected group at 10 dpi. Discussion PS exposure and elevated ROS activities were hallmarks of eryptosis in the B. microti-infected group. This study revealed for the first time that B. microti could also induce eryptosis. At the higher parasitemia phase, the occurrence of severe anemia and significant changes in the abundance of erythroblasts in B. microti-infected mice group were established. The spleen plays a critical protective role in controlling B. microti infection and preventing anemia. B. microti infection could cause a massive loss of late erythroblasts and induce erythropoiesis.
Collapse
Affiliation(s)
- Peng Song
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, China.,NHC Key Laboratory of Parasite and Vector Biology, Ministry of Public Health, Shanghai, China.,WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, China.,Hainan Tropical Diseases Research Center (Chinese Center for Tropical Diseases Research, Hainan), Haikou, Hainan, China
| | - Yu-Chun Cai
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, China.,NHC Key Laboratory of Parasite and Vector Biology, Ministry of Public Health, Shanghai, China.,WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, China
| | - Mu-Xin Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, China.,NHC Key Laboratory of Parasite and Vector Biology, Ministry of Public Health, Shanghai, China.,WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, China.,Hainan Tropical Diseases Research Center (Chinese Center for Tropical Diseases Research, Hainan), Haikou, Hainan, China
| | - Shao-Hong Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, China.,NHC Key Laboratory of Parasite and Vector Biology, Ministry of Public Health, Shanghai, China.,WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, China
| | - Jia-Xu Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, China.,NHC Key Laboratory of Parasite and Vector Biology, Ministry of Public Health, Shanghai, China.,WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, China.,Hainan Tropical Diseases Research Center (Chinese Center for Tropical Diseases Research, Hainan), Haikou, Hainan, China
| |
Collapse
|
5
|
Constitutive activation of Lyn kinase enhances BCR responsiveness, but not the development of CLL in Eµ-TCL1 mice. Blood Adv 2020; 4:6106-6116. [PMID: 33351104 DOI: 10.1182/bloodadvances.2020002584] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 10/17/2020] [Indexed: 01/02/2023] Open
Abstract
The treatment of chronic lymphocytic leukemia (CLL) has been improved dramatically by inhibitors targeting B-cell receptor (BCR)-associated kinases. The tyrosine kinase Lyn is a key modulator of BCR signaling and shows increased expression and activity in CLL. To evaluate the functional relevance of Lyn for CLL, we generated a conditional knockin mouse model harboring a gain-of-function mutation of the Lyn gene (LynY508F), which was specifically expressed in the B-cell lineage (Lynup-B). Kinase activity profiling revealed an enhanced responsiveness to BCR stimulation in Lynup-B B cells. When crossing Lynup-B mice with Eµ-TCL1 mice (TCL1tg/wt), a transgenic mouse model for CLL, the resulting TCL1tg/wt Lynup-B mice showed no significant change of hepatomegaly, splenomegaly, bone marrow infiltration, or overall survival when compared with TCL1tg/wt mice. Our data also suggested that TCL1 expression has partially masked the effect of the Lynup-B mutation, because the BCR response was only slightly increased in TCL1tg/wt Lynup-B compared with TCL1tg/wt. In contrast, TCL1tg/wt Lynup-B were protected at various degrees against spontaneous apoptosis in vitro and upon treatment with kinase inhibitors targeting the BCR. Collectively, and consistent with our previous data in a Lyn-deficient CLL model, these data lend further suggest that an increased activation of Lyn kinase in B cells does not appear to be a major driver of leukemia progression and the level of increased BCR responsiveness induced by Lynup-B is insufficient to induce clear changes to CLL pathogenesis in vivo.
