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Hanaki S, Habara M, Tomiyasu H, Sato Y, Miki Y, Masaki T, Shibutani S, Shimada M. NFAT activation by FKBP52 promotes cancer cell proliferation by suppressing p53. Life Sci Alliance 2024; 7:e202302426. [PMID: 38803221 PMCID: PMC11109481 DOI: 10.26508/lsa.202302426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 05/07/2024] [Accepted: 05/07/2024] [Indexed: 05/29/2024] Open
Abstract
FK506-binding protein 52 (FKBP52) is a member of the FKBP family of proline isomerases. FKBP52 is up-regulated in various cancers and functions as a positive regulator of steroid hormone receptors. Depletion of FKBP52 is known to inhibit cell proliferation; however, the detailed mechanism remains poorly understood. In this study, we found that FKBP52 depletion decreased MDM2 transcription, leading to stabilization of p53, and suppressed cell proliferation. We identified NFATc1 and NFATc3 as transcription factors that regulate MDM2 We also found that FKBP52 associated with NFATc3 and facilitated its nuclear translocation. In addition, calcineurin, a well-known Ca2+ phosphatase essential for activation of NFAT, plays a role in MDM2 transcription. Supporting this notion, MDM2 expression was found to be regulated by intracellular Ca2+ Taken together, these findings reveal a new role of FKBP52 in promoting cell proliferation via the NFAT-MDM2-p53 axis, and indicate that inhibition of FKBP52 could be a new therapeutic tool to activate p53 and inhibit cell proliferation.
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Affiliation(s)
- Shunsuke Hanaki
- https://ror.org/03cxys317 Department of Veterinary Biochemistry, Yamaguchi University, Yamaguchi, Japan
| | - Makoto Habara
- https://ror.org/03cxys317 Department of Veterinary Biochemistry, Yamaguchi University, Yamaguchi, Japan
| | - Haruki Tomiyasu
- https://ror.org/03cxys317 Department of Veterinary Biochemistry, Yamaguchi University, Yamaguchi, Japan
| | - Yuki Sato
- https://ror.org/03cxys317 Department of Veterinary Biochemistry, Yamaguchi University, Yamaguchi, Japan
| | - Yosei Miki
- https://ror.org/03cxys317 Department of Veterinary Biochemistry, Yamaguchi University, Yamaguchi, Japan
| | - Takahiro Masaki
- https://ror.org/03cxys317 Department of Veterinary Biochemistry, Yamaguchi University, Yamaguchi, Japan
| | - Shusaku Shibutani
- https://ror.org/03cxys317 Department of Veterinary Hygiene, Yamaguchi University, Yamaguchi, Japan
| | - Midori Shimada
- https://ror.org/03cxys317 Department of Veterinary Biochemistry, Yamaguchi University, Yamaguchi, Japan
- https://ror.org/04chrp450 Department of Molecular Biology, Nagoya University, Graduate School of Medicine, Nagoya, Japan
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2
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Zhu S, Chen W, Masson A, Li YP. Cell signaling and transcriptional regulation of osteoblast lineage commitment, differentiation, bone formation, and homeostasis. Cell Discov 2024; 10:71. [PMID: 38956429 PMCID: PMC11219878 DOI: 10.1038/s41421-024-00689-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 05/04/2024] [Indexed: 07/04/2024] Open
Abstract
The initiation of osteogenesis primarily occurs as mesenchymal stem cells undergo differentiation into osteoblasts. This differentiation process plays a crucial role in bone formation and homeostasis and is regulated by two intricate processes: cell signal transduction and transcriptional gene expression. Various essential cell signaling pathways, including Wnt, BMP, TGF-β, Hedgehog, PTH, FGF, Ephrin, Notch, Hippo, and Piezo1/2, play a critical role in facilitating osteoblast differentiation, bone formation, and bone homeostasis. Key transcriptional factors in this differentiation process include Runx2, Cbfβ, Runx1, Osterix, ATF4, SATB2, and TAZ/YAP. Furthermore, a diverse array of epigenetic factors also plays critical roles in osteoblast differentiation, bone formation, and homeostasis at the transcriptional level. This review provides an overview of the latest developments and current comprehension concerning the pathways of cell signaling, regulation of hormones, and transcriptional regulation of genes involved in the commitment and differentiation of osteoblast lineage, as well as in bone formation and maintenance of homeostasis. The paper also reviews epigenetic regulation of osteoblast differentiation via mechanisms, such as histone and DNA modifications. Additionally, we summarize the latest developments in osteoblast biology spurred by recent advancements in various modern technologies and bioinformatics. By synthesizing these insights into a comprehensive understanding of osteoblast differentiation, this review provides further clarification of the mechanisms underlying osteoblast lineage commitment, differentiation, and bone formation, and highlights potential new therapeutic applications for the treatment of bone diseases.
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Affiliation(s)
- Siyu Zhu
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, LA, USA
| | - Wei Chen
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, LA, USA.
| | - Alasdair Masson
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, LA, USA
| | - Yi-Ping Li
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, LA, USA.
