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Chacar S, Abdi A, Almansoori K, Alshamsi J, Al Hageh C, Zalloua P, Khraibi AA, Holt SG, Nader M. Role of CaMKII in diabetes induced vascular injury and its interaction with anti-diabetes therapy. Rev Endocr Metab Disord 2024; 25:369-382. [PMID: 38064002 PMCID: PMC10943158 DOI: 10.1007/s11154-023-09855-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/16/2023] [Indexed: 03/16/2024]
Abstract
Diabetes mellitus is a metabolic disorder denoted by chronic hyperglycemia that drives maladaptive structural changes and functional damage to the vasculature. Attenuation of this pathological remodeling of blood vessels remains an unmet target owing to paucity of information on the metabolic signatures of this process. Ca2+/calmodulin-dependent kinase II (CaMKII) is expressed in the vasculature and is implicated in the control of blood vessels homeostasis. Recently, CaMKII has attracted a special attention in view of its chronic upregulated activity in diabetic tissues, yet its role in the diabetic vasculature remains under investigation.This review highlights the physiological and pathological actions of CaMKII in the diabetic vasculature, with focus on the control of the dialogue between endothelial (EC) and vascular smooth muscle cells (VSMC). Activation of CaMKII enhances EC and VSMC proliferation and migration, and increases the production of extracellular matrix which leads to maladaptive remodeling of vessels. This is manifested by activation of genes/proteins implicated in the control of the cell cycle, cytoskeleton organization, proliferation, migration, and inflammation. Endothelial dysfunction is paralleled by impaired nitric oxide signaling, which is also influenced by CaMKII signaling (activation/oxidation). The efficiency of CaMKII inhibitors is currently being tested in animal models, with a focus on the genetic pathways involved in the regulation of CaMKII expression (microRNAs and single nucleotide polymorphisms). Interestingly, studies highlight an interaction between the anti-diabetic drugs and CaMKII expression/activity which requires further investigation. Together, the studies reviewed herein may guide pharmacological approaches to improve health-related outcomes in patients with diabetes.
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Affiliation(s)
- Stephanie Chacar
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates.
- Center for Biotechnology, Khalifa University of Science and Technology, 127788, Abu Dhabi, United Arab Emirates.
| | - Abdulhamid Abdi
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Khalifa Almansoori
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Jawaher Alshamsi
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Cynthia Al Hageh
- Department of Molecular Biology and Genetics, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Pierre Zalloua
- Department of Molecular Biology and Genetics, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Center for Biotechnology, Khalifa University of Science and Technology, 127788, Abu Dhabi, United Arab Emirates
| | - Ali A Khraibi
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Center for Biotechnology, Khalifa University of Science and Technology, 127788, Abu Dhabi, United Arab Emirates
| | - Stephen G Holt
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- SEHA Kidney Care, SEHA, Abu Dhabi, UAE
| | - Moni Nader
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates.
- Center for Biotechnology, Khalifa University of Science and Technology, 127788, Abu Dhabi, United Arab Emirates.
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Zhu Y, Wang Z, Li Y, Peng H, Liu J, Zhang J, Xiao X. The Role of CREBBP/EP300 and Its Therapeutic Implications in Hematological Malignancies. Cancers (Basel) 2023; 15:cancers15041219. [PMID: 36831561 PMCID: PMC9953837 DOI: 10.3390/cancers15041219] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 02/17/2023] Open
Abstract
Disordered histone acetylation has emerged as a key mechanism in promoting hematological malignancies. CREB-binding protein (CREBBP) and E1A-binding protein P300 (EP300) are two key acetyltransferases and transcriptional cofactors that regulate gene expression by regulating the acetylation levels of histone proteins and non-histone proteins. CREBBP/EP300 dysregulation and CREBBP/EP300-containing complexes are critical for the initiation, progression, and chemoresistance of hematological malignancies. CREBBP/EP300 also participate in tumor immune responses by regulating the differentiation and function of multiple immune cells. Currently, CREBBP/EP300 are attractive targets for drug development and are increasingly used as favorable tools in preclinical studies of hematological malignancies. In this review, we summarize the role of CREBBP/EP300 in normal hematopoiesis and highlight the pathogenic mechanisms of CREBBP/EP300 in hematological malignancies. Moreover, the research basis and potential future therapeutic implications of related inhibitors were also discussed from several aspects. This review represents an in-depth insight into the physiological and pathological significance of CREBBP/EP300 in hematology.
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Affiliation(s)
- Yu Zhu
- Department of Hematology, The Second Xiangya Hospital, Molecular Biology Research Center, School of Life Sciences, Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Zi Wang
- Department of Hematology, The Second Xiangya Hospital, Molecular Biology Research Center, School of Life Sciences, Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Yanan Li
- Department of Hematology, The Second Xiangya Hospital, Molecular Biology Research Center, School of Life Sciences, Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Hongling Peng
- Department of Hematology, The Second Xiangya Hospital, Molecular Biology Research Center, School of Life Sciences, Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Jing Liu
- Department of Hematology, The Second Xiangya Hospital, Molecular Biology Research Center, School of Life Sciences, Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Ji Zhang
- The Affiliated Nanhua Hospital, Department of Clinical Laboratory, Hengyang Medical School, University of South China, Hengyang 421001, China
- Correspondence: (J.Z.); (X.X.); Tel.: +86-734-8279050 (J.Z.); +86-731-84805449 (X.X.)
| | - Xiaojuan Xiao
- Department of Hematology, The Second Xiangya Hospital, Molecular Biology Research Center, School of Life Sciences, Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
- Correspondence: (J.Z.); (X.X.); Tel.: +86-734-8279050 (J.Z.); +86-731-84805449 (X.X.)
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Beghi S, Furmanik M, Jaminon A, Veltrop R, Rapp N, Wichapong K, Bidar E, Buschini A, Schurgers LJ. Calcium Signalling in Heart and Vessels: Role of Calmodulin and Downstream Calmodulin-Dependent Protein Kinases. Int J Mol Sci 2022; 23:ijms232416139. [PMID: 36555778 PMCID: PMC9783221 DOI: 10.3390/ijms232416139] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/11/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Cardiovascular disease is the major cause of death worldwide. The success of medication and other preventive measures introduced in the last century have not yet halted the epidemic of cardiovascular disease. Although the molecular mechanisms of the pathophysiology of the heart and vessels have been extensively studied, the burden of ischemic cardiovascular conditions has risen to become a top cause of morbidity and mortality. Calcium has important functions in the cardiovascular system. Calcium is involved in the mechanism of excitation-contraction coupling that regulates numerous events, ranging from the production of action potentials to the contraction of cardiomyocytes and vascular smooth muscle cells. Both in the heart and vessels, the rise of intracellular calcium is sensed by calmodulin, a protein that regulates and activates downstream kinases involved in regulating calcium signalling. Among them is the calcium calmodulin kinase family, which is involved in the regulation of cardiac functions. In this review, we present the current literature regarding the role of calcium/calmodulin pathways in the heart and vessels with the aim to summarize our mechanistic understanding of this process and to open novel avenues for research.
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Affiliation(s)
- Sofia Beghi
- Cardiovascular Research Institute Maastricht (CARIM), Department of Biochemistry, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area Delle Scienze 11A, 43124 Parma, Italy
- Correspondence: ; Tel.: +39-3408473527
| | - Malgorzata Furmanik
- Cardiovascular Research Institute Maastricht (CARIM), Department of Biochemistry, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Armand Jaminon
- Cardiovascular Research Institute Maastricht (CARIM), Department of Biochemistry, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Rogier Veltrop
- Cardiovascular Research Institute Maastricht (CARIM), Department of Biochemistry, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Nikolas Rapp
- Cardiovascular Research Institute Maastricht (CARIM), Department of Biochemistry, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Kanin Wichapong
- Cardiovascular Research Institute Maastricht (CARIM), Department of Biochemistry, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Elham Bidar
- Department of Cardiothoracic Surgery, Heart and Vascular Centre, Maastricht University Medical Centre+, 6229 HX Maastricht, The Netherlands
| | - Annamaria Buschini
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area Delle Scienze 11A, 43124 Parma, Italy
| | - Leon J. Schurgers
- Cardiovascular Research Institute Maastricht (CARIM), Department of Biochemistry, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
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4
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Najih M, Nguyen HT, Martin LJ. Involvement of calmodulin-dependent protein kinase I in the regulation of the expression of connexin 43 in MA-10 tumor Leydig cells. Mol Cell Biochem 2022; 478:791-805. [PMID: 36094721 DOI: 10.1007/s11010-022-04553-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 08/30/2022] [Indexed: 11/30/2022]
Abstract
Connexin 43 (Cx43, also known as Gja1) is the most abundant testicular gap junction protein. It has a crucial role in the support of spermatogenesis by Sertoli cells in the seminiferous tubules as well as in androgen synthesis by Leydig cells. The multifunctional family of Ca2+/calmodulin-dependent protein kinases (CaMK) is composed of CaMK I, II, and IV and each can serve as a mediator of nuclear Ca2+ signals. These kinases can control gene expression by phosphorylation of key regulatory sites on transcription factors. Among these, AP-1 members cFos and cJun are interesting candidates that seem to cooperate with CaMKs to regulate Cx43 expression in Leydig cells. In this study, the Cx43 promoter region important for CaMK-dependent activation is characterized using co-transfection of plasmid reporter-constructs with different plasmids coding for CaMKs and/or AP-1 members in MA-10 Leydig cells. Here we report that the activation of Cx43 expression by cFos and cJun is increased by CaMKI. Furthermore, results from chromatin immunoprecipitation suggest that the recruitment of AP-1 family members to the proximal region of the Cx43 promoter may involve another uncharacterized AP-1 DNA regulatory element and/or protein-protein interactions with other partners. Thus, our data provide new insights into the molecular regulatory mechanisms that control mouse Cx43 transcription in testicular Leydig cells.
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Affiliation(s)
- Mustapha Najih
- Biology Department, Université de Moncton, 18, avenue Antonine Maillet, Moncton, NB, E1A 3E9, Canada
| | - Ha Tuyen Nguyen
- Biology Department, Université de Moncton, 18, avenue Antonine Maillet, Moncton, NB, E1A 3E9, Canada
| | - Luc J Martin
- Biology Department, Université de Moncton, 18, avenue Antonine Maillet, Moncton, NB, E1A 3E9, Canada.
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5
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Bonora M, Kahsay A, Pinton P. Mitochondrial calcium homeostasis in hematopoietic stem cell: Molecular regulation of quiescence, function, and differentiation. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2022; 362:111-140. [PMID: 34253293 DOI: 10.1016/bs.ircmb.2021.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Hematopoiesis is based on the existence of hematopoietic stem cells (HSC) with the capacity to self-proliferate and self-renew or to differentiate into specialized cells. The hematopoietic niche is the essential microenvironment where stem cells reside and integrate various stimuli to determine their fate. Recent studies have identified niche containing high level of calcium (Ca2+) suggesting that HSCs are sensitive to Ca2+. This is a highly versatile and ubiquitous second messenger that regulates a wide variety of cellular functions. Advanced methods for measuring its concentrations, genetic experiments, cell fate tracing data, single-cell imaging, and transcriptomics studies provide information into its specific roles to integrate signaling into an array of mechanisms that determine HSC identity, lineage potential, maintenance, and self-renewal. Accumulating and contrasting evidence, are revealing Ca2+ as a previously unacknowledged feature of HSC, involved in functional maintenance, by regulating multiple actors including transcription and epigenetic factors, Ca2+-dependent kinases and mitochondrial physiology. Mitochondria are significant participants in HSC functions and their responsiveness to cellular demands is controlled to a significant extent via Ca2+ signals. Recent reports indicate that mitochondrial Ca2+ uptake also controls HSC fate. These observations reveal a physiological feature of hematopoietic stem cells that can be harnessed to improve HSC-related disease. In this review, we discuss the current knowledge Ca2+ in hematopoietic stem cell focusing on its potential involvement in proliferation, self-renewal and maintenance of HSC and discuss future research directions.
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Affiliation(s)
- Massimo Bonora
- Department of Medical Sciences, Section of Experimental Medicine, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy.
| | - Asrat Kahsay
- Department of Medical Sciences, Section of Experimental Medicine, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Paolo Pinton
- Department of Medical Sciences, Section of Experimental Medicine, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy.