Collapse
|
6
|
Deciphering the Key Pharmacological Pathways and Targets of Yisui Qinghuang Powder That Acts on Myelodysplastic Syndromes Using a Network Pharmacology-Based Strategy. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:8877295. [PMID: 33488754 PMCID: PMC7787775 DOI: 10.1155/2020/8877295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 11/10/2020] [Accepted: 11/27/2020] [Indexed: 01/21/2023]
Abstract
Background Yisui Qinghuang powder (YSQHP) is an effective traditional Chinese medicinal formulation used for the treatment of myelodysplastic syndromes (MDS). However, its pharmacological mechanism of action is unclear. Materials and Methods In this study, the active compounds of YSQHP were screened using the traditional Chinese medicine systems pharmacology (TCMSP) and HerDing databases, and the putative target genes of YSQHP were predicted using the STITCH and DrugBank databases. Then, we further screened the correlative biotargets of YSQHP and MDS. Finally, the compound-target-disease (C-T-D) network was conducted using Cytoscape, while GO and KEGG analyses were conducted using R software. Furthermore, DDI-CPI, a web molecular docking analysis tool, was used to verify potential targets and pathways. Finally, binding site analysis was performed to identify core targets using MOE software. Results Our results identified 19 active compounds and 273 putative target genes of YSQHP. The findings of the C-T-D network revealed that Rb1, CASP3, BCL2, and MAPK3 showed the most number of interactions, whereas indirubin, tryptanthrin, G-Rg1, G-Rb1, and G-Rh2 showed the most number of potential targets. The GO analysis showed that 17 proteins were related with STPK activity, PUP ligase binding, and kinase regulator activity. The KEGG analysis showed that PI3K/AKT, apoptosis, and the p53 pathways were the main pathways involved. DDI-CPI identified the top 25 proteins related with PI3K/AKT, apoptosis, and the p53 pathways. CASP8, GSK3B, PRKCA, and VEGFR2 were identified as the correlative biotargets of DDI-CPI and PPI, and their binding sites were found to be indirubin, G-Rh2, and G-Rf. Conclusion Taken together, our results revealed that YSQHP likely exerts its antitumor effects by binding to CASP8, GSK3B, PRKCA, and VEGFR2 and by regulating the apoptosis, p53, and PI3K/AKT pathways.
Collapse
|
7
|
Tibaldi E, Federti E, Matte A, Iatcenko I, Wilson AB, Riccardi V, Pagano MA, De Franceschi L. Oxidation Impacts the Intracellular Signaling Machinery in Hematological Disorders. Antioxidants (Basel) 2020; 9:antiox9040353. [PMID: 32344529 PMCID: PMC7222375 DOI: 10.3390/antiox9040353] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/20/2020] [Accepted: 04/20/2020] [Indexed: 12/28/2022] Open
Abstract
The dynamic coordination between kinases and phosphatases is crucial for cell homeostasis, in response to different stresses. The functional connection between oxidation and the intracellular signaling machinery still remains to be investigated. In the last decade, several studies have highlighted the role of reactive oxygen species (ROS) as modulators directly targeting kinases, phosphatases, and downstream modulators, or indirectly acting on cysteine residues on kinases/phosphatases resulting in protein conformational changes with modulation of intracellular signaling pathway(s). Translational studies have revealed the important link between oxidation and signal transduction pathways in hematological disorders. The intricate nature of intracellular signal transduction mechanisms, based on the generation of complex networks of different types of signaling proteins, revealed the novel and important role of phosphatases together with kinases in disease mechanisms. Thus, therapeutic approaches to abnormal signal transduction pathways should consider either inhibition of overactivated/accumulated kinases or homeostatic signaling resetting through the activation of phosphatases. This review discusses the progress in the knowledge of the interplay between oxidation and cell signaling, involving phosphatase/kinase systems in models of globally distributed hematological disorders.
Collapse
Affiliation(s)
- Elena Tibaldi
- Department of Molecular Medicine, University of Padua, 35131 Padua, Italy; (E.T.); (M.A.P.)
| | - Enrica Federti
- Department of Medicine, University of Verona and AOUI Verona, 37134 Verona, Italy; (E.F.); (A.M.); (I.I.); (A.B.W.); (V.R.)
| | - Alessandro Matte
- Department of Medicine, University of Verona and AOUI Verona, 37134 Verona, Italy; (E.F.); (A.M.); (I.I.); (A.B.W.); (V.R.)
| | - Iana Iatcenko
- Department of Medicine, University of Verona and AOUI Verona, 37134 Verona, Italy; (E.F.); (A.M.); (I.I.); (A.B.W.); (V.R.)
| | - Anand B. Wilson
- Department of Medicine, University of Verona and AOUI Verona, 37134 Verona, Italy; (E.F.); (A.M.); (I.I.); (A.B.W.); (V.R.)
| | - Veronica Riccardi
- Department of Medicine, University of Verona and AOUI Verona, 37134 Verona, Italy; (E.F.); (A.M.); (I.I.); (A.B.W.); (V.R.)
| | - Mario Angelo Pagano
- Department of Molecular Medicine, University of Padua, 35131 Padua, Italy; (E.T.); (M.A.P.)
| | - Lucia De Franceschi
- Department of Medicine, University of Verona and AOUI Verona, 37134 Verona, Italy; (E.F.); (A.M.); (I.I.); (A.B.W.); (V.R.)