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3
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Mackiewicz J, Lisek M, Boczek T. Targeting CaN/NFAT in Alzheimer's brain degeneration. Front Immunol 2023; 14:1281882. [PMID: 38077352 PMCID: PMC10701682 DOI: 10.3389/fimmu.2023.1281882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/06/2023] [Indexed: 12/18/2023] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder characterized by a progressive loss of cognitive functions. While the exact causes of this debilitating disorder remain elusive, numerous investigations have characterized its two core pathologies: the presence of β-amyloid plaques and tau tangles. Additionally, multiple studies of postmortem brain tissue, as well as results from AD preclinical models, have consistently demonstrated the presence of a sustained inflammatory response. As the persistent immune response is associated with neurodegeneration, it became clear that it may also exacerbate other AD pathologies, providing a link between the initial deposition of β-amyloid plaques and the later development of neurofibrillary tangles. Initially discovered in T cells, the nuclear factor of activated T-cells (NFAT) is one of the main transcription factors driving the expression of inflammatory genes and thus regulating immune responses. NFAT-dependent production of inflammatory mediators is controlled by Ca2+-dependent protein phosphatase calcineurin (CaN), which dephosphorylates NFAT and promotes its transcriptional activity. A substantial body of evidence has demonstrated that aberrant CaN/NFAT signaling is linked to several pathologies observed in AD, including neuronal apoptosis, synaptic deficits, and glia activation. In view of this, the role of NFAT isoforms in AD has been linked to disease progression at different stages, some of which are paralleled to diminished cognitive status. The use of classical inhibitors of CaN/NFAT signaling, such as tacrolimus or cyclosporine, or adeno-associated viruses to specifically inhibit astrocytic NFAT activation, has alleviated some symptoms of AD by diminishing β-amyloid neurotoxicity and neuroinflammation. In this article, we discuss the recent findings related to the contribution of CaN/NFAT signaling to the progression of AD and highlight the possible benefits of targeting this pathway in AD treatment.
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Affiliation(s)
| | | | - Tomasz Boczek
- Department of Molecular Neurochemistry, Medical University of Lodz, Lodz, Poland
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Dong X, Hong H, Cui Z. Function of GSK‑3 signaling in spinal cord injury (Review). Exp Ther Med 2023; 26:541. [PMID: 37869638 PMCID: PMC10587879 DOI: 10.3892/etm.2023.12240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 08/10/2023] [Indexed: 10/24/2023] Open
Abstract
Spinal cord injury (SCI) is a major social problem with a heavy burden on patient physiology and psychology. Glial scar formation and irreversible neuron loss are the two key points during SCI progression. During the acute phase of spinal cord injury, glial scars form, limiting the progression of inflammation. However, in the subacute or chronic phase, glial scarring inhibits axon regeneration. Following spinal cord injury, irreversible loss of neurons leads to further aggravation of spinal cord injury. Several therapies have been developed to improve either glial scar or neuron loss; however, few therapies reach the stage of clinical trials and there are no mainstream therapies for SCI. Exploring the key mechanism of SCI is crucial for finding further treatments. Glycogen synthase kinase-3 (GSK-3) is a widely expressed kinase with important physiological and pathophysiological functions in vivo. Dysfunction of the GSK-3 signaling pathway during SCI has been widely discussed for controlling neurite growth in vitro and in vivo, improving the proliferation and neuronal differentiation of endogenous neural stem cells and functional recovery from spinal cord injury. SCI can decrease the phosphorylated (p)/total (t)-GSK-3β ratio, which leads to an increase in apoptosis, whereas treatment with GSK-3 inhibitors can promote neurogenesis. In addition, several therapies for the treatment of SCI involve signaling pathways associated with GSK-3. Furthermore, signaling pathways associated with GSK-3 also participate in the pathological process of neuropathic pain that remains following SCI. The present review summarized the roles of GSK-3 signaling in SCI to aid in the understanding of GSK-3 signaling during the pathological processes of SCI and to provide evidence for the development of comprehensive treatments.
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Affiliation(s)
- Xiong Dong
- Department of Spinal Surgery, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Hongxiang Hong
- Department of Spinal Surgery, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Zhiming Cui
- Department of Spinal Surgery, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
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5
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Gupta S, Kumar A, Tamuli R. CRZ1 transcription factor is involved in cell survival, stress tolerance, and virulence in fungi. J Biosci 2022. [DOI: 10.1007/s12038-022-00294-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Cao J, Zhou MX, Chen X, Sun M, Wei C, Peng Q, Cheng Z, Sun W, Wang H. Sec-O-Glucosylhamaudol Inhibits RANKL-Induced Osteoclastogenesis by Repressing 5-LO and AKT/GSK3β Signaling. Front Immunol 2022; 13:880988. [PMID: 35558084 PMCID: PMC9087042 DOI: 10.3389/fimmu.2022.880988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 03/31/2022] [Indexed: 12/01/2022] Open
Abstract
Sec-O-glucosylhamaudol (SOG), an active flavonoid compound derived from the root of Saposhnikovia divaricata (Turcz. ex Ledeb.) Schischk., exhibits analgesic, anti-inflammatory, and high 5-lipoxygenase (5-LO) inhibitory effects. However, its effect on osteoclastogenesis was unclear. We demonstrated that SOG markedly attenuated RANKL-induced osteoclast formation, F-actin ring formation, and mineral resorption by reducing the induction of key transcription factors NFATc1, c-Fos, and their target genes such as TRAP, CTSK, and DC-STAMP during osteoclastogenesis. Western blotting showed that SOG significantly inhibited the phosphorylation of AKT and GSK3β at the middle–late stage of osteoclastogenesis without altering calcineurin catalytic subunit protein phosphatase-2β-Aα expression. Moreover, GSK3β inhibitor SB415286 partially reversed SOG-induced inhibition of osteoclastogenesis, suggesting that SOG inhibits RANKL-induced osteoclastogenesis by activating GSK3β, at least in part. 5-LO gene silencing by small interfering RNA in mouse bone marrow macrophages markedly reduced RANKL-induced osteoclastogenesis by inhibiting NFATc1. However, it did not affect the phosphorylation of AKT or GSK3β, indicating that SOG exerts its inhibitory effects on osteoclastogenesis by suppressing both the independent 5-LO pathway and AKT-mediated GSK3β inactivation. In support of this, SOG significantly improved bone destruction in a lipopolysaccharide-induced mouse model of bone loss. Taken together, these results suggest a potential therapeutic effect for SOG on osteoclast-related bone lysis disease.