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6
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Lewis KJ. Osteocyte calcium signaling - A potential translator of mechanical load to mechanobiology. Bone 2021; 153:116136. [PMID: 34339908 DOI: 10.1016/j.bone.2021.116136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 06/25/2021] [Accepted: 07/27/2021] [Indexed: 10/20/2022]
Abstract
Osteocytes are embedded dendritic bone cells; by virtue of their position in bone tissue, ability to coordinate bone building osteoblasts and resorbing osteoclasts, and sensitivity to tissue level mechanical loading, they serve as the resident bone mechanosensor. The mechanisms osteocytes use to change mechanical loading into biological signals that drive tissue level changes has been well studied over the last 30 years, however the ways loading parameters are encoded at the cellular level are still not fully understood. Calcium signaling is a first messenger signal exhibited by osteocytes in response to mechanical forces. A body of work interrogating the mechanisms of osteocyte calcium signaling exists and is presently expanding, presenting the opportunity to better understand the relationship between calcium signaling characteristics and tuned osteocyte responses to tissue level strain features (e.g. magnitude, duration, frequency). This review covers the history of osteocyte load induced calcium signaling and highlights potential cellular mechanisms used by osteocytes to turn details about loading parameters into biological events.
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Affiliation(s)
- Karl J Lewis
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, United States of America.
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7
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Zheng Z, Wang X, Wang Y, King JAC, Xie P, Wu S. CaMK4 is a downstream effector of the α 1G T-type calcium channel to determine the angiogenic potential of pulmonary microvascular endothelial cells. Am J Physiol Cell Physiol 2021; 321:C964-C977. [PMID: 34586897 DOI: 10.1152/ajpcell.00216.2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/27/2021] [Indexed: 01/25/2023]
Abstract
Pulmonary microvascular endothelial cells (PMVECs) uniquely express an α1G-subtype of voltage-gated T-type Ca2+ channel. We have previously revealed that the α1G channel functions as a background Ca2+ entry pathway that is critical for the cell proliferation, migration, and angiogenic potential of PMVECs, a novel function attributed to the coupling between α1G-mediated Ca2+ entry and constitutive Akt phosphorylation and activation. Despite this significance, mechanism(s) that link the α1G-mediated Ca2+ entry to Akt phosphorylation remain incompletely understood. In this study, we demonstrate that Ca2+/calmodulin-dependent protein kinase (CaMK) 4 serves as a downstream effector of the α1G-mediated Ca2+ entry to promote the angiogenic potential of PMVECs. Notably, CaMK2 and CaMK4 are both expressed in PMVECs. Pharmacological blockade or genetic knockdown of the α1G channel led to a significant reduction in the phosphorylation level of CaMK4 but not the phosphorylation level of CaMK2. Pharmacological inhibition as well as genetic knockdown of CaMK4 significantly decreased cell proliferation, migration, and network formation capacity in PMVECs. However, CaMK4 inhibition or knockdown did not alter Akt phosphorylation status in PMVECs, indicating that α1G/Ca2+/CaMK4 is independent of the α1G/Ca2+/Akt pathway in sustaining the cells' angiogenic potential. Altogether, these findings suggest a novel α1G-CaMK4 signaling complex that regulates the Ca2+-dominated angiogenic potential in PMVECs.
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Affiliation(s)
- Zhen Zheng
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Xuelin Wang
- Department of Respiratory and Critical Care Medicine, Henan Provincial People's Hospital, Zhengzhou, China
| | - Yuxia Wang
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Judy A C King
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center - Shreveport, Shreveport, Louisiana
| | - Peilin Xie
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Songwei Wu
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, Alabama
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Altobelli GG, Van Noorden S, Cimini D, Illario M, Sorriento D, Cimini V. Calcium/calmodulin-dependent kinases can regulate the TSH expression in the rat pituitary. J Endocrinol Invest 2021; 44:2387-2394. [PMID: 33743173 DOI: 10.1007/s40618-021-01545-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 02/26/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE The endocrine secretion of TSH is a finely orchestrated process controlled by the thyrotropin-releasing hormone (TRH). Its homeostasis and signaling rely on many calcium-binding proteins belonging to the "EF-hand" protein family. The Ca2+/calmodulin (CaM) complex is associated with Ca2+/CaM-dependent kinases (Ca2+/CaMK). We have investigated Ca2+/CaMK expression and regulation in the rat pituitary. METHODS The expression of CaMKII and CaMKIV in rat anterior pituitary cells was shown by immunohistochemistry. Cultured anterior pituitary cells were stimulated by TRH in the presence and absence of KN93, the pharmacological inhibitor of CaMKII and CaMKIV. Western blotting was then used to measure the expression of these kinases and of the cAMP response element-binding protein (CREB). TSH production was measured by RIA after time-dependent stimulation with TRH. Cells were infected with a lentiviral construct coding for CaMKIV followed by measurement of CREB phosphorylation and TSH. RESULTS Our study shows that two CaM kinases, CaMKII and CaMKII, are expressed in rat pituitary cells and their phosphorylation in response to TRH occurs at different time points, with CaMKIV being activated earlier than CaMKII. TRH induces CREB phosphorylation through the activity of both CaMKII and CaMKIV. The activation of CREB increases TSH gene expression. CaMKIV induces CREB phosphorylation while its dominant negative and KN93 exert the opposite effects. CONCLUSION Our data indicate that the expression of Ca2+/CaMK in rat anterior pituitary are correlated to the role of CREB in the genetic regulation of TSH, and that TRH stimulation activates CaMKIV, which in turn phosphorylates CREB. This phosphorylation is linked to the production of thyrotropin.
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Affiliation(s)
- G G Altobelli
- Department of Advanced Biomedical Sciences, Medical School, "Federico II" University of Naples, Naples, Italy.
| | - S Van Noorden
- Department of Histopathology, Imperial College London, Hammersmith Hospital, London, UK
| | - D Cimini
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, Caserta, Italy
| | - M Illario
- Department of Public Health, Medical School, "Federico II" University of Naples, Naples, Italy
| | - D Sorriento
- Department of Advanced Biomedical Sciences, Medical School, "Federico II" University of Naples, Naples, Italy
| | - V Cimini
- Department of Advanced Biomedical Sciences, Medical School, "Federico II" University of Naples, Naples, Italy.
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9
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Cui C, Wang C, Cao M, Kang X. Ca 2+/calmodulin-dependent Protein Kinases in Leukemia Development. JOURNAL OF CELLULAR IMMUNOLOGY 2021; 3:144-150. [PMID: 34263253 PMCID: PMC8276974 DOI: 10.33696/immunology.3.091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Ca2+/calmodulin (CaM) signaling is important for a wide range of cellular functions. It is not surprised the role of this signaling has been recognized in tumor progressions, such as proliferation, invasion, and migration. However, its role in leukemia has not been well appreciated. The multifunctional Ca2+/CaM-dependent protein kinases (CaMKs) are critical intermediates of this signaling and play key roles in cancer development. The most investigated CaMKs in leukemia, especially myeloid leukemia, are CaMKI, CaMKII, and CaMKIV. The function and mechanism of these kinases in leukemia development are summarized in this study.
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Affiliation(s)
- Changhao Cui
- School of Life Science and Medicine, Dalian University of Technology, Liaoning 124221, China
| | - Chen Wang
- Center for Precision Medicine, Department of Medicine, University of Missouri, 1 Hospital Drive, Columbia, Missouri 65212, USA
| | - Min Cao
- Center for Precision Medicine, Department of Medicine, University of Missouri, 1 Hospital Drive, Columbia, Missouri 65212, USA
| | - Xunlei Kang
- Center for Precision Medicine, Department of Medicine, University of Missouri, 1 Hospital Drive, Columbia, Missouri 65212, USA
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10
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Li M, Liu S, Huang W, Zhang J. Physiological and pathological functions of βB2-crystallins in multiple organs: a systematic review. Aging (Albany NY) 2021; 13:15674-15687. [PMID: 34118792 PMCID: PMC8221336 DOI: 10.18632/aging.203147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 05/18/2021] [Indexed: 12/16/2022]
Abstract
Crystallins, the major constituent proteins of mammalian lenses, are significant not only for the maintenance of eye lens stability, transparency, and refraction, but also fulfill various physiopathological functions in extraocular tissues. βB2-crystallin, for example, is a multifunctional protein expressed in the human retina, brain, testis, ovary, and multiple tumors. Mutations in the βB2 crystallin gene or denaturation of βB2-crystallin protein are associated with cataracts, ocular pathologies, and psychiatric disorders. A prominent role for βB2-crystallins in axonal growth and regeneration, as well as in dendritic outgrowth, has been demonstrated after optic nerve injury. Studies in βB2-crystallin-null mice revealed morphological and functional abnormalities in testis and ovaries, indicating βB2-crystallin contributes to male and female fertility in mice. Interestingly, although pathogenic significance remains obscure, several studies identified a clear correlation between βB2 crystallin expression and the prognosis of patients with breast cancer, colorectal cancer, prostate cancer, renal cell carcinoma, and glioblastoma in the African American population. This review summarizes the physiological and pathological functions of βB2-crystallin in the eye and other organs and tissues and discusses findings related to the expression and potential role of βB2-crystallin in tumors.
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Affiliation(s)
- Meihui Li
- Department of Obstetrics and Gynecology, Changhai Hospital, Naval Military Medical University, Yangpu, Shanghai 200433, China
| | - Shengnan Liu
- Department of Obstetrics and Gynecology, Changhai Hospital, Naval Military Medical University, Yangpu, Shanghai 200433, China
| | - Wei Huang
- Department of Obstetrics and Gynecology, Changhai Hospital, Naval Military Medical University, Yangpu, Shanghai 200433, China
| | - Junjie Zhang
- Department of Obstetrics and Gynecology, Changhai Hospital, Naval Military Medical University, Yangpu, Shanghai 200433, China
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11
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The Calcium/Calmodulin-Dependent Kinases II and IV as Therapeutic Targets in Neurodegenerative and Neuropsychiatric Disorders. Int J Mol Sci 2021; 22:ijms22094307. [PMID: 33919163 PMCID: PMC8122486 DOI: 10.3390/ijms22094307] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/13/2021] [Accepted: 04/17/2021] [Indexed: 12/14/2022] Open
Abstract
CaMKII and CaMKIV are calcium/calmodulin-dependent kinases playing a rudimentary role in many regulatory processes in the organism. These kinases attract increasing interest due to their involvement primarily in memory and plasticity and various cellular functions. Although CaMKII and CaMKIV are mostly recognized as the important cogs in a memory machine, little is known about their effect on mood and role in neuropsychiatric diseases etiology. Here, we aimed to review the structure and functions of CaMKII and CaMKIV, as well as how these kinases modulate the animals’ behavior to promote antidepressant-like, anxiolytic-like, and procognitive effects. The review will help in the understanding of the roles of the above kinases in the selected neurodegenerative and neuropsychiatric disorders, and this knowledge can be used in future drug design.
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12
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Stem cell plasticity and regenerative potential regulation through Ca 2+-mediated mitochondrial nuclear crosstalk. Mitochondrion 2020; 56:1-14. [PMID: 33059088 DOI: 10.1016/j.mito.2020.10.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 09/03/2020] [Accepted: 10/05/2020] [Indexed: 02/07/2023]
Abstract
The multi-lineage differentiation potential is one of the prominent mechanisms through which stem cells can repair damaged tissues. The regenerative potential of stem cells is the manifestation of several changes at the structural and molecular levels in stem cells that are regulated through intricate mitochondrial-nuclear interactions maintained by Ca2+ ion signaling. Despite the exhilarating evidences strengthening the versatile and indispensible role of Ca2+ in regulating mitochondrial-nuclear interactions, the extensive details of signaling mechanisms remains largely unexplored. In this review we have discussed the effect of Ca2+ ion mediated mitochondrial-nuclear interactions participating in stem plasticity and its regenerative potential.