- Correspondence: ; Tel.: +39-045-812-4401
| |
Collapse
|
8
|
Kreisman NR, Wooliscroft LB, Campbell CF, Dotiwala AK, Cox ML, Denson AC, Betancourt AM, Tomchuck SL. Preconditioning hippocampal slices with hypothermia promotes rapid tolerance to hypoxic depolarization and swelling: Mediation by erythropoietin. Brain Res 2019; 1726:146517. [PMID: 31634451 DOI: 10.1016/j.brainres.2019.146517] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 08/06/2019] [Accepted: 10/17/2019] [Indexed: 12/26/2022]
Abstract
We suggested previously that hippocampal slices were protected from hypoxic depolarization and swelling by preincubating them at room temperature (Kreisman et al., 2000). We postulated that hypothermic preconditioning induced tolerance in our slices, which protected against hypoxic depolarization and swelling. Control hippocampal slices were incubated at 34-35 °C for two hours and the response to 10 min of severe hypoxia was compared to slices which were preconditioned for two hours at room temperature (22-23 °C) prior to warming to 34-35 °C. Recordings of the extracellular DC potential provided an index of tissue depolarization and changes in tissue light transmittance provided an index of swelling. Hypothermic preconditioning significantly reduced hypoxia-induced swelling, particularly in CA3 and the dentate inner blade. Since erythropoietin (EPO) had been shown to mediate hypoxic preconditioning, we tested whether EPO also mediated hypothermic preconditioning in our slices. Recombinant rat EPO (1-10 micromolar) mitigated hypoxia-induced swelling and depolarization in dentate inner blade of unconditioned slices in a dose-dependent manner. We also blocked the protective effects of hypothermic preconditioning on hypoxic depolarization and swelling in the inner blade of the dentate gyrus by administering soluble EPO receptor in the bath and treating slices with wortmannin to block phosphorylation of PI3 kinase, a critical step in the activation of the downstream neuroprotectant, Akt. These results suggest that EPO mediates tolerance to hypoxic depolarization and swelling induced by hypothermic preconditioning. They also emphasize that various preincubation protocols used in experiments with hippocampal slices may differentially affect basal electrophysiological and metabolic properties of those slices.
Collapse
Affiliation(s)
- Norman R Kreisman
- Department of Physiology, Tulane University School of Medicine, New Orleans, LA 70112, United States; Tulane Brain Institute, New Orleans, LA 70118, United States.
| | | | - Carolyn F Campbell
- Department of Physiology, Tulane University School of Medicine, New Orleans, LA 70112, United States; Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA 70112, United States
| | - Ary K Dotiwala
- Tulane Brain Institute, New Orleans, LA 70118, United States
| | - Michael L Cox
- Department of Physiology, Tulane University School of Medicine, New Orleans, LA 70112, United States
| | - Aaron C Denson
- Department of Physiology, Tulane University School of Medicine, New Orleans, LA 70112, United States
| | - Aline M Betancourt
- Department of Medicine, Tulane University School of Medicine, New Orleans, LA 70112, United States
| | - Suzanne L Tomchuck
- Department of Microbiology & Immunology, Tulane University School of Medicine, New Orleans, LA 70112, United States
| |
Collapse
|
9
|
Shi XQ, Yue SJ, Tang YP, Chen YY, Zhou GS, Zhang J, Zhu ZH, Liu P, Duan JA. A network pharmacology approach to investigate the blood enriching mechanism of Danggui buxue Decoction. JOURNAL OF ETHNOPHARMACOLOGY 2019; 235:227-242. [PMID: 30703496 DOI: 10.1016/j.jep.2019.01.027] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 01/21/2019] [Accepted: 01/26/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Danggui buxue Decoction (DBD) has been frequently used to treat with blood deficiency, which consisted of Danggui (DG) and Huangqi (HQ) at a ratio of 1:5. Accumulating evidence showed that blood deficiency in traditional Chinese medicine (TCM) was similar to anemia in modern medicine. AIM OF THE STUDY The purpose of this study was to explore its therapeutic mechanism of with network pharmacology approach. MATERIALS AND METHODS We explored the chemical compounds of DBD and used compound ADME screening to identify the potential compounds. Targets for the therapeutic actions of DBD were obtained from the PharmMapper, Swiss, SEA and STITCH. GO analysis and pathway enrichment analysis was performed using the DAVID webserver. Cytoscape was used to visualize the compound-target-pathway network for DBD. The pharmacodynamics and crucial targets were also validated. RESULTS Thirty-six potential active components in DBD and 49 targets which the active components acted on were identified. 