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Affiliation(s)
- Jinjin Cao
- Putuo People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Ming-Xue Zhou
- Department of Neurology, Ruikang Hospital of Guangxi Traditional Chinese Medicine (TCM) University, Nanning, China
| | - Xinyan Chen
- Putuo People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Menglu Sun
- Putuo People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Congmin Wei
- Putuo People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Qisheng Peng
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun, China
| | - Zhou Cheng
- Putuo People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Wanchun Sun
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun, China
| | - Hongbing Wang
- Putuo People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
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7
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Cahill KM, Gartia MR, Sahu S, Bergeron SR, Heffernan LM, Paulsen DB, Penn AL, Noël A. In utero exposure to electronic-cigarette aerosols decreases lung fibrillar collagen content, increases Newtonian resistance and induces sex-specific molecular signatures in neonatal mice. Toxicol Res 2022; 38:205-224. [PMID: 35415078 PMCID: PMC8960495 DOI: 10.1007/s43188-021-00103-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/04/2021] [Accepted: 08/25/2021] [Indexed: 12/14/2022] Open
Abstract
Approximately 7% of pregnant women in the United States use electronic-cigarette (e-cig) devices during pregnancy. There is, however, no scientific evidence to support e-cig use as being 'safe' during pregnancy. Little is known about the effects of fetal exposures to e-cig aerosols on lung alveologenesis. In the present study, we tested the hypothesis that in utero exposure to e-cig aerosol impairs lung alveologenesis and pulmonary function in neonates. Pregnant BALB/c mice were exposed 2 h a day for 20 consecutive days during gestation to either filtered air or cinnamon-flavored e-cig aerosol (36 mg/mL of nicotine). Lung tissue was collected in offspring during lung alveologenesis on postnatal day (PND) 5 and PND11. Lung function was measured at PND11. Exposure to e-cig aerosol in utero led to a significant decrease in body weights at birth which was sustained through PND5. At PND5, in utero e-cig exposures dysregulated genes related to Wnt signaling and epigenetic modifications in both females (~ 120 genes) and males (40 genes). These alterations were accompanied by reduced lung fibrillar collagen content at PND5-a time point when collagen content is close to its peak to support alveoli formation. In utero exposure to e-cig aerosol also increased the Newtonian resistance of offspring at PND11, suggesting a narrowing of the conducting airways. At PND11, in females, transcriptomic dysregulation associated with epigenetic alterations was sustained (17 genes), while WNT signaling dysregulation was largely resolved (10 genes). In males, at PND11, the expression of only 4 genes associated with epigenetics was dysregulated, while 16 Wnt related-genes were altered. These data demonstrate that in utero exposures to cinnamon-flavored e-cig aerosols alter lung structure and function and induce sex-specific molecular signatures during lung alveologenesis in neonatal mice. This may reflect epigenetic programming affecting lung disease development later in life.
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Affiliation(s)
- Kerin M. Cahill
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Skip Bertman Dr., Baton Rouge, LA 70803 USA
| | - Manas R. Gartia
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803 USA
| | - Sushant Sahu
- Department of Chemistry, University of Louisiana at Lafayette, Lafayette, LA 70504 USA
| | - Sarah R. Bergeron
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Skip Bertman Dr., Baton Rouge, LA 70803 USA
| | - Linda M. Heffernan
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Skip Bertman Dr., Baton Rouge, LA 70803 USA
| | - Daniel B. Paulsen
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803 USA
| | - Arthur L. Penn
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Skip Bertman Dr., Baton Rouge, LA 70803 USA
| | - Alexandra Noël
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Skip Bertman Dr., Baton Rouge, LA 70803 USA
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8
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Dong M, Zeng J, Yang C, Qiu Y, Wang X. Asiatic Acid Attenuates Osteoporotic Bone Loss in Ovariectomized Mice Through Inhibiting NF-kappaB/MAPK/ Protein Kinase B Signaling Pathway. Front Pharmacol 2022; 13:829741. [PMID: 35211021 PMCID: PMC8861314 DOI: 10.3389/fphar.2022.829741] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/17/2022] [Indexed: 02/04/2023] Open
Abstract
Osteoporosis is a condition associated with osteolytic bone disease that is primarily characterized by inordinate osteoclast activation. Protein kinase B (Akt) pathways activated by receptor activator of nuclear factor kappa-B ligand (RANKL) are essential for osteoclastogenesis. Asiatic acid (AA) is a natural pentacyclic triterpenoid compound extracted from a traditional Chinese herb that exhibits a wide range of biological activities. AA has been found to alleviate the hypertrophic and fibrotic phenotype of chondrocytes via the Akt signaling pathway. In this study, we investigated whether AA alleviated bone loss by inhibiting the Akt signaling pathway during osteoclastogenesis and its effect on osteoblasts. The effect of AA cytotoxicity on mouse bone marrow-derived macrophages/monocytes (BMMs) was evaluated in vitro using a Cell Counting Kit-8 assay. The effects of AA on osteoclast differentiation and function were detected using tartrate-resistant acid phosphatase (TRAP) staining and a pit formation assay. A Western blot and qRT-PCR were conducted to evaluate the expression of osteoclast-specific genes and protein signaling molecules. In addition, alkaline phosphatase and alizarin red staining were performed to assess osteoblast differentiation and mineralization. The bone protective effect of AA was investigated in vivo using ovariectomized mice. we found that AA could dose-dependently inhibit RANKL-induced osteoclastogenesis. Moreover, the pit formation assay revealed that osteoclast function was suppressed by treatment with AA. Moreover, the expression of osteoclast-specific genes was found to be substantially decreased during osteoclastogenesis. Analysis of the molecular mechanisms showed that AA could inhibit NF-kappaB/MAPK/Akt signaling pathway, as well as the downstream factors of NFATc1 in the osteoclast signaling pathway activated by RANKL. However, AA did not significantly promote osteoblast differentiation and mineralization. The in vivo experiments suggested that AA could alleviate ovariectomy-induced bone loss in ovariectomized mice. Our results demonstrate that AA can inhibit osteoclastogenesis and prevent ovariectomy-induced bone loss by inhibiting the NF-kappaB/MAPK/Akt signaling pathway. The discovery of the new molecular mechanism that AA inhibits osteoclastogenesis provides essential evidence to support the use of AA as a potential drug for the treatment of osteoclast-related diseases.