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13
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Dunn DM, Munger J. Interplay Between Calcium and AMPK Signaling in Human Cytomegalovirus Infection. Front Cell Infect Microbiol 2020; 10:384. [PMID: 32850483 PMCID: PMC7403205 DOI: 10.3389/fcimb.2020.00384] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 06/23/2020] [Indexed: 12/13/2022] Open
Abstract
Calcium signaling and the AMP-activated protein kinase (AMPK) signaling networks broadly regulate numerous aspects of cell biology. Human Cytomegalovirus (HCMV) infection has been found to actively manipulate the calcium-AMPK signaling axis to support infection. Many HCMV genes have been linked to modulating calcium signaling, and HCMV infection has been found to be reliant on calcium signaling and AMPK activation. Here, we focus on the cell biology of calcium and AMPK signaling and what is currently known about how HCMV modulates these pathways to support HCMV infection and potentially contribute to oncomodulation.
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Affiliation(s)
- Diana M Dunn
- Department of Biochemistry and Biophysics, School of Medicine and Dentistry, University of Rochester, Rochester, NY, United States
| | - Joshua Munger
- Department of Biochemistry and Biophysics, School of Medicine and Dentistry, University of Rochester, Rochester, NY, United States
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14
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Grahn THM, Niroula A, Végvári Á, Oburoglu L, Pertesi M, Warsi S, Safi F, Miharada N, Garcia SC, Siva K, Liu Y, Rörby E, Nilsson B, Zubarev RA, Karlsson S. S100A6 is a critical regulator of hematopoietic stem cells. Leukemia 2020; 34:3323-3337. [PMID: 32555370 PMCID: PMC7685984 DOI: 10.1038/s41375-020-0901-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 05/26/2020] [Accepted: 05/29/2020] [Indexed: 01/22/2023]
Abstract
The fate options of hematopoietic stem cells (HSCs) include self-renewal, differentiation, migration, and apoptosis. HSCs self-renewal divisions in stem cells are required for rapid regeneration during tissue damage and stress, but how precisely intracellular calcium signals are regulated to maintain fate options in normal hematopoiesis is unclear. S100A6 knockout (KO) HSCs have reduced total cell numbers in the HSC compartment, decreased myeloid output, and increased apoptotic HSC numbers in steady state. S100A6KO HSCs had impaired self-renewal and regenerative capacity, not responding to 5-Fluorouracil. Our transcriptomic and proteomic profiling suggested that S100A6 is a critical HSC regulator. Intriguingly, S100A6KO HSCs showed decreased levels of phosphorylated Akt (p-Akt) and Hsp90, with an impairment of mitochondrial respiratory capacity and a reduction of mitochondrial calcium levels. We showed that S100A6 regulates intracellular and mitochondria calcium buffering of HSC upon cytokine stimulation and have demonstrated that Akt activator SC79 reverts the levels of intracellular and mitochondrial calcium in HSC. Hematopoietic colony-forming activity and the Hsp90 activity of S100A6KO are restored through activation of the Akt pathway. We show that p-Akt is the prime downstream mechanism of S100A6 in the regulation of HSC self-renewal by specifically governing mitochondrial metabolic function and Hsp90 protein quality.
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Affiliation(s)
- Tan Hooi Min Grahn
- Division of Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University Hospital, 22184, Lund, Sweden.
| | - Abhishek Niroula
- Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, BMC B13, SE-221 84, Lund, Sweden
| | - Ákos Végvári
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Solnavägen 9, SE-171 65, Solna, Sweden
| | - Leal Oburoglu
- Division of Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University Hospital, 22184, Lund, Sweden
| | - Maroulio Pertesi
- Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, BMC B13, SE-221 84, Lund, Sweden
| | - Sarah Warsi
- Division of Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University Hospital, 22184, Lund, Sweden
| | - Fatemeh Safi
- Division of Molecular Hematology, Lund Stem Cell Center, Lund University Hospital, 22184, Lund, Sweden
| | - Natsumi Miharada
- Division of Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University Hospital, 22184, Lund, Sweden
| | - Sandra C Garcia
- Department of Molecular, Cell and Developmental Biology, Eli and Edythe Broad Stem Cell Research Center, University of California, Los Angeles, CA, USA
| | - Kavitha Siva
- Division of Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University Hospital, 22184, Lund, Sweden
| | - Yang Liu
- Division of Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University Hospital, 22184, Lund, Sweden
| | - Emma Rörby
- Experimental Hematology Unit, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Björn Nilsson
- Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, BMC B13, SE-221 84, Lund, Sweden
| | - Roman A Zubarev
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Solnavägen 9, SE-171 65, Solna, Sweden
| | - Stefan Karlsson
- Division of Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University Hospital, 22184, Lund, Sweden.
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15
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Mateo-Otero Y, Sánchez JM, Recuero S, Bagés-Arnal S, McDonald M, Kenny DA, Yeste M, Lonergan P, Fernandez-Fuertes B. Effect of Exposure to Seminal Plasma Through Natural Mating in Cattle on Conceptus Length and Gene Expression. Front Cell Dev Biol 2020; 8:341. [PMID: 32478076 PMCID: PMC7235327 DOI: 10.3389/fcell.2020.00341] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 04/20/2020] [Indexed: 12/20/2022] Open
Abstract
A growing body of evidence suggests that paternal factors have an impact on offspring development. These studies have been mainly carried out in mice, where seminal plasma (SP) has been shown to regulate endometrial gene expression and impact embryo development and subsequent offspring health. In cattle, infusion of SP into the uterus also induces changes in endometrial gene expression, however, evidence for an effect of SP on early embryo development is lacking. In addition, during natural mating, the bull ejaculates in the vagina; hence, it is not clear whether any SP reaches the uterus in this species. Thus, the aim of the present study was to determine whether SP exposure leads to improved early embryo survival and developmental rates in cattle. To this end, Day 7 in vitro produced blastocysts were transferred to heifers (12-15 per heifer) previously mated to vasectomized bulls (n = 13 heifers) or left unmated (n = 12 heifers; control). At Day 14, heifers were slaughtered, and conceptuses were recovered to assess size, morphology and expression of candidate genes involved in different developmental pathways. Additionally, CL volume at Day 7, and weight and volume of CL at Day 14 were recorded. No effect of SP on CL volume and weight not on conceptus recovery rate was observed. However, filamentous conceptuses recovered from SP-exposed heifers were longer in comparison to the control group and differed in expression of CALM1, CITED1, DLD, HNRNPDL, PTGS2, and TGFB3. In conclusion, data indicate that female exposure to SP during natural mating can affect conceptus development in cattle. This is probably achieved through modulation of the female reproductive environment at the time of mating.
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Affiliation(s)
- Yentel Mateo-Otero
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, Girona, Spain
| | - José María Sánchez
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Sandra Recuero
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, Girona, Spain
| | - Sandra Bagés-Arnal
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Michael McDonald
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - David A. Kenny
- Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Teagasc Grange, Dunsany, Ireland
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, Girona, Spain
| | - Pat Lonergan
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Beatriz Fernandez-Fuertes
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, Girona, Spain
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16
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O’Byrne SN, Scott JW, Pilotte JR, Santiago ADS, Langendorf CG, Oakhill JS, Eduful BJ, Couñago RM, Wells CI, Zuercher WJ, Willson TM, Drewry DH. In Depth Analysis of Kinase Cross Screening Data to Identify CAMKK2 Inhibitory Scaffolds. Molecules 2020; 25:E325. [PMID: 31941153 PMCID: PMC7024175 DOI: 10.3390/molecules25020325] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/07/2020] [Accepted: 01/08/2020] [Indexed: 12/25/2022] Open
Abstract
The calcium/calmodulin-dependent protein kinase kinase 2 (CAMKK2) activates CAMK1, CAMK4, AMPK, and AKT, leading to numerous physiological responses. The deregulation of CAMKK2 is linked to several diseases, suggesting the utility of CAMKK2 inhibitors for oncological, metabolic and inflammatory indications. In this work, we demonstrate that STO-609, frequently described as a selective inhibitor for CAMKK2, potently inhibits a significant number of other kinases. Through an analysis of literature and public databases, we have identified other potent CAMKK2 inhibitors and verified their activities in differential scanning fluorimetry and enzyme inhibition assays. These inhibitors are potential starting points for the development of selective CAMKK2 inhibitors and will lead to tools that delineate the roles of this kinase in disease biology.
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Affiliation(s)
- Sean N. O’Byrne
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (S.N.O.); (J.R.P.); (B.J.E.); (C.I.W.); (W.J.Z.); (T.M.W.)
| | - John W. Scott
- St Vincent’s Institute and Department of Medicine, The University of Melbourne, 41 Victoria Parade, Fitzroy 3065, Australia; (J.W.S.); (C.G.L.); (J.S.O.)
- Mary MacKillop Institute for Health Research, Australian Catholic University, 215 Spring Street, Melbourne 3000, Australia
- The Florey Institute of Neuroscience and Mental Health, 30 Royal Parade, Parkville 3052, Australia
| | - Joseph R. Pilotte
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (S.N.O.); (J.R.P.); (B.J.E.); (C.I.W.); (W.J.Z.); (T.M.W.)
| | - André da S. Santiago
- Centro de Química Medicinal (CQMED), Centro de Biologia Molecular e Engenharia Genética (CBMEG), Universidade Estadual de Campinas (UNICAMP), Campinas SP 13083-875, Brazil; (A.d.S.S.); (R.M.C.)
- Structural Genomics Consortium, Departamento de Genética e Evolução, Instituto de Biologia, UNICAMP, Campinas SP 13083-886, Brazil
| | - Christopher G. Langendorf
- St Vincent’s Institute and Department of Medicine, The University of Melbourne, 41 Victoria Parade, Fitzroy 3065, Australia; (J.W.S.); (C.G.L.); (J.S.O.)
| | - Jonathan S. Oakhill
- St Vincent’s Institute and Department of Medicine, The University of Melbourne, 41 Victoria Parade, Fitzroy 3065, Australia; (J.W.S.); (C.G.L.); (J.S.O.)
- Mary MacKillop Institute for Health Research, Australian Catholic University, 215 Spring Street, Melbourne 3000, Australia
| | - Benjamin J. Eduful
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (S.N.O.); (J.R.P.); (B.J.E.); (C.I.W.); (W.J.Z.); (T.M.W.)
| | - Rafael M. Couñago
- Centro de Química Medicinal (CQMED), Centro de Biologia Molecular e Engenharia Genética (CBMEG), Universidade Estadual de Campinas (UNICAMP), Campinas SP 13083-875, Brazil; (A.d.S.S.); (R.M.C.)
- Structural Genomics Consortium, Departamento de Genética e Evolução, Instituto de Biologia, UNICAMP, Campinas SP 13083-886, Brazil
| | - Carrow I. Wells
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (S.N.O.); (J.R.P.); (B.J.E.); (C.I.W.); (W.J.Z.); (T.M.W.)
| | - William J. Zuercher
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (S.N.O.); (J.R.P.); (B.J.E.); (C.I.W.); (W.J.Z.); (T.M.W.)
| | - Timothy M. Willson
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (S.N.O.); (J.R.P.); (B.J.E.); (C.I.W.); (W.J.Z.); (T.M.W.)
| | - David H. Drewry
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (S.N.O.); (J.R.P.); (B.J.E.); (C.I.W.); (W.J.Z.); (T.M.W.)
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17
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Regulation of Multifunctional Calcium/Calmodulin Stimulated Protein Kinases by Molecular Targeting. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1131:649-679. [PMID: 31646529 DOI: 10.1007/978-3-030-12457-1_26] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Multifunctional calcium/calmodulin-stimulated protein kinases control a broad range of cellular functions in a multitude of cell types. This family of kinases contain several structural similarities and all are regulated by phosphorylation, which either activates, inhibits or modulates their kinase activity. As these protein kinases are widely or ubiquitously expressed, and yet regulate a broad range of different cellular functions, additional levels of regulation exist that control these cell-specific functions. Of particular importance for this specificity of function for multifunctional kinases is the expression of specific binding proteins that mediate molecular targeting. These molecular targeting mechanisms allow pools of kinase in different cells, or parts of a cell, to respond differently to activation and produce different functional outcomes.