47 KEGG pathways which DBD acted on were also come to light. And then, according to KEGG pathway annotation analysis, only 16 pathways seemed to be related to the blood nourishing effect of DBD, such as PI3K-AKT pathway, and so on. Only 32 targets participated in these 16 pathways and they were acted on by 29 of the 36 active compounds. Whole pharmacodynamic experiments showed that DBD had significant effects to blood loss rats. Furthermore, DBD could promote the up-regulation of hematopoietic and immune related targets and the down-regulation of inflammatory related targets. Significantly, with the results of effective rate, molecular docking and experimental validation, we predicted astragaloside IV in HQ, senkyunolide A and senkyunolide K in DG might be the major contributing compounds to DBD's blood enriching effect. CONCLUSION In this study, a systematical network pharmacology approach was built. Our results provided a basis for the future study of senkyunolide A and senkyunolide K as the blood enriching compounds in DBD. Furthermore, combined network pharmacology with validation experimental results, the nourishing blood effect of DBD might be manifested by the dual mechanism of enhancing immunity and promoting hematopoiesis.
Collapse
Affiliation(s)
- Xu-Qin Shi
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization and Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Shi-Jun Yue
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization and Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi University of Chinese Medicine, Xi'an 712046, Shaanxi Province, China
| | - Yu-Ping Tang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization and Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi University of Chinese Medicine, Xi'an 712046, Shaanxi Province, China.
| | - Yan-Yan Chen
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization and Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi University of Chinese Medicine, Xi'an 712046, Shaanxi Province, China
| | - Gui-Sheng Zhou
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization and Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Jing Zhang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization and Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Zhen-Hua Zhu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization and Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Pei Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization and Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization and Jiangsu Key Laboratory for High Technology Research of Traditional Chinese Medicine Formulae and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| |
Collapse
|
10
|
Papadopoulou C, Omoyinmi E, Standing A, Pain CE, Booth C, D’Arco F, Gilmour K, Buckland M, Eleftheriou D, Brogan PA. Monogenic mimics of Behçet’s disease in the young. Rheumatology (Oxford) 2019; 58:1227-1238. [DOI: 10.1093/rheumatology/key445] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 12/13/2018] [Indexed: 12/19/2022] Open
Affiliation(s)
- C Papadopoulou
- Infection, Inflammation and Rheumatology Section, UCL Great Ormond Street Institute of Child Health, London, UK
- Great Ormond Street Hospital NHS Foundation Trust, London, UK
| | - E Omoyinmi
- Infection, Inflammation and Rheumatology Section, UCL Great Ormond Street Institute of Child Health, London, UK
- Great Ormond Street Hospital NHS Foundation Trust, London, UK
| | - A Standing
- Infection, Inflammation and Rheumatology Section, UCL Great Ormond Street Institute of Child Health, London, UK