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Affiliation(s)
- Mingming Dong
- Department of Spine Surgery, The Second Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Jican Zeng
- Department of Spine Surgery, The Second Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Chenyu Yang
- Department of Spine Surgery, The Second Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Yisen Qiu
- Department of Spine Surgery, The Second Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Xinjia Wang
- Department of Spine Surgery, The Second Affiliated Hospital, Shantou University Medical College, Shantou, China
- Department of Orthopedic, Affiliated Cancer Hospital, Shantou University Medical College, Shantou, China
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9
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Vainio L, Taponen S, Kinnunen SM, Halmetoja E, Szabo Z, Alakoski T, Ulvila J, Junttila J, Lakkisto P, Magga J, Kerkelä R. GSK3β Serine 389 Phosphorylation Modulates Cardiomyocyte Hypertrophy and Ischemic Injury. Int J Mol Sci 2021; 22:13586. [PMID: 34948382 PMCID: PMC8707850 DOI: 10.3390/ijms222413586] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/03/2021] [Accepted: 12/15/2021] [Indexed: 11/17/2022] Open
Abstract
Prior studies show that glycogen synthase kinase 3β (GSK3β) contributes to cardiac ischemic injury and cardiac hypertrophy. GSK3β is constitutionally active and phosphorylation of GSK3β at serine 9 (S9) inactivates the kinase and promotes cellular growth. GSK3β is also phosphorylated at serine 389 (S389), but the significance of this phosphorylation in the heart is not known. We analyzed GSK3β S389 phosphorylation in diseased hearts and utilized overexpression of GSK3β carrying ser→ala mutations at S9 (S9A) and S389 (S389A) to study the biological function of constitutively active GSK3β in primary cardiomyocytes. We found that phosphorylation of GSK3β at S389 was increased in left ventricular samples from patients with dilated cardiomyopathy and ischemic cardiomyopathy, and in hearts of mice subjected to thoracic aortic constriction. Overexpression of either GSK3β S9A or S389A reduced the viability of cardiomyocytes subjected to hypoxia-reoxygenation. Overexpression of double GSK3β mutant (S9A/S389A) further reduced cardiomyocyte viability. Determination of protein synthesis showed that overexpression of GSK3β S389A or GSK3β S9A/S389A increased both basal and agonist-induced cardiomyocyte growth. Mechanistically, GSK3β S389A mutation was associated with activation of mTOR complex 1 signaling. In conclusion, our data suggest that phosphorylation of GSK3β at S389 enhances cardiomyocyte survival and protects from cardiomyocyte hypertrophy.
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Affiliation(s)
- Laura Vainio
- Research Unit of Biomedicine, Department of Pharmacology and Toxicology, University of Oulu, Oulu 90220, Finland; (L.V.); (S.T.); (S.M.K.); (E.H.); (Z.S.); (T.A.); (J.U.); (J.M.)
- Biocenter Oulu, University of Oulu, Oulu 90220, Finland;
| | - Saija Taponen
- Research Unit of Biomedicine, Department of Pharmacology and Toxicology, University of Oulu, Oulu 90220, Finland; (L.V.); (S.T.); (S.M.K.); (E.H.); (Z.S.); (T.A.); (J.U.); (J.M.)
- Biocenter Oulu, University of Oulu, Oulu 90220, Finland;
| | - Sini M. Kinnunen
- Research Unit of Biomedicine, Department of Pharmacology and Toxicology, University of Oulu, Oulu 90220, Finland; (L.V.); (S.T.); (S.M.K.); (E.H.); (Z.S.); (T.A.); (J.U.); (J.M.)
- Drug Research Program, Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Helsinki 00014, Finland
| | - Eveliina Halmetoja
- Research Unit of Biomedicine, Department of Pharmacology and Toxicology, University of Oulu, Oulu 90220, Finland; (L.V.); (S.T.); (S.M.K.); (E.H.); (Z.S.); (T.A.); (J.U.); (J.M.)