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18
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Extracellular annexin-A1 promotes myeloid/granulocytic differentiation of hematopoietic stem/progenitor cells via the Ca 2+/MAPK signalling transduction pathway. Cell Death Discov 2019; 5:135. [PMID: 31552142 PMCID: PMC6755131 DOI: 10.1038/s41420-019-0215-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/19/2019] [Accepted: 08/24/2019] [Indexed: 12/14/2022] Open
Abstract
Annexin A1 (AnxA1) modulates neutrophil life span and bone marrow/blood cell trafficking thorough activation of formyl-peptide receptors (FPRs). Here, we investigated the effect of exogenous AnxA1 on haematopoiesis in the mouse. Treatment of C57BL/6 mice with recombinant AnxA1 (rAnxA1) reduced the granulocyte–macrophage progenitor (GMP) population in the bone marrow, enhanced the number of mature granulocytes Gr-1+Mac-1+ in the bone marrow as well as peripheral granulocytic neutrophils and increased expression of mitotic cyclin B1 on hematopoietic stem cells (HSCs)/progenitor cells (Lin−Sca-1+c-Kit+: LSK). These effects were abolished by simultaneous treatment with Boc-2, an FPR pan-antagonist. In in vitro studies, rAnxA1 reduced both HSC (LSKCD90lowFLK-2−) and GMP populations while enhancing mature cells (Gr1+Mac1+). Moreover, rAnxA1 induced LSK cell proliferation (Ki67+), increasing the percentage of cells in the S/G2/M cell cycle phases and reducing Notch-1 expression. Simultaneous treatment with WRW4, a selective FPR2 antagonist, reversed the in vitro effects elicited by rAnxA1. Treatment of LSK cells with rAnxA1 led to phosphorylation of PCLγ2, PKC, RAS, MEK, and ERK1/2 with increased expression of NFAT2. In long-term bone marrow cultures, rAnxA1 did not alter the percentage of LSK cells but enhanced the Gr-1+Mac-1+ population; treatment with a PLC (U73122), but not with a PKC (GF109203), inhibitor reduced rAnxA1-induced phosphorylation of ERK1/2 and Elk1. Therefore, we identify here rAnxA1 as an inducer of HSC/progenitor cell differentiation, favouring differentiation of the myeloid/granulocytic lineage, via Ca2+/MAPK signalling transduction pathways.
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19
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Kadomatsu T, Oike Y. Roles of angiopoietin-like proteins in regulation of stem cell activity. J Biochem 2019; 165:309-315. [PMID: 30690458 DOI: 10.1093/jb/mvz005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/17/2019] [Indexed: 02/04/2023] Open
Abstract
Various types of stem cells reside in the body and self-renew throughout an organism's lifetime. Such self-renewal is essential for maintenance of tissue homeostasis and is co-ordinately regulated by stem cell-intrinsic signals and signals from stem cell niche. Angiopoietin is a niche-derived signalling molecule well known to contribute to maintenance of haematopoietic stem cells (HSCs). Angiopoietin-like proteins (ANGPTLs) are structurally similar to angiopoietin, and recent studies reveal that they function in angiogenesis, lipid and energy metabolism and regulation of inflammation. However, unlike angiopoietins, activities of ANGPTLs in stem cell maintenance have remained unclear. Recently, several studies have reported an association of ANGPTL signalling with stem cell maintenance. Here, we summarize those findings with a focus on HSCs, intestinal stem cells, neural stem cells and cancer stem cells and discuss mechanisms underlying ANGPTL-mediated stem cell maintenance.
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Affiliation(s)
- Tsuyoshi Kadomatsu
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan.,Center for Metabolic Regulation of Healthy Aging (CMHA), Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan
| | - Yuichi Oike
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan.,Center for Metabolic Regulation of Healthy Aging (CMHA), Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan.,Core Research for Evolutional Science and Technology (CREST), Japan Agency for Medical Research and Development (AMED), 1-7-1 Otemachi, Chiyoda-ku, Tokyo, Japan
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20
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Brzozowski JS, Skelding KA. The Multi-Functional Calcium/Calmodulin Stimulated Protein Kinase (CaMK) Family: Emerging Targets for Anti-Cancer Therapeutic Intervention. Pharmaceuticals (Basel) 2019; 12:ph12010008. [PMID: 30621060 PMCID: PMC6469190 DOI: 10.3390/ph12010008] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 01/02/2019] [Accepted: 01/04/2019] [Indexed: 01/25/2023] Open
Abstract
The importance of Ca2+ signalling in key events of cancer cell function and tumour progression, such as proliferation, migration, invasion and survival, has recently begun to be appreciated. Many cellular Ca2+-stimulated signalling cascades utilise the intermediate, calmodulin (CaM). The Ca2+/CaM complex binds and activates a variety of enzymes, including members of the multifunctional Ca2+/calmodulin-stimulated protein kinase (CaMK) family. These enzymes control a broad range of cancer-related functions in a multitude of tumour types. Herein, we explore the cancer-related functions of these kinases and discuss their potential as targets for therapeutic intervention.
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Affiliation(s)
- Joshua S Brzozowski
- Priority Research Centre for Cancer Research, Innovation and Translation, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute (HMRI) and University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Kathryn A Skelding
- Priority Research Centre for Cancer Research, Innovation and Translation, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute (HMRI) and University of Newcastle, Callaghan, NSW 2308, Australia.
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21
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Shao H, Ma L, Jin F, Zhou Y, Tao M, Teng Y. Immune inhibitory receptor LILRB2 is critical for the endometrial cancer progression. Biochem Biophys Res Commun 2018; 506:243-250. [PMID: 30343889 DOI: 10.1016/j.bbrc.2018.09.114] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 09/17/2018] [Indexed: 01/02/2023]
Abstract
Although leukocyte immunoglobulin-like receptor subfamily B member 2 (LILRB2) is known as an immune inhibitory receptor to suppress the immune system, its function in cancer development remains largely unknown. Herein, we provide the first body of information showing that LILRB2 is highly expressed in the endometrial cancer. More importantly, the expression levels of LILRB2 are inversely correlated with the overall patients' survival. Knockdown of LILRB2 results in a dramatic decrease in the proliferation, colony formation and migration in several endometrial cancer cell lines in vitro. Furthermore, in vivo xenograft experiments reveal a notable reduction of tumor cell growth. Mechanistically, LILRB2 enhances the SHP2/CaMK1/CREB signaling pathways to support the expansion and migration of the endometrial cancer cells. These findings unravel an unexpected role of LILRB2 in solid cancers except for its canonical role in immune surveillance, which may serve as a potential endometrial stem cell marker and may benefit the development of novel strategies for the treatment of endometrial cancers.
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Affiliation(s)
- Hongfang Shao
- Center of Reproductive Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, People's Republic of China
| | - Li Ma
- Department of Gynecology and Obstetrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, People's Republic of China
| | - Feng Jin
- Department of Gynecology and Obstetrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, People's Republic of China
| | - Yang Zhou
- Center of Reproductive Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, People's Republic of China
| | - Minfang Tao
- Center of Reproductive Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, People's Republic of China.
| | - Yincheng Teng
- Center of Reproductive Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, People's Republic of China; Department of Gynecology and Obstetrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, People's Republic of China.
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22
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Williams JN, Kambrath AV, Patel RB, Kang KS, Mével E, Li Y, Cheng YH, Pucylowski AJ, Hassert MA, Voor MJ, Kacena MA, Thompson WR, Warden SJ, Burr DB, Allen MR, Robling AG, Sankar U. Inhibition of CaMKK2 Enhances Fracture Healing by Stimulating Indian Hedgehog Signaling and Accelerating Endochondral Ossification. J Bone Miner Res 2018; 33:930-944. [PMID: 29314250 PMCID: PMC6549722 DOI: 10.1002/jbmr.3379] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 12/18/2017] [Accepted: 12/29/2017] [Indexed: 01/15/2023]
Abstract
Approximately 10% of all bone fractures do not heal, resulting in patient morbidity and healthcare costs. However, no pharmacological treatments are currently available to promote efficient bone healing. Inhibition of Ca2+ /calmodulin (CaM)-dependent protein kinase kinase 2 (CaMKK2) reverses age-associated loss of trabecular and cortical bone volume and strength in mice. In the current study, we investigated the role of CaMKK2 in bone fracture healing and show that its pharmacological inhibition using STO-609 accelerates early cellular and molecular events associated with endochondral ossification, resulting in a more rapid and efficient healing of the fracture. Within 7 days postfracture, treatment with STO-609 resulted in enhanced Indian hedgehog signaling, paired-related homeobox (PRX1)-positive mesenchymal stem cell (MSC) recruitment, and chondrocyte differentiation and hypertrophy, along with elevated expression of osterix, vascular endothelial growth factor, and type 1 collagen at the fracture callus. Early deposition of primary bone by osteoblasts resulted in STO-609-treated mice possessing significantly higher callus bone volume by 14 days following fracture. Subsequent rapid maturation of the bone matrix bestowed fractured bones in STO-609-treated animals with significantly higher torsional strength and stiffness by 28 days postinjury, indicating accelerated healing of the fracture. Previous studies indicate that fixed and closed femoral fractures in the mice take 35 days to fully heal without treatment. Therefore, our data suggest that STO-609 potentiates a 20% acceleration of the bone healing process. Moreover, inhibiting CaMKK2 also imparted higher mechanical strength and stiffness at the contralateral cortical bone within 4 weeks of treatment. Taken together, the data presented here underscore the therapeutic potential of targeting CaMKK2 to promote efficacious and rapid healing of bone fractures and as a mechanism to strengthen normal bones. © 2018 American Society for Bone and Mineral Research.
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Affiliation(s)
- Justin N. Williams
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN
| | | | - Roshni B. Patel
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN
| | - Kyung Shin Kang
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN
| | - Elsa Mével
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN
| | - Yong Li
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN
| | - Ying-Hua Cheng
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
| | - Austin J Pucylowski
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN
| | - Mariah A. Hassert
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, Saint Louis, Missouri
| | - Michael J. Voor
- Department of Orthopaedic Surgery, University of Louisville School of Medicine, Louisville, KY
- Department of Bioengineering, University of Louisville Speed School of Engineering, Louisville, KY
| | - Melissa A. Kacena
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - William R. Thompson
- Department of Physical Therapy, School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, IN
| | - Stuart J. Warden
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN
- Department of Physical Therapy, School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, IN
| | - David B. Burr
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN
| | - Matthew R. Allen
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - Alexander G Robling
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN
| | - Uma Sankar
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN
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Kang X, Cui C, Wang C, Wu G, Chen H, Lu Z, Chen X, Wang L, Huang J, Geng H, Zhao M, Chen Z, Müschen M, Wang HY, Zhang CC. CAMKs support development of acute myeloid leukemia. J Hematol Oncol 2018; 11:30. [PMID: 29482582 PMCID: PMC5828341 DOI: 10.1186/s13045-018-0574-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 02/12/2018] [Indexed: 01/19/2023] Open
Abstract
Background We recently identified the human leukocyte immunoglobulin-like receptor B2 (LILRB2) and its mouse ortholog-paired Ig-like receptor (PirB) as receptors for several angiopoietin-like proteins (Angptls). We also demonstrated that PirB is important for the development of acute myeloid leukemia (AML), but exactly how an inhibitory receptor such as PirB can support cancer development is intriguing. Results Here, we showed that the activation of Ca (2+)/calmodulin-dependent protein kinases (CAMKs) is coupled with PirB signaling in AML cells. High expression of CAMKs is associated with a poor overall survival probability in patients with AML. Knockdown of CAMKI or CAMKIV decreased human acute leukemia development in vitro and in vivo. Mouse AML cells that are defective in PirB signaling had decreased activation of CAMKs, and the forced expression of CAMK partially rescued the PirB-defective phenotype in the MLL-AF9 AML mouse model. The inhibition of CAMK kinase activity or deletion of CAMKIV significantly slowed AML development and decreased the AML stem cell activity. We also found that CAMKIV acts through the phosphorylation of one of its well-known target (CREB) in AML cells. Conclusion CAMKs are essential for the growth of human and mouse AML. The inhibition of CAMK signaling may become an effective strategy for treating leukemia. Electronic supplementary material The online version of this article (10.1186/s13045-018-0574-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xunlei Kang
- Departments of Physiology and Developmental Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA. .,Center for Precision Medicine, Department of Medicine, University of Missouri, 1 Hospital Drive, Columbia, MO, 65212, USA.
| | - Changhao Cui
- Departments of Physiology and Developmental Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA.,School of Life Science and Medicine, Dalian University of Technology, Liaoning, 124221, China
| | - Chen Wang
- Center for Precision Medicine, Department of Medicine, University of Missouri, 1 Hospital Drive, Columbia, MO, 65212, USA.,Department of Hematology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Guojin Wu
- Departments of Physiology and Developmental Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Heyu Chen
- Departments of Physiology and Developmental Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Zhigang Lu
- Departments of Physiology and Developmental Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Xiaoli Chen
- Departments of Physiology and Developmental Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Li Wang
- School of Life Science and Medicine, Dalian University of Technology, Liaoning, 124221, China
| | - Jie Huang
- Department of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, MO, 65409, USA
| | - Huimin Geng
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Meng Zhao
- Department of Hematology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhengshan Chen
- Department of Systems Biology, Beckman Research Institute, Monrovia, CA, 91016, USA
| | - Markus Müschen
- Department of Systems Biology, Beckman Research Institute, Monrovia, CA, 91016, USA
| | - Huan-You Wang
- Department of Pathology, University of California San Diego, La Jolla, CA, 92093, USA
| | - Cheng Cheng Zhang
- Departments of Physiology and Developmental Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA.