- Great Ormond Street Hospital NHS Foundation Trust, London, UK
| | - C E Pain
- Department of Paediatric Rheumatology, Alder Hey Children's NHS Foundation Trust, Liverpool, UK
| | - C Booth
- Infection, Immunity, Inflammation, Molecular and Cellular Immunology Section, UCL Great Ormond Street Institute of Child Health, London, UK
| | - F D’Arco
- Neuroradiology, Great Ormond Street Hospital NHS Foundation Trust, London, UK
| | - K Gilmour
- Immunology, Great Ormond Street Hospital NHS Foundation Trust, London, UK
| | - M Buckland
- Immunology, Great Ormond Street Hospital NHS Foundation Trust, London, UK
| | - D Eleftheriou
- Infection, Inflammation and Rheumatology Section, UCL Great Ormond Street Institute of Child Health, London, UK
- Great Ormond Street Hospital NHS Foundation Trust, London, UK
- Arthritis Research UK Centre for Adolescent Rheumatology, UCL, UCLH and GOSH, London, UK
| | - P A Brogan
- Infection, Inflammation and Rheumatology Section, UCL Great Ormond Street Institute of Child Health, London, UK
- Great Ormond Street Hospital NHS Foundation Trust, London, UK
| |
Collapse
|
11
|
Peikert K, Danek A, Hermann A. Current state of knowledge in Chorea-Acanthocytosis as core Neuroacanthocytosis syndrome. Eur J Med Genet 2018; 61:699-705. [DOI: 10.1016/j.ejmg.2017.12.007] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 12/01/2017] [Accepted: 12/14/2017] [Indexed: 11/30/2022]
|
12
|
Omoyinmi E, Standing A, Keylock A, Price-Kuehne F, Melo Gomes S, Rowczenio D, Nanthapisal S, Cullup T, Nyanhete R, Ashton E, Murphy C, Clarke M, Ahlfors H, Jenkins L, Gilmour K, Eleftheriou D, Lachmann HJ, Hawkins PN, Klein N, Brogan PA. Clinical impact of a targeted next-generation sequencing gene panel for autoinflammation and vasculitis. PLoS One 2017; 12:e0181874. [PMID: 28750028 PMCID: PMC5531484 DOI: 10.1371/journal.pone.0181874] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 07/07/2017] [Indexed: 12/27/2022] Open
Abstract
Background Monogenic autoinflammatory diseases (AID) are a rapidly expanding group of genetically diverse but phenotypically overlapping systemic inflammatory disorders associated with dysregulated innate immunity. They cause significant morbidity, mortality and economic burden. Here, we aimed to develop and evaluate the clinical impact of a NGS targeted gene panel, the “Vasculitis and Inflammation Panel” (VIP) for AID and vasculitis. Methods The Agilent SureDesign tool was used to design 2 versions of VIP; VIP1 targeting 113 genes, and a later version, VIP2, targeting 166 genes. Captured and indexed libraries (QXT Target Enrichment System) prepared for 72 patients were sequenced as a multiplex of 16 samples on an Illumina MiSeq sequencer in 150bp paired-end mode. The cohort comprised 22 positive control DNA samples from patients with previously validated mutations in a variety of the genes; and 50 prospective samples from patients with suspected AID in whom previous Sanger based genetic screening had been non-diagnostic. Results VIP was sensitive and specific at detecting all the different types of known mutations in 22 positive controls, including gene deletion, small INDELS, and somatic mosaicism with allele fraction as low as 3%. Six/50 patients (12%) with unclassified AID had at least one class 5 (clearly pathogenic) variant; and 11/50 (22%) had at least one likely pathogenic variant (class 4). Overall, testing with VIP resulted in a firm or strongly suspected molecular diagnosis in 16/50 patients (32%). Conclusions The high diagnostic yield and accuracy of this comprehensive targeted gene panel validate the use of broad NGS-based testing for patients with suspected AID.
Collapse
Affiliation(s)
- Ebun Omoyinmi
- UCL Great Ormond Street Institute of Child Health (ICH), London, United Kingdom
- * E-mail:
| | - Ariane Standing
- UCL Great Ormond Street Institute of Child Health (ICH), London, United Kingdom
| | - Annette Keylock
- UCL Great Ormond Street Institute of Child Health (ICH), London, United Kingdom
| | - Fiona Price-Kuehne
- UCL Great Ormond Street Institute of Child Health (ICH), London, United Kingdom
| | - Sonia Melo Gomes
- UCL Great Ormond Street Institute of Child Health (ICH), London, United Kingdom