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu 90220, Finland
| | - Zoltan Szabo
- Research Unit of Biomedicine, Department of Pharmacology and Toxicology, University of Oulu, Oulu 90220, Finland; (L.V.); (S.T.); (S.M.K.); (E.H.); (Z.S.); (T.A.); (J.U.); (J.M.)
| | - Tarja Alakoski
- Research Unit of Biomedicine, Department of Pharmacology and Toxicology, University of Oulu, Oulu 90220, Finland; (L.V.); (S.T.); (S.M.K.); (E.H.); (Z.S.); (T.A.); (J.U.); (J.M.)
- Biocenter Oulu, University of Oulu, Oulu 90220, Finland;
| | - Johanna Ulvila
- Research Unit of Biomedicine, Department of Pharmacology and Toxicology, University of Oulu, Oulu 90220, Finland; (L.V.); (S.T.); (S.M.K.); (E.H.); (Z.S.); (T.A.); (J.U.); (J.M.)
| | - Juhani Junttila
- Biocenter Oulu, University of Oulu, Oulu 90220, Finland;
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu 90220, Finland
- Research Unit of Internal Medicine, Division of Cardiology, Oulu University Hospital and University of Oulu, Oulu 90220, Finland
| | - Päivi Lakkisto
- Unit of Cardiovascular Research, Minerva Institute for Medical Research, Helsinki 00014, Finland;
- Department of Clinical Chemistry and Hematology, University of Helsinki and Helsinki University Hospital, Helsinki 00014, Finland
| | - Johanna Magga
- Research Unit of Biomedicine, Department of Pharmacology and Toxicology, University of Oulu, Oulu 90220, Finland; (L.V.); (S.T.); (S.M.K.); (E.H.); (Z.S.); (T.A.); (J.U.); (J.M.)
- Biocenter Oulu, University of Oulu, Oulu 90220, Finland;
| | - Risto Kerkelä
- Research Unit of Biomedicine, Department of Pharmacology and Toxicology, University of Oulu, Oulu 90220, Finland; (L.V.); (S.T.); (S.M.K.); (E.H.); (Z.S.); (T.A.); (J.U.); (J.M.)
- Biocenter Oulu, University of Oulu, Oulu 90220, Finland;
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu 90220, Finland
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Steele L, Mannion AJ, Shaw G, Maclennan KA, Cook GP, Rudd CE, Taylor A. Non-redundant activity of GSK-3α and GSK-3β in T cell-mediated tumor rejection. iScience 2021; 24:102555. [PMID: 34142056 PMCID: PMC8188550 DOI: 10.1016/j.isci.2021.102555] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/13/2021] [Accepted: 05/14/2021] [Indexed: 12/21/2022] Open
Abstract
Glycogen synthase kinase-3 (GSK-3) is a positive regulator of PD-1 expression in CD8+ T cells and GSK-3 inhibition enhances T cell function and is effective in the control of tumor growth. GSK-3 has two co-expressed isoforms, GSK-3α and GSK-3β. Using conditional gene targeting, we demonstrate that both isoforms contribute to T cell function to different degrees. Gsk3b-/- mice suppressed tumor growth to the same degree as Gsk3a/b-/- mice, whereas Gsk3a-/- mice behaved similarly to wild-type, revealing an important role for GSK-3β in regulating T cell-mediated anti-tumor immunity. The individual GSK-3α and β isoforms have differential effects on PD-1, IFNγ, and granzyme B expression and operate in synergy to control PD-1 expression and the infiltration of tumors with CD4 and CD8 T cells. Our data reveal a complex interplay of the GSK-3 isoforms in the control of tumor immunity and highlight non-redundant activity of GSK-3 isoforms in T cells, with implications for immunotherapy.
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Affiliation(s)
- Lynette Steele
- Leeds Institute of Medical Research, University of Leeds, School of Medicine, Wellcome Trust Brenner Building, St James's University Hospital, Leeds LS9 7TF, UK
| | - Aarren J. Mannion
- Leeds Institute of Medical Research, University of Leeds, School of Medicine, Wellcome Trust Brenner Building, St James's University Hospital, Leeds LS9 7TF, UK
- Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | - Gary Shaw
- Leeds Institute of Medical Research, University of Leeds, School of Medicine, Wellcome Trust Brenner Building, St James's University Hospital, Leeds LS9 7TF, UK
| | - Kenneth A. Maclennan
- Leeds Institute of Medical Research, University of Leeds, School of Medicine, Wellcome Trust Brenner Building, St James's University Hospital, Leeds LS9 7TF, UK
| | - Graham P. Cook
- Leeds Institute of Medical Research, University of Leeds, School of Medicine, Wellcome Trust Brenner Building, St James's University Hospital, Leeds LS9 7TF, UK
| | - Christopher E. Rudd
- Division of Immunology-Oncology Research Center, Maisonneuve-Rosemont Hospital, Montreal, Quebec H1T 2M4, Canada
- Département de Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
- Division of Experimental Medicine, Department of Medicine, McGill University Health Center, McGill University, Montreal, Quebec H4A 3J1, Canada
| | - Alison Taylor
- Leeds Institute of Medical Research, University of Leeds, School of Medicine, Wellcome Trust Brenner Building, St James's University Hospital, Leeds LS9 7TF, UK
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11
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Abstract
PURPOSE Down syndrome (DS) is caused by trisomy 21 (Ts21) and results in skeletal deficits including shortened stature, low bone mineral density, and a predisposition to early onset osteoporosis. Ts21 causes significant alterations in skeletal development, morphology of the appendicular skeleton, bone homeostasis, age-related bone loss, and bone strength. However, the genetic or cellular origins of DS skeletal phenotypes remain unclear. RECENT FINDINGS New studies reveal a sexual dimorphism in characteristics and onset of skeletal deficits that differ between DS and typically developing individuals. Age-related bone loss occurs earlier in the DS as compared to general population. Perturbations of DS skeletal quality arise from alterations in cellular and molecular pathways affected by the overexpression of trisomic genes. Sex-specific alterations occur in critical developmental pathways that disrupt bone accrual, remodeling, and homeostasis and are compounded by aging, resulting in increased risks for osteopenia, osteoporosis, and fracture in individuals with DS.