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Pan M, Zhang Q, Liu P, Huang J, Wang Y, Chen S. Inhibition of the nuclear export of p65 and IQCG in leukemogenesis by NUP98-IQCG. Front Med 2016; 10:410-419. [PMID: 27864780 DOI: 10.1007/s11684-016-0489-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Accepted: 09/29/2016] [Indexed: 01/04/2023]
Abstract
NUP98 fuses with approximately 34 different partner genes via translocation in hematological malignancies. Transgenic or retrovirus-mediated bone marrow transplanted mouse models reveal the leukemogenesis of some NUP98-related fusion genes. We previously reported the fusion protein NUP98-IQ motif containing G (IQCG) in a myeloid/T lymphoid bi-phenoleukemia patient with t(3;11) and confirmed its leukemogenic ability. Herein, we demonstrated the association of NUP98-IQCG with CRM1, and found that NUP98-IQCG expression inhibits the CRM1-mediated nuclear export of p65 and enhances the transcriptional activity of nuclear factor-κB. Moreover, IQCG could be entrapped in the nucleus by NUP98-IQCG, and the fusion protein interacts with calmodulin via the IQ motif in a calcium-independent manner. Therefore, the inhibition of nuclear exports of p65 and IQCG might contribute to the leukemogenesis of NUP98-IQCG.
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Affiliation(s)
- Mengmeng Pan
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai, 200025, China
| | - Qiyao Zhang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai, 200025, China
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate School, Chinese Academy of Sciences and SJTU School of Medicine, Shanghai, 200025, China
| | - Ping Liu
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai, 200025, China
| | - Jinyan Huang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai, 200025, China
| | - Yueying Wang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai, 200025, China.
| | - Saijuan Chen
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated to Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai, 200025, China.
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate School, Chinese Academy of Sciences and SJTU School of Medicine, Shanghai, 200025, China.
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25
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Degan P, Ravera S, Cappelli E. Why is an energy metabolic defect the common outcome in BMFS? Cell Cycle 2016; 15:2571-2575. [PMID: 27579499 PMCID: PMC5053575 DOI: 10.1080/15384101.2016.1218103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 07/21/2016] [Accepted: 07/25/2016] [Indexed: 12/31/2022] Open
Abstract
Inherited bone marrow failure syndromes (BMFS) are rare, distressing, inherited blood disorders of children. Although the genetic origin of these pathologies involves genes with different functions, all are associated with progressive haematopoietic impairment and an excessive risk of malignancies. Defects in energy metabolism induce oxidative stress, impaired energy production and an unbalanced ratio between ATP and AMP. This assumes an important role in self-renewal and differentiation in haematopoietic stem cells (HSC) and can play an important role in bone marrow failure. Defects in energetic/respiratory metabolism, in particular in FA and SDS cells, have been described recently and seem to be a pertinent argument in the discussion of the haematopoietic defect in BMFS, as an alternative to the hypotheses already established on this subject, which may shed new light on the evolution of these diseases.
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Affiliation(s)
- Paolo Degan
- S. C. Mutagenesis, IRCCS AOU San Martino – IST (Istituto Nazionale per la Ricerca sul Cancro), CBA Torre A2, Genova, Italy
| | - Silvia Ravera
- DIFAR-Biochemistry Lab., Department of Pharmacy, University of Genova, Genova, Italy
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26
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Calcium/calmodulin-dependent protein kinase IV: A multifunctional enzyme and potential therapeutic target. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2016; 121:54-65. [PMID: 26773169 DOI: 10.1016/j.pbiomolbio.2015.12.016] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 12/21/2015] [Accepted: 12/28/2015] [Indexed: 01/23/2023]
Abstract
The calcium/calmodulin-dependent protein kinase IV (CAMKIV) belongs to the serine/threonine protein kinase family, and is primarily involved in transcriptional regulation in lymphocytes, neurons and male germ cells. CAMKIV operates the signaling cascade and regulates activity of several transcription activators by phosphorylation, which in turn plays pivotal roles in immune response, inflammation and memory consolidation. In this review, we tried to focus on different aspects of CAMKIV to understand the significance of this protein in the biological system. This enzyme is associated with varieties of disorders such as cerebral hypoxia, azoospermia, endometrial and ovarian cancer, systemic lupus, etc., and hence it is considered as a potential therapeutic target. Structure of CAMKIV is comprised of five distinct domains in which kinase domain is responsible for enzyme activity. CAMKIV is involved in varieties of cellular functions such as regulation of gene expression, T-cell maturation, regulation of survival phase of dendritic cells, bone growth and metabolism, memory consolidation, sperm motility, regulation of microtubule dynamics, cell-cycle progression and apoptosis. In this review, we performed an extensive analysis on structure, function and regulation of CAMKIV and associated diseases.
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27
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Pritchard ZJ, Cary RL, Yang C, Novack DV, Voor MJ, Sankar U. Inhibition of CaMKK2 reverses age-associated decline in bone mass. Bone 2015; 75:120-7. [PMID: 25724145 PMCID: PMC4737584 DOI: 10.1016/j.bone.2015.01.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 01/26/2015] [Accepted: 01/28/2015] [Indexed: 02/07/2023]
Abstract
Decline in bone formation is a major contributing factor to the loss of bone mass associated with aging. We previously showed that the genetic ablation of the tissue-restricted and multifunctional Ca(2+)/calmodulin (CaM)-dependent protein kinase kinase 2 (CaMKK2) stimulates trabecular bone mass accrual, mainly by promoting anabolic pathways and inhibiting catabolic pathways of bone remodeling. In this study, we investigated whether inhibition of this kinase using its selective cell-permeable inhibitor STO-609 will stimulate bone formation in 32 week old male WT mice and reverse age-associated of decline in bone volume and strength. Tri-weekly intraperitoneal injections of saline or STO-609 (10 μM) were performed for six weeks followed by metabolic labeling with calcein and alizarin red. New bone formation was assessed by dynamic histomorphometry whereas micro-computed tomography was employed to measure trabecular bone volume, microarchitecture and femoral mid-shaft geometry. Cortical and trabecular bone biomechanical properties were assessed using three-point bending and punch compression methods respectively. Our results reveal that as they progress from 12 to 32 weeks of age, WT mice sustain a significant decline in trabecular bone volume, microarchitecture and strength as well as cortical bone strength. However, treatment of the 32 week old WT mice with STO-609 stimulated apposition of new bone and completely reversed the age-associated decrease in bone volume, quality, as well as trabecular and cortical bone strength. We also observed that regardless of age, male Camkk2(-/-) mice possessed significantly elevated trabecular bone volume, microarchitecture and compressive strength as well as cortical bone strength compared to age-matched WT mice, implying that the chronic loss of this kinase attenuates age-associated decline in bone mass. Further, whereas STO-609 treatment and/or the absence of CaMKK2 significantly enhanced the femoral mid-shaft geometry, the mid-shaft cortical wall thickness and material bending stress remained similar among the cohorts, implying that regardless of treatment, the material properties of the bone remain similar. Thus, our cumulative results provide evidence for the pharmacological inhibition of CaMKK2 as a bone anabolic strategy in combating age-associated osteoporosis.
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Affiliation(s)
- Zachary J Pritchard
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, USA
| | - Rachel L Cary
- James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, KY, USA
| | - Chang Yang
- Department of Medicine and Pathology, Washington University School of Medicine, St. Louis, MO, USA
| | - Deborah V Novack
- Department of Medicine and Pathology, Washington University School of Medicine, St. Louis, MO, USA
| | - Michael J Voor
- Department of Orthopaedic Surgery, University of Louisville School of Medicine, Louisville, KY, USA; Department of Bioengineering, University of Louisville Speed School of Engineering, Louisville, KY, USA.
| | - Uma Sankar
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, USA; James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, KY, USA; Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA.
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Ciccarelli M, Rusciano M, Sorriento D, Maione AS, Soprano M, Iaccarino G, Illario M. Messages from the Border: Novel Insights in Signal Transduction Pathways Involved in Tumor Invasion and Metastasis. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/jct.2015.62022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Monaco S, Rusciano MR, Maione AS, Soprano M, Gomathinayagam R, Todd LR, Campiglia P, Salzano S, Pastore L, Leggiero E, Wilkerson DC, Rocco M, Selleri C, Iaccarino G, Sankar U, Illario M. A novel crosstalk between calcium/calmodulin kinases II and IV regulates cell proliferation in myeloid leukemia cells. Cell Signal 2014; 27:204-14. [PMID: 25446257 DOI: 10.1016/j.cellsig.2014.11.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 10/24/2014] [Accepted: 11/08/2014] [Indexed: 12/26/2022]
Abstract
CaMKs link transient increases in intracellular Ca(2+) with biological processes. In myeloid leukemia cells, CaMKII, activated by the bcr-abl oncogene, promotes cell proliferation. Inhibition of CaMKII activity restricts cell proliferation, and correlates with growth arrest and differentiation. The mechanism by which the inhibition of CaMKII results in growth arrest and differentiation in myeloid leukemia cells is still unknown. We report that inhibition of CaMKII activity results in an upregulation of CaMKIV mRNA and protein in leukemia cell lines. Conversely, expression of CaMKIV inhibits autophosphorylation and activation of CaMKII, and elicits G0/G1cell cycle arrest,impairing cell proliferation. Furthermore, U937 cells expressing CaMKIV show elevated levels of Cdk inhibitors p27(kip1) and p16(ink4a) and reduced levels of cyclins A, B1 and D1. These findings were also confirmed in the K562 leukemic cell line. The relationship between CaMKII and CaMKIV is also observed in primary acute myeloid leukemia (AML) cells, and it correlates with their immunophenotypic profile. Indeed, immature MO/M1 AML showed increased CaMKIV expression and decreased pCaMKII, whereas highly differentiated M4/M5 AML showed decreased CaMKIV expression and increased pCaMKII levels. Our data reveal a novel cross-talk between CaMKII and CaMKIV and suggest that CaMKII suppresses the expression of CaMKIV to promote leukemia cell proliferation.
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Affiliation(s)
- Sara Monaco
- Dipartimento di Scienze Mediche Traslazionali, Federico II University, Naples, Italy
| | | | - Angela S Maione
- Dipartimento di Scienze Mediche Traslazionali, Federico II University, Naples, Italy
| | - Maria Soprano
- Dipartimento di Scienze Mediche Traslazionali, Federico II University, Naples, Italy
| | - Rohini Gomathinayagam
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Lance R Todd
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Pietro Campiglia
- Dipartimento di Scienze Farmaceutiche, Università di Salerno, Fisciano, Salerno,Italy
| | - Salvatore Salzano
- Instituto di Endocrinologia ed Oncologia Sperimentale, CNR, Naples, Italy
| | - Lucio Pastore
- CEINGE-Biotecnologie Avanzate, Italy; Dipartimento di Biochimica e Biotecnologie Mediche, Federico II University, Naples, Italy
| | | | - Donald C Wilkerson
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Monia Rocco
- Experimental Pharmacology Unit, Department of Research, National Cancer Institute "Fondazione G. Pascale", Napoli, Italy
| | - Carmine Selleri
- Hematology Unit, Azienda Ospedaliera Universitaria "S. Giovanni di Dio e Ruggi d'Aragona", Salerno, Italy
| | - Guido Iaccarino
- Department of Medicine, University of Salerno, Italy; IRCCS "Multimedica", Milan, Italy
| | - Uma Sankar
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA.
| | - Maddalena Illario
- Dipartimento di Scienze Mediche Traslazionali, Federico II University, Naples, Italy.