| | - Dorota Rowczenio
- National Amyloidosis Centre (NAC), UCL, Royal Free Campus, London, United Kingdom
| | - Sira Nanthapisal
- UCL Great Ormond Street Institute of Child Health (ICH), London, United Kingdom
| | - Thomas Cullup
- NE Thames Regional Genetics laboratory, GOSH NHS Foundation Trust, London, United Kingdom
| | - Rodney Nyanhete
- NE Thames Regional Genetics laboratory, GOSH NHS Foundation Trust, London, United Kingdom
| | - Emma Ashton
- NE Thames Regional Genetics laboratory, GOSH NHS Foundation Trust, London, United Kingdom
| | - Claire Murphy
- UCL Great Ormond Street Institute of Child Health (ICH), London, United Kingdom
| | - Megan Clarke
- UCL Great Ormond Street Institute of Child Health (ICH), London, United Kingdom
| | - Helena Ahlfors
- NE Thames Regional Genetics laboratory, GOSH NHS Foundation Trust, London, United Kingdom
| | - Lucy Jenkins
- NE Thames Regional Genetics laboratory, GOSH NHS Foundation Trust, London, United Kingdom
| | - Kimberly Gilmour
- Immunology, Great Ormond Street Hospital NHS Foundation Trust, London, United Kingdom
| | - Despina Eleftheriou
- UCL Great Ormond Street Institute of Child Health (ICH), London, United Kingdom
- Arthritis Research UK Centre for Adolescent Rheumatology, UCL, UCLH and GOSH, London, United Kingdom
| | - Helen J. Lachmann
- National Amyloidosis Centre (NAC), UCL, Royal Free Campus, London, United Kingdom
| | - Philip N. Hawkins
- National Amyloidosis Centre (NAC), UCL, Royal Free Campus, London, United Kingdom
| | - Nigel Klein
- UCL Great Ormond Street Institute of Child Health (ICH), London, United Kingdom
| | - Paul A. Brogan
- UCL Great Ormond Street Institute of Child Health (ICH), London, United Kingdom
| |
Collapse
|
13
|
Lupo F, Tibaldi E, Matte A, Sharma AK, Brunati AM, Alper SL, Zancanaro C, Benati D, Siciliano A, Bertoldi M, Zonta F, Storch A, Walker RH, Danek A, Bader B, Hermann A, De Franceschi L. A new molecular link between defective autophagy and erythroid abnormalities in chorea-acanthocytosis. Blood 2016; 128:2976-2987. [PMID: 27742708 PMCID: PMC5179337 DOI: 10.1182/blood-2016-07-727321] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 09/24/2016] [Indexed: 01/04/2023] Open
Abstract
Chorea-acanthocytosis is one of the hereditary neurodegenerative disorders known as the neuroacanthocytoses. Chorea-acanthocytosis is characterized by circulating acanthocytes deficient in chorein, a protein of unknown function. We report here for the first time that chorea-acanthocytosis red cells are characterized by impaired autophagy, with cytoplasmic accumulation of active Lyn and of autophagy-related proteins Ulk1 and Atg7. In chorea-acanthocytosis erythrocytes, active Lyn is sequestered by HSP90-70 to form high-molecular-weight complexes that stabilize and protect Lyn from its proteasomal degradation, contributing to toxic Lyn accumulation. An interplay between accumulation of active Lyn and autophagy was found in chorea-acanthocytosis based on Lyn coimmunoprecipitation with Ulk1 and Atg7 and on the presence of Ulk1 in Lyn-containing high-molecular-weight complexes. In addition, chorein associated with Atg7 in healthy but not in chorea-acanthocytosis erythrocytes. Electron microscopy detected multivesicular bodies and membrane remnants only in circulating chorea-acanthocytosis red cells. In addition, reticulocyte-enriched chorea-acanthocytosis red cell fractions exhibited delayed clearance of mitochondria and lysosomes, further supporting the impairment of authophagic flux. Because autophagy is also important in erythropoiesis, we studied in vitro CD34+-derived erythroid precursors. In chorea-acanthocytosis, we found (1) dyserythropoiesis; (2) increased active Lyn; (3) accumulation of a marker of autophagic flux and autolysososme degradation; (4) accumlation of Lamp1, a lysosmal membrane protein, and LAMP1-positive aggregates; and (5) reduced clearance of lysosomes and mitochondria. Our results uncover in chorea-acanthocytosis erythroid cells an association between accumulation of active Lyn and impaired autophagy, suggesting a link between chorein and autophagic vesicle trafficking in erythroid maturation.