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Affiliation(s)
- Jared R Thomas
- Department of Biology, Indiana University-Purdue University Indianapolis, 723 West Michigan Street, SL 306, Indianapolis, IN, 46202-3275, USA
| | - Randall J Roper
- Department of Biology, Indiana University-Purdue University Indianapolis, 723 West Michigan Street, SL 306, Indianapolis, IN, 46202-3275, USA.
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12
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Dimou A, Syrigos KN. The Role of GSK3β in T Lymphocytes in the Tumor Microenvironment. Front Oncol 2020; 10:1221. [PMID: 32850361 PMCID: PMC7396595 DOI: 10.3389/fonc.2020.01221] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 06/15/2020] [Indexed: 12/19/2022] Open
Abstract
Immunotherapy options for patients with cancer have emerged following decades of research on immune responses against tumors. Most treatments in this category harness T cells with specificity for tumor associated antigens, neoantigens, and cancer-testis antigens. GSK3β is a serine-threonine kinase with the highest number of substrates and multifaceted roles in cell function including immune cells. Importantly, inhibitors of GSK3β are available for clinical and research use. Here, we review the possible role of GSK3β in the immune tumor microenvironment, with goal to guide future research that tests GSK3β inhibition as an immunotherapy adjunct.
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Affiliation(s)
- Anastasios Dimou
- Division of Medical Oncology, Mayo Clinic, Rochester, MN, United States
| | - Konstantinos N Syrigos
- Division of Medical Oncology, Third Department of Medicine, University of Athens, Athens, Greece
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13
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Li G, Tang X, Zhang S, Jin M, Wang M, Deng Z, Liu Z, Qian M, Shi W, Wang Z, Xie H, Li J, Liu B. SIRT7 activates quiescent hair follicle stem cells to ensure hair growth in mice. EMBO J 2020; 39:e104365. [PMID: 32696520 PMCID: PMC7507325 DOI: 10.15252/embj.2019104365] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 06/11/2020] [Accepted: 06/14/2020] [Indexed: 12/17/2022] Open
Abstract
Hair follicle stem cells (HFSCs) are maintained in a quiescent state until activated to grow, but the mechanisms that reactivate the quiescent HFSC reservoir are unclear. Here, we find that loss of Sirt7 in mice impedes hair follicle life‐cycle transition from telogen to anagen phase, resulting in delay of hair growth. Conversely, Sirt7 overexpression during telogen phase facilitated HSFC anagen entry and accelerated hair growth. Mechanistically, Sirt7 is upregulated in HFSCs during the telogen‐to‐anagen transition, and HFSC‐specific Sirt7 knockout mice (Sirt7f/f;K15‐Cre) exhibit a similar hair growth delay. At the molecular level, Sirt7 interacts with and deacetylates the transcriptional regulator Nfatc1 at K612, causing PA28γ‐dependent proteasomal degradation to terminate Nfatc1‐mediated telogen quiescence and boost anagen entry. Cyclosporin A, a potent calcineurin inhibitor, suppresses nuclear retention of Nfatc1, abrogates hair follicle cycle delay, and promotes hair growth in Sirt7−/− mice. Furthermore, Sirt7 is downregulated in aged HFSCs, and exogenous Sirt7 overexpression promotes hair growth in aged animals. These data reveal that Sirt7 activates HFSCs by destabilizing Nfatc1 to ensure hair follicle cycle initiation.
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Affiliation(s)
- Guo Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaolong Tang
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI), National Engineering Research Center for Biotechnology (Shenzhen), International Cancer Center, Shenzhen University, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Shuping Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Meiling Jin
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Ming Wang
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI), National Engineering Research Center for Biotechnology (Shenzhen), International Cancer Center, Shenzhen University, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Zhili Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Zuojun Liu
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI), National Engineering Research Center for Biotechnology (Shenzhen), International Cancer Center, Shenzhen University, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Minxian Qian
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI), National Engineering Research Center for Biotechnology (Shenzhen), International Cancer Center, Shenzhen University, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Wei Shi
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Zimei Wang
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI), National Engineering Research Center for Biotechnology (Shenzhen), International Cancer Center, Shenzhen University, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Hongfu Xie
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, Hunan, China.,Department of Dermatology, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Baohua Liu
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI), National Engineering Research Center for Biotechnology (Shenzhen), International Cancer Center, Shenzhen University, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China.,Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
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14
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Abstract
Ca2+ is a ubiquitous and dynamic second messenger molecule that is induced by many factors including receptor activation, environmental factors, and voltage, leading to pleiotropic effects on cell function including changes in migration, metabolism and transcription. As such, it is not surprising that aberrant regulation of Ca2+ signals can lead to pathological phenotypes, including cancer progression. However, given the highly context-specific nature of Ca2+-dependent changes in cell function, delineation of its role in cancer has been a challenge. Herein, we discuss the distinct roles of Ca2+ signaling within and between each type of cancer, including consideration of the potential of therapeutic strategies targeting these signaling pathways.