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Barbosa CMV, Bincoletto C, Barros CC, Ferreira AT, Paredes-Gamero EJ. PLCγ2 and PKC are important to myeloid lineage commitment triggered by M-SCF and G-CSF. J Cell Biochem 2014; 115:42-51. [PMID: 24038146 DOI: 10.1002/jcb.24653] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 08/14/2013] [Indexed: 11/06/2022]
Abstract
Myeloid differentiation is a complex process whereby mature granulocytes or monocytes/macrophages are derived from a common myeloid progenitor through the coordinated action of hematopoietic cytokines. In this study, we explored the role of the Ca(2+)i signaling transduction pathway in the commitment of hematopoietic stem/progenitor cells to either the monocytic or granulocytic lineage in response to macrophage colony-stimulating factor (M-CSF) and granulocyte colony-stimulating factor (G-CSF). M-CSF and G-CSF induce cell expansion and monocyte or granulocyte differentiation, respectively, without affecting the percentage of hematopoietic progenitor cells. Colony-forming units (CFUs) and flow cytometry demonstrated the involvement of phospholipase Cγ (PLCγ) and protein kinase C (PKC) in monocyte/granulocyte commitment. In addition, using flow cytometry and RNA interference, we identified PLCγ2 as the PLCγ isoform that participates in this cell expansion and differentiation. Differences in signaling elicited by M-CSF and G-CSF were observed. The M-CSF-related effects were associated with the activation of ERK1/2 and nuclear factor of activated T-cells (NFAT); the inhibition of both molecules reduced the number of colonies in a CFU assay. In contrast, using flow cytometry and confocal evaluation, we demonstrated that G-CSF activated Jak-1 and STAT-3. Additionally, the effects induced by G-CSF were also related with the participation of Ca(2+) calmodulin kinase II and the transcription factor PU.1. STAT-3 activation and the increase of PU.1 expression were sensitive to PLC inhibition by U73122. These data show that PLCγ2 and PKC are important upstream signals that regulate myelopoiesis through cytokines, and differences in M-CSF and G-CSF downstream signaling were identified.
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Abstract
A better understanding of the interaction between extrinsic factors and surface receptors on stem cells will greatly benefit stem cell research and applications. Recently, we showed that several angiopoietin-like proteins (Angptls) bind and activate the immune inhibitory receptor human leukocyte immunoglobulin (Ig)-like receptor B2 (LILRB2) to support ex vivo expansion of hematopoietic stem cells (HSCs) and leukemia development. However, the molecular basis for the interaction between Angptls and LILRB2 was unclear. Here, we demonstrate that Angptl2 expressed in mammalian cells forms high-molecular-weight species and that ligand multimerization is required for activation of LILRB2 for downstream signaling. A novel motif in the first and fourth Ig domains of LILRB2 was identified that is necessary for the receptor to be bound and activated by Angptl2. The binding of Angptl2 to LILRB2 is more potent than and not completely overlapped with the binding of another ligand, HLA-G. Immobilized anti-LILRB2 antibodies induce a more potent activation of LILRB2 than Angptl2, and we developed a serum-free culture containing defined cytokines and immobilized anti-LILRB2 that supports a net expansion of repopulating human cord blood HSCs. Our elucidation of the mode of Angptl binding to LILRB2 enabled the development of a new approach for ex vivo expansion of human HSCs.
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32
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Functional and molecular features of the calmodulin-interacting protein IQCG required for haematopoiesis in zebrafish. Nat Commun 2014; 5:3811. [PMID: 24787902 DOI: 10.1038/ncomms4811] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Accepted: 04/04/2014] [Indexed: 12/19/2022] Open
Abstract
We previously reported a fusion protein NUP98-IQCG in an acute leukaemia, which functions as an aberrant regulator of transcriptional expression, yet the structure and function of IQCG have not been characterized. Here we use zebrafish to investigate the role of iqcg in haematopoietic development, and find that the numbers of haematopoietic stem cells and multilineage-differentiated cells are reduced in iqcg-deficient embryos. Mechanistically, IQCG binds to calmodulin (CaM) and acts as a molecule upstream of CaM-dependent kinase IV (CaMKIV). Crystal structures of complexes between CaM and IQ domain of IQCG reveal dual CaM-binding footprints in this motif, and provide a structural basis for a higher CaM-IQCG affinity when deprived of calcium. The results collectively allow us to understand IQCG-mediated calcium signalling in haematopoiesis, and propose a model in which IQCG stores CaM at low cytoplasmic calcium concentrations, and releases CaM to activate CaMKIV when calcium level rises.
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Berchtold MW, Villalobo A. The many faces of calmodulin in cell proliferation, programmed cell death, autophagy, and cancer. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2013; 1843:398-435. [PMID: 24188867 DOI: 10.1016/j.bbamcr.2013.10.021] [Citation(s) in RCA: 230] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Revised: 10/24/2013] [Accepted: 10/26/2013] [Indexed: 12/21/2022]
Abstract
Calmodulin (CaM) is a ubiquitous Ca(2+) receptor protein mediating a large number of signaling processes in all eukaryotic cells. CaM plays a central role in regulating a myriad of cellular functions via interaction with multiple target proteins. This review focuses on the action of CaM and CaM-dependent signaling systems in the control of vertebrate cell proliferation, programmed cell death and autophagy. The significance of CaM and interconnected CaM-regulated systems for the physiology of cancer cells including tumor stem cells, and processes required for tumor progression such as growth, tumor-associated angiogenesis and metastasis are highlighted. Furthermore, the potential targeting of CaM-dependent signaling processes for therapeutic use is discussed.
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Key Words
- (4-[3,5-bis-[2-(4-hydroxy-3-methoxy-phenyl)-ethyl]-4,5-dihydro-pyrazol-1-yl]-benzoic acid
- (4-[3,5-bis-[2-(4-hydroxy-3-methoxy-phenyl)-vinyl]-4,5-dihydro-pyrazol-1-yl]-phenyl)-(4-methyl-piperazin-1-yl)-methanone
- (−) enantiomer of dihydropyrine 3-methyl-5-3-(4,4-diphenyl-1-piperidinyl)-propyl-1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-piridine-3,5-dicarboxylate-hydrochloride (niguldipine)
- 1-[N,O-bis(5-isoquinolinesulfonyl)-N-methyl-l-tyrosyl]-4-phenylpiperazine
- 12-O-tetradecanoyl-phorbol-13-acetate
- 2-chloro-(ε-amino-Lys(75))-[6-(4-(N,N′-diethylaminophenyl)-1,3,5-triazin-4-yl]-CaM adduct
- 3′-(β-chloroethyl)-2′,4′-dioxo-3,5′-spiro-oxazolidino-4-deacetoxy-vinblastine
- 7,12-dimethylbenz[a]anthracene
- Apoptosis
- Autophagy
- B859-35
- CAPP(1)-CaM
- Ca(2+) binding protein
- Calmodulin
- Cancer biology
- Cell proliferation
- DMBA
- EBB
- FL-CaM
- FPCE
- HBC
- HBCP
- J-8
- KAR-2
- KN-62
- KN-93
- N-(4-aminobutyl)-2-naphthalenesulfonamide
- N-(4-aminobutyl)-5-chloro-2-naphthalenesulfonamide
- N-(6-aminohexyl)-1-naphthalenesulfonamide
- N-(6-aminohexyl)-5-chloro-1-naphthalenesulfonamide
- N-8-aminooctyl-5-iodo-naphthalenesulfonamide
- N-[2-[N-(4-chlorocinnamyl)-N-methylaminomethyl]phenyl]-N-(2-hydroxyethyl)-4-methoxybenzenesulfonamide
- O-(4-ethoxyl-butyl)-berbamine
- RITC-CaM
- TA-CaM
- TFP
- TPA
- W-12
- W-13
- W-5
- W-7
- fluorescein-CaM adduct
- fluphenazine-N-2-chloroethane
- norchlorpromazine-CaM adduct
- rhodamine isothiocyanate-CaM adduct
- trifluoperazine
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Affiliation(s)
- Martin W Berchtold
- Department of Biology, University of Copenhagen, Copenhagen Biocenter 4-2-09 Ole Maaløes Vej 5, DK-2200 Copenhagen N, Denmark.
| | - Antonio Villalobo
- Instituto de Investigaciones Biomédicas, Department of Cancer Biology, Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, c/Arturo Duperier 4, E-28029 Madrid, Spain.
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Pulendran B, Oh JZ, Nakaya HI, Ravindran R, Kazmin DA. Immunity to viruses: learning from successful human vaccines. Immunol Rev 2013; 255:243-55. [PMID: 23947360 PMCID: PMC3748616 DOI: 10.1111/imr.12099] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
For more than a century, immunologists and vaccinologists have existed in parallel universes. Immunologists have for long reveled in using 'model antigens', such as chicken egg ovalbumin or nitrophenyl haptens, to study immune responses in model organisms such as mice. Such studies have yielded many seminal insights about the mechanisms of immune regulation, but their relevance to humans has been questioned. In another universe, vaccinologists have relied on human clinical trials to assess vaccine efficacy, but have done little to take advantage of such trials for studying the nature of immune responses to vaccination. The human model provides a nexus between these two universes, and recent studies have begun to use this model to study the molecular profile of innate and adaptive responses to vaccination. Such 'systems vaccinology' studies are beginning to provide mechanistic insights about innate and adaptive immunity in humans. Here, we present an overview of such studies, with particular examples from studies with the yellow fever and the seasonal influenza vaccines. Vaccination with the yellow fever vaccine causes a systemic acute viral infection and thus provides an attractive model to study innate and adaptive responses to a primary viral challenge. Vaccination with the live attenuated influenza vaccine causes a localized acute viral infection in mucosal tissues and induces a recall response, since most vaccinees have had prior exposure to influenza, and thus provides a unique opportunity to study innate and antigen-specific memory responses in mucosal tissues and in the blood. Vaccination with the inactivated influenza vaccine offers a model to study immune responses to an inactivated immunogen. Studies with these and other vaccines are beginning to reunite the estranged fields of immunology and vaccinology, yielding unexpected insights about mechanisms of viral immunity. Vaccines that have been proven to be of immense benefit in saving lives offer us a new fringe benefit: lessons in viral immunology.
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Shen-Orr SS, Furman D. Variability in the immune system: of vaccine responses and immune states. Curr Opin Immunol 2013; 25:542-7. [PMID: 23953808 PMCID: PMC3788704 DOI: 10.1016/j.coi.2013.07.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 07/24/2013] [Accepted: 07/29/2013] [Indexed: 01/10/2023]
Abstract
System-wide approaches are now being applied to study vaccine responses, whose mechanisms of action, and failure, are not well understood. These works have repeatedly shown vaccine response to be an orchestrated process involving multiple arms of immunity most noticeable sensing and innate components. Prediction of vaccine responses based on system-wide measures is achievable, but challenges remain for robust population wide predictions based only on pre-vaccination measures, especially in partially efficacious vaccines such as influenza. This is especially true in older adults, who are often less responsive to vaccination and exhibit high level of variation compared to young in many components of immunity. Despite this increase in variation, most of the studies on aging use group averages of immune phenotypes to model immune system behavior. Using systems approaches, it is possible to exploit this variation to form distinguishable clusters of phenotypes within and across individuals to discover underlying immune states.
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Affiliation(s)
- Shai S Shen-Orr
- Rappaport Institute of Medical Research, Faculty of Medicine and Faculty of Biology, Technion-Israel Institute of Technology, Haifa 31096, Israel.