Collapse
Affiliation(s)
- Francesca Lupo
- Department of Medicine, University of Verona and Azienda ospedaliera Universitaria Integrata di Verona, Verona, Italy
| | - Elena Tibaldi
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Alessandro Matte
- Department of Medicine, University of Verona and Azienda ospedaliera Universitaria Integrata di Verona, Verona, Italy
| | - Alok K Sharma
- Division of Nephrology and Vascular Biology Research Center, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA
| | | | - Seth L Alper
- Division of Nephrology and Vascular Biology Research Center, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA
| | - Carlo Zancanaro
- Department of Neuroscience, Biomedicine and Movement, University of Verona, Verona, Italy
| | - Donatella Benati
- Department of Neuroscience, Biomedicine and Movement, University of Verona, Verona, Italy
| | - Angela Siciliano
- Department of Medicine, University of Verona and Azienda ospedaliera Universitaria Integrata di Verona, Verona, Italy
| | - Mariarita Bertoldi
- Department of Neuroscience, Biomedicine and Movement, University of Verona, Verona, Italy
| | - Francesca Zonta
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Alexander Storch
- Center for Regenerative Therapies, and
- Division of Neurodegenerative Diseases, Department of Neurology, Technische Universität Dresden, Dresden, Germany
- Center for Neurodegenerative Diseases, Dresden, Germany
| | - Ruth H Walker
- Department of Neurology, James J. Peters VA Medical Center, Bronx, NY
- Mount Sinai School of Medicine, New York, NY; and
| | - Adrian Danek
- Department of Neurology, Ludwig-Maximilians-Universität, Munich, Germany
| | - Benedikt Bader
- Department of Neurology, Ludwig-Maximilians-Universität, Munich, Germany
| | - Andreas Hermann
- Division of Neurodegenerative Diseases, Department of Neurology, Technische Universität Dresden, Dresden, Germany
| | - Lucia De Franceschi
- Department of Medicine, University of Verona and Azienda ospedaliera Universitaria Integrata di Verona, Verona, Italy
| |
Collapse
|
14
|
Plani-Lam JHC, Slavova-Azmanova NS, Kucera N, Louw A, Satiaputra J, Singer P, Lam KP, Hibbs ML, Ingley E. Csk-binding protein controls red blood cell development via regulation of Lyn tyrosine kinase activity. Exp Hematol 2016; 46:70-82.e10. [PMID: 27751872 DOI: 10.1016/j.exphem.2016.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 09/30/2016] [Accepted: 10/01/2016] [Indexed: 11/29/2022]
Abstract
Erythropoiesis is controlled principally through erythropoietin (Epo) receptor signaling, which involves Janus kinase 2 (JAK2) and Lyn tyrosine kinase, both of which are important for regulating red blood cell (RBC) development. Negative regulation of Lyn involves C-Src kinase (Csk)-mediated phosphorylation of its C-terminal tyrosine, which is facilitated by the transmembrane adaptor Csk-binding protein (Cbp). Although Cbp has significant functions in controlling Lyn levels and activity in erythroid cells in vitro, its importance to primary erythroid cell development and signaling has remained unclear. To address this, we assessed the consequence of loss of Cbp on the erythroid compartment in vivo and whether Epo-responsive cells isolated from Cbp-knockout mice exhibited altered signaling. Our data show that male Cbp-/- mice display a modest but significant alteration to late erythroid development in bone marrow with evidence of increased erythrocytes in the spleen, whereas female Cbp-/- mice exhibit a moderate elevation in early erythroid progenitors (not seen in male mice) that does not influence the later steps in RBC development. In isolated primary erythroid cells and cell lines generated from Cbp-/- mice, survival signaling through Lyn/Akt/FoxO3 was elevated, resulting in sustained viability during differentiation. The high Akt activity disrupted GAB2/SHP-2 feedback inhibition of Lyn; however, the elevated Lyn activity also increased inhibitory signaling via SHP-1 to restrict the Erk1/2 pathway. Interestingly, whereas loss of Cbp led to mild changes to late RBC development in male mice, this was not apparent in female Cbp-/- mice, possibly due to their elevated estrogen, which is known to facilitate early progenitor self-renewal.
Collapse
Affiliation(s)
- Janice H C Plani-Lam
- Cell Signalling Group, Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research and Centre for Medical Research, The University of Western Australia, Perth, WA, Australia
| | - Neli S Slavova-Azmanova
- Cell Signalling Group, Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research and Centre for Medical Research, The University of Western Australia, Perth, WA, Australia
| | - Nicole Kucera
- Cell Signalling Group, Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research and Centre for Medical Research, The University of Western Australia, Perth, WA, Australia
| | - Alison Louw
- Cell Signalling Group, Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research and Centre for Medical Research, The University of Western Australia, Perth, WA, Australia
| | - Jiulia Satiaputra
- Cell Signalling Group, Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research and Centre for Medical Research, The University of Western Australia, Perth, WA, Australia
| | - Peter Singer
- Laboratory of Immunology, Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore, Singapore
| | - Kong-Peng Lam
- Laboratory of Immunology, Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore, Singapore
| | - Margaret L Hibbs
- Leukocyte Signalling Laboratory, Department of Immunology, Alfred Medical Research and Education Precinct, Monash University, Melbourne, VIC, Australia
| | - Evan Ingley
- Cell Signalling Group, Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research and Centre for Medical Research, The University of Western Australia, Perth, WA, Australia.