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Affiliation(s)
- Scott Gross
- Fels Institute for Cancer Research and Molecular Biology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Pranava Mallu
- Fels Institute for Cancer Research and Molecular Biology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Hinal Joshi
- Fels Institute for Cancer Research and Molecular Biology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Bryant Schultz
- Fels Institute for Cancer Research and Molecular Biology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Christina Go
- Fels Institute for Cancer Research and Molecular Biology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Jonathan Soboloff
- Fels Institute for Cancer Research and Molecular Biology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States; Department of Medical Genetics & Molecular Biochemistry, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States.
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15
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Whitley KC, Hamstra SI, Baranowski RW, Watson CJF, MacPherson REK, MacNeil AJ, Roy BD, Vandenboom R, Fajardo VA. GSK3 inhibition with low dose lithium supplementation augments murine muscle fatigue resistance and specific force production. Physiol Rep 2020; 8:e14517. [PMID: 32729236 PMCID: PMC7390913 DOI: 10.14814/phy2.14517] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/30/2020] [Accepted: 07/02/2020] [Indexed: 12/20/2022] Open
Abstract
Calcineurin is a Ca2+ -dependent serine/threonine phosphatase that dephosphorylates nuclear factor of activated T cells (NFAT), allowing for NFAT entry into the nucleus. In skeletal muscle, calcineurin signaling and NFAT activation increases the expression of proliferator-activated receptor-gamma coactivator 1-alpha (PGC-1α) and slow myosin heavy chain (MHC) I ultimately promoting fatigue resistance. Glycogen synthase kinase 3 (GSK3) is a serine/threonine kinase that antagonizes calcineurin by re-phosphorylating NFAT preventing its entry into the nucleus. Here, we tested whether GSK3 inhibition in vivo with low dose lithium chloride (LiCl) supplementation (10 mg kg-1 day-1 for 6 weeks) in male C57BL/6J mice would enhance muscle fatigue resistance in soleus and extensor digitorum longus (EDL) muscles by activating NFAT and augmenting PGC-1α and MHC I expression. LiCl treatment inhibited GSK3 by elevating Ser9 phosphorylation in soleus (+1.8-fold, p = .007) and EDL (+1.3-fold p = .04) muscles. This was associated with a significant reduction in NFAT phosphorylation (-50%, p = .04) and a significant increase in PGC-1α (+1.5-fold, p = .05) in the soleus but not the EDL. MHC isoform analyses in the soleus also revealed a 1.2-fold increase in MHC I (p = .04) with no change in MHC IIa. In turn, a significant enhancement in soleus muscle fatigue (p = .04), but not EDL (p = .26) was found with LiCl supplementation. Lastly, LiCl enhanced specific force production in both soleus (p < .0001) and EDL (p = .002) muscles. Altogether, our findings show the skleletal muscle contractile benefits of LiCl-mediated GSK3 inhibition in mice.
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Affiliation(s)
- Kennedy C. Whitley
- Department of KinesiologyBrock UniversitySt. CatharinesONCanada
- Centre for Bone and Muscle HealthBrock UniversitySt. CatharinesONCanada
| | - Sophie I. Hamstra
- Department of KinesiologyBrock UniversitySt. CatharinesONCanada
- Centre for Bone and Muscle HealthBrock UniversitySt. CatharinesONCanada
| | - Ryan W. Baranowski
- Department of KinesiologyBrock UniversitySt. CatharinesONCanada
- Centre for Bone and Muscle HealthBrock UniversitySt. CatharinesONCanada
| | | | | | - Adam J. MacNeil
- Department of Health SciencesBrock UniversitySt. CatharinesONCanada
| | - Brian D. Roy
- Department of KinesiologyBrock UniversitySt. CatharinesONCanada
- Centre for Bone and Muscle HealthBrock UniversitySt. CatharinesONCanada
| | - Rene Vandenboom
- Department of KinesiologyBrock UniversitySt. CatharinesONCanada
- Centre for Bone and Muscle HealthBrock UniversitySt. CatharinesONCanada
| | - Val A. Fajardo
- Department of KinesiologyBrock UniversitySt. CatharinesONCanada
- Centre for Bone and Muscle HealthBrock UniversitySt. CatharinesONCanada
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16
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Augello G, Emma MR, Cusimano A, Azzolina A, Montalto G, McCubrey JA, Cervello M. The Role of GSK-3 in Cancer Immunotherapy: GSK-3 Inhibitors as a New Frontier in Cancer Treatment. Cells 2020; 9:cells9061427. [PMID: 32526891 PMCID: PMC7348946 DOI: 10.3390/cells9061427] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/31/2020] [Accepted: 06/05/2020] [Indexed: 02/06/2023] Open
Abstract
The serine/threonine kinase glycogen synthase kinase-3 (GSK-3) was initially identified because of its key role in the regulation of glycogen synthesis. However, it is now well-established that GSK-3 performs critical functions in many cellular processes, such as apoptosis, tumor growth, cell invasion, and metastasis. Aberrant GSK-3 activity has been associated with many human diseases, including cancer, highlighting its potential therapeutic relevance as a target for anticancer therapy. Recently, newly emerging data have demonstrated the pivotal role of GSK-3 in the anticancer immune response. In the last few years, many GSK-3 inhibitors have been developed, and some are currently being tested in clinical trials. This review will discuss preclinical and initial clinical results with GSK-3β inhibitors, highlighting the potential importance of this target in cancer immunotherapy. As described in this review, GSK-3 inhibitors have been shown to have antitumor activity in a wide range of human cancer cells, and they may also contribute to promoting a more efficacious immune response against tumor target cells, thus showing a double therapeutic advantage.