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Xiang F, Cui B, Gao Q, Zhang J, Zhang J, Li W. Decreased levels of Ca²⁺-calmodulin-dependent protein kinase IV in the testis as a contributing factor to reduced fertility in male Crybb2⁻/⁻ mice. Int J Mol Med 2012; 30:1145-51. [PMID: 22948125 DOI: 10.3892/ijmm.2012.1116] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 07/06/2012] [Indexed: 11/06/2022] Open
Abstract
βB2-crystallin (Crybb2), a member of the βγ-crystallin superfamily, in conjunction with α-crystallin, constitute the major proteins of the mammalian eye lens. Crybb2 is also expressed outside the lens, and certain related functions in these tissues have been reported. In the present study, in order to define the physiological role of Crybb2, we generated mice with a targeted deletion of the Crybb2 gene. Surprisingly, fertility was markedly reduced in male homozygous knockout mice compared to wild-type (WT) mice. Further experiments were performed to explore the underlying mechanism of subfertility in male Crybb2⁻/⁻ mice. Our results showed that Crybb2 was mainly expressed in the spermatogonia from the testes of mice with the WT C57BL/C genetic background. The testes of 4-week-old Crybb2⁻/⁻ mice were significantly hyperplastic, and no significant difference was found within 3 weeks postpartum. Additionally, there was a marked increase in the proliferation and apoptosis of germ cells, and the biological defects of these cells correlated with the decreased Bcl-2 levels, which correlated with the reduction of Ca²⁺-calmodulin-dependent protein kinase IV (CaMKIV) in the testis. These results suggest that the reduced fertility of Crybb2⁻/⁻ male mice may result from the disordered proliferation and apoptosis of germ cells in the testis, possibly due to reduced CaMKIV from the loss of Crybb2.
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Affiliation(s)
- Fenfen Xiang
- Department of Laboratory Diagnosis, Changhai Hospital, Second Military Medical University, Shanghai 200433, PR China
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Racioppi L, Means AR. Calcium/calmodulin-dependent protein kinase kinase 2: roles in signaling and pathophysiology. J Biol Chem 2012; 287:31658-65. [PMID: 22778263 DOI: 10.1074/jbc.r112.356485] [Citation(s) in RCA: 204] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Many cellular Ca(2+)-dependent signaling cascades utilize calmodulin (CaM) as the intracellular Ca(2+) receptor. Ca(2+)/CaM binds and activates a plethora of enzymes, including CaM kinases (CaMKs). CaMKK2 is one of the most versatile of the CaMKs and will phosphorylate and activate CaMKI, CaMKIV, and AMP-activated protein kinase. Cell expression of CaMKK2 is limited, yet CaMKK2 is involved in regulating many important physiological and pathophysiological processes, including energy balance, adiposity, glucose homeostasis, hematopoiesis, inflammation, and cancer. Here, we explore known functions of CaMKK2 and discuss its potential as a target for therapeutic intervention.
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Affiliation(s)
- Luigi Racioppi
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Duke University, Durham, North Carolina 27710, USA.
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Yamada T, Park CS, Burns A, Nakada D, Lacorazza HD. The cytosolic protein G0S2 maintains quiescence in hematopoietic stem cells. PLoS One 2012; 7:e38280. [PMID: 22693613 PMCID: PMC3365016 DOI: 10.1371/journal.pone.0038280] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Accepted: 05/02/2012] [Indexed: 02/06/2023] Open
Abstract
Bone marrow hematopoietic stem cells (HSCs) balance proliferation and differentiation by integrating complex transcriptional and post-translational mechanisms regulated by cell intrinsic and extrinsic factors. We found that transcripts of G(0)/G(1) switch gene 2 (G0S2) are enriched in lineage(-) Sca-1(+) c-kit(+) (LSK) CD150(+) CD48(-) CD41(-) cells, a population highly enriched for quiescent HSCs, whereas G0S2 expression is suppressed in dividing LSK CD150(+) CD48(-) cells. Gain-of-function analyses using retroviral expression vectors in bone marrow cells showed that G0S2 localizes to the mitochondria, endoplasmic reticulum, and early endosomes in hematopoietic cells. Co-transplantation of bone marrow cells transduced with the control or G0S2 retrovirus led to increased chimerism of G0S2-overexpressing cells in femurs, although their contribution to the blood was reduced. This finding was correlated with increased quiescence in G0S2-overexpressing HSCs (LSK CD150(+) CD48(-)) and progenitor cells (LS(-)K). Conversely, silencing of endogenous G0S2 expression in bone marrow cells increased blood chimerism upon transplantation and promoted HSC cell division, supporting an inhibitory role for G0S2 in HSC proliferation. A proteomic study revealed that the hydrophobic domain of G0S2 interacts with a domain of nucleolin that is rich in arginine-glycine-glycine repeats, which results in the retention of nucleolin in the cytosol. We showed that this cytosolic retention of nucleolin occurs in resting, but not proliferating, wild-type LSK CD150(+) CD48(-) cells. Collectively, we propose a novel model of HSC quiescence in which elevated G0S2 expression can sequester nucleolin in the cytosol, precluding its pro-proliferation functions in the nucleolus.
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Affiliation(s)
- Takeshi Yamada
- Department of Pathology & Immunology, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, United States of America
| | - Chun Shik Park
- Department of Pathology & Immunology, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, United States of America
| | - Audrea Burns
- Department of Pathology & Immunology, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, United States of America
| | - Daisuke Nakada
- Department of Molecular and Human Genetics, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, United States of America
| | - H. Daniel Lacorazza
- Department of Pathology & Immunology, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, United States of America
- Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, United States of America
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Inhibitory receptors bind ANGPTLs and support blood stem cells and leukaemia development. Nature 2012; 485:656-60. [PMID: 22660330 PMCID: PMC3367397 DOI: 10.1038/nature11095] [Citation(s) in RCA: 208] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Accepted: 03/29/2012] [Indexed: 01/05/2023]
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Abstract
PURPOSE OF REVIEW The use of systems biology approaches to understand and predict vaccine-induced immunity promises to revolutionize vaccinology. For centuries vaccines were developed empirically, with very little understanding of the mechanisms by which they mediate protective immunity. The so-called systems vaccinology approach employs high-throughput technologies (e.g. microarrays, RNA-seq and mass spectrometry-based proteomics and metabolomics) and computational modeling to describe the complex interactions between all the parts of immune system, with a view to elucidating new biological rules capable of predicting the behavior of the system. RECENT FINDINGS Systems biology successfully applied to yellow-fever and influenza vaccines has led to the discovery of signatures that predict vaccine immunogenicity, and promises to advance basic immunology research by providing novel mechanistic insights about immune regulation. However a major challenge of systems vaccinology concerns the analyses and interpretation of the large and noisy data sets generated by high-throughput techniques. Overcoming these issues, we envision that systems vaccinology will have a potential impact on vaccine development, including HIV vaccines. SUMMARY High-throughput technologies allow the investigation of vaccine-induced immune responses at system and molecular levels. These are currently being used to unravel new molecular insights about the immune system, and are on the verge of being integrated into clinical trials to enable rational vaccine design and development.
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Skelding KA, Rostas JAP. The role of molecular regulation and targeting in regulating calcium/calmodulin stimulated protein kinases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2012; 740:703-30. [PMID: 22453966 DOI: 10.1007/978-94-007-2888-2_31] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Calcium/calmodulin-stimulated protein kinases can be classified as one of two types - restricted or multifunctional. This family of kinases contains several structural similarities: all possess a calmodulin binding motif and an autoinhibitory region. In addition, all of the calcium/calmodulin-stimulated protein kinases examined in this chapter are regulated by phosphorylation, which either activates or inhibits their kinase activity. However, as the multifunctional calcium/calmodulin-stimulated protein kinases are ubiquitously expressed, yet regulate a broad range of cellular functions, additional levels of regulation that control these cell-specific functions must exist. These additional layers of control include gene expression, signaling pathways, and expression of binding proteins and molecular targeting. All of the multifunctional calcium/calmodulin-stimulated protein kinases examined in this chapter appear to be regulated by these additional layers of control, however, this does not appear to be the case for the restricted kinases.
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Affiliation(s)
- Kathryn A Skelding
- School of Biomedical Sciences and Pharmacy and Hunter Medical Research Institute, Faculty of Health, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia
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Teng EC, Racioppi L, Means AR. A cell-intrinsic role for CaMKK2 in granulocyte lineage commitment and differentiation. J Leukoc Biol 2011; 90:897-909. [PMID: 21816924 PMCID: PMC3206468 DOI: 10.1189/jlb.0311152] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Revised: 06/28/2011] [Accepted: 07/19/2011] [Indexed: 11/24/2022] Open
Abstract
Granulocytes serve a critical function in host organisms by recognizing and destroying invading microbes, as well as propagating and maintaining inflammation at sites of infection. However, the molecular pathways underpinning the development of granulocytes are poorly understood. Here, we identify a role for CaMKK2 in the restriction of granulocytic fate commitment and differentiation of myeloid progenitor cells. Following BMT, engraftment by Camkk2(-/-) donor cells resulted in the increased production of mature granulocytes in the BM and peripheral blood. Similarly, Camkk2(-/-) mice possessed elevated numbers of CMP cells and exhibited an accelerated granulopoietic phenotype in the BM. Camkk2(-/-) myeloid progenitors expressed increased levels of C/EBPα and PU.1 and preferentially differentiated into Gr1(+)Mac1(+) granulocytes and CFU-G in vitro. During normal granulopoiesis in vivo or G-CSF-induced differentiation of 32D myeloblast cells in vitro, CaMKK2 mRNA and protein were decreased as a function of time and were undetectable in mature granulocytes. Expression of ectopic CaMKK2 in Camkk2(-/-) CMPs was sufficient to rescue aberrant granulocyte differentiation and when overexpressed in 32D cells, was also sufficient to impede granulocyte differentiation in a kinase activity-dependent manner. Collectively, our results reveal a novel role for CaMKK2 as an inhibitor of granulocytic fate commitment and differentiation in early myeloid progenitors.
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Affiliation(s)
- Ellen C. Teng
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, North Carolina, USA; and
| | - Luigi Racioppi
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, North Carolina, USA; and
- Department of Cellular and Molecular Biology and Pathology, University of Naples Federico II, Naples, Italy
| | - Anthony R. Means
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, North Carolina, USA; and
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Abstract
Hematopoietic stem cells (HSC) are a relatively quiescent pool of cells that perform the arduous task of replacing the short-lived mature cells of the peripheral blood. While a rapid expansion of HSCs under periods of hematological stress is warranted, their enhanced proliferation during homeostasis leads to loss of function. We recently reported that in HSCs, the evolutionarily conserved growth factor erv1-like (Gfer) acts to counter jun activation domain-binding protein 1 (Jab1)-mediated nuclear export and destabilization of the cell cycle inhibitor, p27kip1, by directly binding to and sequestering the COP9 signalosome (CSN) subunit. Through this mechanism, Gfer promotes quiescence and maintains the functional integrity of HSCs. Here, we extend our study to demonstrate an association between Gfer and Ca2+/calmodulin-dependent protein kinase IV (CaMKIV) in the regulation of HSC proliferation. Highly proliferative and functionally deficient Camk4-/- HSCs possess significantly lower levels of Gfer and p27kip1. Ectopic expression of Gfer restores quiescence and elevates p27kip1 expression in Camk4-/- HSCs. These results further substantiate a critical role for Gfer in the restriction of unwarranted proliferation in HSCs through the inhibition of Jab1 and subsequent stabilization and nuclear retention of p27kip1. This Gfer-mediated pro-quiescence mechanism could be therapeutically exploited in the treatment of hematological malignancies associated with elevated Jab1 and reduced p27kip1.
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Affiliation(s)
- Uma Sankar
- James Graham Brown Cancer Center and Owensboro Cancer Research Program, Department of Pharmacology and Toxicology, University of Louisville, Lousville, KY, USA.