| |
Collapse
|
15
|
Byelinska IV, Lynchak OV, Tsyvinska SM, Rybalchenko VK. [MORPHOFUNCTIONAL STATE OF BLOOD CELLS AFTER CHRONIC EXPOSURE OF THE PROTEIN KINASES INHIBITOR MALEIMIDE DERIVATIVE]. ACTA ACUST UNITED AC 2015; 61:71-7. [PMID: 26552308 DOI: 10.15407/fz61.04.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The effect of the protein kinases inhibitor maleimide derivative (MI-1, 1-(4-Cl-benzyl)-3-Cl-4-(CF3-phenylamino)-1H-pyrrole-2,5-dione), inhibitor of VEGF-R1,2,3, FGF-R1, EGF-R(h), PDK1, Src(h), Syk(h), YES, ZAP70 et al. with antineoplastic activity, on blood cells parameters of rats after chronic exposure has been studied. Administration of MI-1 at doses 0.027 and 2.7 mg/kg (suppress colon carcinogenesis) for 20 and 26 weeks does not affect the morphofunctional state of red blood cells in healthy rats. This is confirmed by the lack of differences in the concentration of hemoglobin in blood, red blood cells count, mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration, hematocrit and mean corpuscular volume, and the number of reticulocytes in blood after 20 and 26 weeks of exposure compared with the control group. MI-1 at indicated doses does not influence total leukocytes count and content (eosinophilic and neutrophilic granulocytes, lymphocytes, monocytes) and does not inhibit thrombocytopoiesis (platelet count remains unchanged). No negative effect of MI-1 on hematopoiesis is not limited (by the hemopoietic system) use of this compound as a potential antitumor drug
Collapse
|
16
|
Neurodegeneration in the elderly – When the blood type matters: An overview of the McLeod syndrome with focus on hematological features. Transfus Apher Sci 2015; 52:277-84. [DOI: 10.1016/j.transci.2015.04.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
17
|
|
18
|
Abnormal red cell features associated with hereditary neurodegenerative disorders: the neuroacanthocytosis syndromes. Curr Opin Hematol 2015; 21:201-9. [PMID: 24626044 DOI: 10.1097/moh.0000000000000035] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
PURPOSE OF REVIEW This review discusses the mechanisms involved in the generation of thorny red blood cells (RBCs), known as acanthocytes, in patients with neuroacanthocytosis, a heterogenous group of neurodegenerative hereditary disorders that include chorea-acanthocytosis (ChAc) and McLeod syndrome (MLS). RECENT FINDINGS Although molecular defects associated with neuroacanthocytosis have been identified recently, their pathophysiology and the related RBC abnormalities are largely unknown. Studies in ChAc RBCs have shown an altered association between the cytoskeleton and the integral membrane protein compartment in the absence of major changes in RBC membrane composition. In ChAc RBCs, abnormal Lyn kinase activation in a Syk-independent fashion has been reported recently, resulting in increased band 3 tyrosine phosphorylation and perturbation of the stability of the multiprotein band 3-based complexes bridging the membrane to the spectrin-based membrane skeleton. Similarly, in MLS, the absence of XK-protein, which is associated with the spectrin-actin-4.1 junctional complex, is associated with an abnormal membrane protein phosphorylation state, with destabilization of the membrane skeletal network resulting in generation of acanthocytes. SUMMARY A novel mechanism in generation of acanthocytes involving abnormal Lyn activation, identified in ChAc, expands the acanthocytosis phenomenon toward protein-protein interactions, controlled by phosphorylation-related abnormal signaling.
Collapse
|
19
|
Lyn kinase plays important roles in erythroid expansion, maturation and erythropoietin receptor signalling by regulating inhibitory signalling pathways that control survival. Biochem J 2014; 459:455-66. [DOI: 10.1042/bj20130903] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
In erythroid cells both positive viability signals and feedback inhibitory signalling require the Src family kinase Lyn, influencing cell survival and their ability to differentiate. This illustrates that Lyn is critical for normal erythropoiesis and erythroid cell development.
Collapse
|