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44
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Systems biology of vaccination for seasonal influenza in humans. Nat Immunol 2011; 12:786-95. [PMID: 21743478 PMCID: PMC3140559 DOI: 10.1038/ni.2067] [Citation(s) in RCA: 632] [Impact Index Per Article: 48.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Accepted: 06/06/2011] [Indexed: 12/15/2022]
Abstract
We used a systems biological approach to study innate and adaptive responses to influenza vaccination in humans, during 3 consecutive influenza seasons. Healthy adults were vaccinated with inactivated (TIV) or live attenuated (LAIV) influenza vaccines. TIV induced greater antibody titers and enhanced numbers of plasmablasts than LAIV. In TIV vaccinees, early molecular signatures correlated with, and accurately predicted, later antibody titers in two independent trials. Interestingly, the expression of Calcium/calmodulin-dependent kinase IV (CamkIV) at day 3 was inversely correlated with later antibody titers. Vaccination of CamkIV−/− mice with TIV induced enhanced antigen-specific antibody titers, demonstrating an unappreciated role for CaMKIV in the regulation of antibody responses. Thus systems approaches can predict immunogenicity, and reveal new mechanistic insights about vaccines.
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45
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Leon CMMP, Barbosa CMV, Justo GZ, Borelli P, Resende JD, de Oliveira JSR, Ferreira AT, Paredes-Gamero EJ. Requirement for PLCγ2 in IL-3 and GM-CSF-stimulated MEK/ERK phosphorylation in murine and human hematopoietic stem/progenitor cells. J Cell Physiol 2011; 226:1780-92. [PMID: 21506110 DOI: 10.1002/jcp.22507] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Even though the involvement of intracellular Ca(2+) Ca(i)(2+) in hematopoiesis has been previously demonstrated, the relationship between Ca(i)(2+) signaling and cytokine-induced intracellular pathways remains poorly understood. Herein, the molecular mechanisms integrating Ca(2+) signaling with the extracellular signal-regulated kinase 1/2 (ERK1/2) pathway in primary murine and human hematopoietic stem/progenitor cells stimulated by IL-3 and GM-CSF were studied. Our results demonstrated that IL-3 and GM-CSF stimulation induced increased inositol 1,4,5-trisphosphate (IP(3) ) levels and Ca(i)(2+) release in murine and human hematopoietic stem/progenitor cells. In addition, Ca(i)(2+) signaling inhibitors, such as inositol 1,4,5-trisphosphate receptor antagonist (2-APB), PKC inhibitor (GF109203), and CaMKII inhibitor (KN-62), blocked phosphorylation of MEK activated by IL-3 and GM-CSF, suggesting the participation of Ca(2+) -dependent kinases in MEK activation. In addition, we identify phospholipase Cγ2 (PLCγ2) as a PLCγ responsible for the induction of Ca(2+) release by IL-3 and GM-CSF in hematopoietic stem/progenitor cells. Furthermore, the PLCγ inhibitor U73122 significantly reduced the numbers of granulocyte-macrophage colony-forming units after cytokine stimulation. Similar results were obtained in both murine and human hematopoietic stem/progenitor cells. Taken together, these data indicate a role for PLCγ2 and Ca(2+) signaling through the modulation of MEK in both murine and human hematopoietic stem/progenitor cells.
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Affiliation(s)
- Carlos M M P Leon
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
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46
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Malovini A, Illario M, Iaccarino G, Villa F, Ferrario A, Roncarati R, Anselmi CV, Novelli V, Cipolletta E, Leggiero E, Orro A, Rusciano MR, Milanesi L, Maione AS, Condorelli G, Bellazzi R, Puca AA. Association study on long-living individuals from Southern Italy identifies rs10491334 in the CAMKIV gene that regulates survival proteins. Rejuvenation Res 2011; 14:283-91. [PMID: 21612516 DOI: 10.1089/rej.2010.1114] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Long-living individuals (LLIs) are used to study exceptional longevity. A number of genetic variants have been found associated in LLIs to date, but further identification of variants would improve knowledge on the mechanisms regulating the rate of aging. Therefore, we performed a genome-wide association study on 410 LLIs and 553 young control individuals with a 317K single-nucleotide polymorphism (SNP) chip to identify novel traits associated with aging. Among the top (p < 1 × 10(-4)) SNPs initially identified, we found rs10491334 (CAMKIV) (odds ratio [OR] = 0.55; 95% confidence interval [CI] 0.42-0.73; p = 2.88 × 10(-5)), a variant previously reported associated with diastolic blood pressure, associated also in a replication set of 116 LLIs and 160 controls (OR = 0.54; 95% CI 0.32-0.90; p = 9 × 10(-3)). Furthermore, in vitro analysis established that calcium/calmodulin-dependent protein kinase IV (CAMKIV) activates the survival proteins AKT, SIRT1, and FOXO3A, and we found that homozygous carriers of rs10491334 have a significant reduction in CAMKIV expression. This, together with the observed reduction in minor-allele carriers among centenarians, points to a detrimental role for the SNP. In conclusion, prolongevity genes are activated by CAMKIV, the levels of which are influenced by rs10491334, a SNP associated with human longevity.
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Affiliation(s)
- Alberto Malovini
- Dipartimento di Informatica e Sistemistica, Università degli Studi di Pavia, Pavia, Italy
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47
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Zhang X, Guo L, Collage RD, Stripay JL, Tsung A, Lee JS, Rosengart MR. Calcium/calmodulin-dependent protein kinase (CaMK) Ialpha mediates the macrophage inflammatory response to sepsis. J Leukoc Biol 2011; 90:249-61. [PMID: 21372190 DOI: 10.1189/jlb.0510286] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Dysregulated Ca(2+) handling is prevalent during sepsis and postulated to perpetuate the aberrant inflammation underlying subsequent organ dysfunction and death. The signal transduction cascades mediating these processes are unknown. Here, we identify that CaMKIα mediates the Mϕ response to LPS in vitro and the inflammation and organ dysfunction of sepsis in vivo. We show that LPS induced active pThr(177)-CaMKIα in RAW 264.7 cells and murine peritoneal Mϕ, which if inhibited biochemically with STO609 (CaMKK inhibitor) or by RNAi, reduces LPS-induced production of IL-10. Transfection of constitutively active CaMKIα (CaMKI293), but not a kinase-deficient mutant (CaMKI293(K49A)), induces IL-10 release. This production of IL-10 is mediated by CaMKIα-dependent regulation of p38 MAPK activation. CaMKIα activity also mediates the cellular release of HMGB1 by colocalizing with and regulating the packaging of HMGB1 into secretory lysosomes. During endotoxemia, mice receiving in vivo CaMKIα(RNAi) display reduced systemic concentrations of IL-10 and HMGB1 in comparison with mice receiving NT(RNAi). These data support the biological relevance of CaMKIα-dependent IL-10 production and HMGB1 secretion. In a CLP model of sepsis, CaMKIα(RNAi) mice display reduced systemic concentrations of IL-10, IL-6, TNF-α, and HMGB1 in comparison with NT(RNAi) mice, which correlate with reductions in the development of renal dysfunction. These data support that CaMKIα signaling is integral to the Mϕ responding to LPS and may also be operant in vivo in regulating the inflammation and organ dysfunction consequent to sepsis.
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Affiliation(s)
- Xianghong Zhang
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
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48
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Teng EC, Todd LR, Ribar TJ, Lento W, Dimascio L, Means AR, Sankar U. Gfer inhibits Jab1-mediated degradation of p27kip1 to restrict proliferation of hematopoietic stem cells. Mol Biol Cell 2011; 22:1312-20. [PMID: 21346186 PMCID: PMC3078070 DOI: 10.1091/mbc.e10-08-0723] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Genes that promote hematopoietic stem cell (HSC) quiescence play important roles in the maintenance of their function. Here we show a novel role for the evolutionarily conserved flavin adenine dinucleotide (FAD)-dependent sulfhydryl oxidase, growth factor erv1-like (Gfer) in the restriction of HSC proliferation through its inhibition of Jab1-mediated turnover of p27kip1. Growth factor erv1-like (Gfer) is an evolutionarily conserved sulfhydryl oxidase that is enriched in embryonic and adult stem cells and plays an essential prosurvival role in pluripotent embryonic stem cells. Here we show that knockdown (KD) of Gfer in hematopoietic stem cells (HSCs) compromises their in vivo engraftment potential and triggers a hyper-proliferative response that leads to their exhaustion. KD of Gfer in HSCs does not elicit a significant alteration of mitochondrial morphology or loss of cell viability. However, these cells possess significantly reduced levels of the cyclin-dependent kinase inhibitor p27kip1. In contrast, overexpression of Gfer in HSCs results in significantly elevated total and nuclear p27kip1. KD of Gfer results in enhanced binding of p27kip1 to its inhibitor, the COP9 signalosome subunit jun activation-domain binding protein 1 (Jab1), leading to its down-regulation. Conversely, overexpression of Gfer results in its enhanced binding to Jab1 and inhibition of the Jab1-p27kip1 interaction. Furthermore, normalization of p27kip1 in Gfer-KD HSCs rescues their in vitro proliferation deficits. Taken together, our data demonstrate the presence of a novel Gfer-Jab1-p27kip1 pathway in HSCs that functions to restrict abnormal proliferation.
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Affiliation(s)
- Ellen C Teng
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27707, USA
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Rosenberg S, Zhang H, Zhang J. FADD deficiency impairs early hematopoiesis in the bone marrow. THE JOURNAL OF IMMUNOLOGY 2010; 186:203-13. [PMID: 21115735 DOI: 10.4049/jimmunol.1000648] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Signal transduction mediated by Fas-associated death domain protein (FADD) represents a paradigm of coregulation of apoptosis and cellular proliferation. During apoptotic signaling induced by death receptors including Fas, FADD is required for the recruitment and activation of caspase 8. In addition, a death receptor-independent function of FADD is essential for embryogenesis. In previous studies, FADD deficiency in embryonic stem cells resulted in a complete lack of B cells and dramatically reduced T cell numbers, as shown by Rag1(-/-) blastocyst complementation assays. However, T-specific FADD-deficient mice contained normal numbers of thymocytes and slightly reduced peripheral T cell numbers, whereas B cell-specific deletion of FADD led to increased peripheral B cell numbers. It remains undetermined what impact an FADD deficiency has on hematopoietic stem cells and progenitors. The current study analyzed the effect of simultaneous deletion of FADD in multiple cell types, including bone marrow cells, by using the IFN-inducible Mx1-cre transgene. The resulting FADD mutant mice did not develop lymphoproliferation diseases, unlike Fas-deficient mice. Instead, a time-dependent depletion of peripheral FADD-deficient lymphocytes was observed. In the bone marrow, a lack of FADD led to a dramatic decrease in the hematopoietic stem cells and progenitor-enriched population. Furthermore, FADD-deficient bone marrow cells were defective in their ability to generate lymphoid, myeloid, and erythroid cells. Thus, the results revealed a temporal requirement for FADD. Although dispensable during lymphopoiesis post lineage commitment, FADD plays a critical role in early hematopoietic stages in the bone marrow.
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Affiliation(s)
- Stephen Rosenberg
- Department of Microbiology and Immunology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
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50
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Todd LR, Damin MN, Gomathinayagam R, Horn SR, Means AR, Sankar U. Growth factor erv1-like modulates Drp1 to preserve mitochondrial dynamics and function in mouse embryonic stem cells. Mol Biol Cell 2010; 6:821-2. [PMID: 20147447 PMCID: PMC2847526 DOI: 10.1091/mbc.e09-11-0937] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The relationship of mitochondrial dynamics and function to pluripotency are rather poorly understood aspects of stem cell biology. Here we show that growth factor erv1-like (Gfer) is involved in preserving mouse embryonic stem cell (ESC) mitochondrial morphology and function. Knockdown (KD) of Gfer in ESCs leads to decreased pluripotency marker expression, embryoid body (EB) formation, cell survival, and loss of mitochondrial function. Mitochondria in Gfer-KD ESCs undergo excessive fragmentation and mitophagy, whereas those in ESCs overexpressing Gfer appear elongated. Levels of the mitochondrial fission GTPase dynamin-related protein 1 (Drp1) are highly elevated in Gfer-KD ESCs and decreased in Gfer-overexpressing cells. Treatment with a specific inhibitor of Drp1 rescues mitochondrial function and apoptosis, whereas expression of Drp1-dominant negative resulted in the restoration of pluripotency marker expression in Gfer-KD ESCs. Altogether, our data reveal a novel prosurvival role for Gfer in maintaining mitochondrial fission-fusion dynamics in pluripotent ESCs.
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Affiliation(s)
- Lance R Todd
- James Graham Brown Cancer Center, University of Louisville, Owensboro, KY 42303, USA
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