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Affiliation(s)
- Giuseppa Augello
- Institute for Biomedical Research and Innovation, National Research Council (CNR), 90144 Palermo, Italy; (G.A.); (M.R.E.); (A.C.); (A.A.); (G.M.)
| | - Maria R. Emma
- Institute for Biomedical Research and Innovation, National Research Council (CNR), 90144 Palermo, Italy; (G.A.); (M.R.E.); (A.C.); (A.A.); (G.M.)
| | - Antonella Cusimano
- Institute for Biomedical Research and Innovation, National Research Council (CNR), 90144 Palermo, Italy; (G.A.); (M.R.E.); (A.C.); (A.A.); (G.M.)
| | - Antonina Azzolina
- Institute for Biomedical Research and Innovation, National Research Council (CNR), 90144 Palermo, Italy; (G.A.); (M.R.E.); (A.C.); (A.A.); (G.M.)
| | - Giuseppe Montalto
- Institute for Biomedical Research and Innovation, National Research Council (CNR), 90144 Palermo, Italy; (G.A.); (M.R.E.); (A.C.); (A.A.); (G.M.)
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, 90127 Palermo, Italy
| | - James A. McCubrey
- Department of Microbiology and Immunology, Brody School of Medicine at East Carolina University, Greenville, NC 27834, USA;
| | - Melchiorre Cervello
- Institute for Biomedical Research and Innovation, National Research Council (CNR), 90144 Palermo, Italy; (G.A.); (M.R.E.); (A.C.); (A.A.); (G.M.)
- Correspondence: ; Tel.: +39-091-6809-534
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17
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Glycogen Synthase Kinase-3β Facilitates Cytokine Production in 12-O-Tetradecanoylphorbol-13-Acetate/Ionomycin-Activated Human CD4 + T Lymphocytes. Cells 2020; 9:cells9061424. [PMID: 32521784 PMCID: PMC7348852 DOI: 10.3390/cells9061424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 12/02/2022] Open
Abstract
Cytokines are the major immune regulators secreted from activated CD4+ T lymphocytes that activate adaptive immunity to eradicate nonself cells, including pathogens, tumors, and allografts. The regulation of glycogen synthase kinase (GSK)-3β, a serine/threonine kinase, controls cytokine production by regulating transcription factors. The artificial in vitro activation of CD4+ T lymphocytes by a combination of 12-O-tetradecanoylphorbol-13-acetate and ionomycin, the so-called T/I model, led to an inducible production of cytokines, such as interferon-γ, tumor necrosis factor-α, and interleukin-2. As demonstrated by the approaches of pharmacological targeting and genetic knockdown of GSK-3β, T/I treatment effectively caused GSK-3β activation followed by GSK-3β-regulated cytokine production. In contrast, pharmacological inhibition of the proline-rich tyrosine kinase 2 and calcineurin signaling pathways blocked cytokine production, probably by deactivating GSK-3β. The blockade of GSK-3β led to the inhibition of the nuclear translocation of T-bet, a vital transcription factor of T lymphocyte cytokines. In a mouse model, treatment with the GSK-3β inhibitor 6-bromoindirubin-3’-oxime significantly inhibited T/I-induced mortality and serum cytokine levels. In summary, targeting GSK-3β effectively inhibits CD4+ T lymphocyte activation and cytokine production.
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18
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Krueger J, Rudd CE, Taylor A. Glycogen synthase 3 (GSK-3) regulation of PD-1 expression and and its therapeutic implications. Semin Immunol 2020; 42:101295. [PMID: 31604533 DOI: 10.1016/j.smim.2019.101295] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 08/01/2019] [Indexed: 12/14/2022]
Abstract
The past few years have witnessed exciting progress in the application of immune check-point blockade (ICB) for the treatment of various human cancers. ICB was first used against cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) to demonstrate durable anti-tumor responses followed by ICB against programmed cell death-1 (PD-1) or its ligand, PD-L1. Present approaches involve the use of combinations of blocking antibodies against CTLA-4, PD-1 and other inhibitory receptors (IRs) such as TIM3, TIGIT and LAG3. Despite this success, most patients are not cured by ICB therapy and there are limitations to the use of antibodies including cost, tumor penetration, the accessibility of receptors, and clearance from the cell surface as well as inflammatory and autoimmune complications. Recently, we demonstrated that the down-regulation or inhibition of glycogen synthase kinase 3 (GSK-3) down-regulates PD-1 expression in infectious diseases and cancer (Taylor et al., 2016 Immunity 44, 274-86; 2018 Cancer Research 78, 706-717; Krueger and Rudd 2018 Immunity 46, 529-531). In this Review, we outline the use of small molecule inhibitors (SMIs) that target intracellular pathways for co-receptor blockade in cancer immunotherapy.
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Affiliation(s)
- Janna Krueger
- Division of Immunology-Oncology, Research Center Maisonneuve-Rosemont Hospital, Montreal, Quebec H1T 2M4, Canada; Département de Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
| | - Christopher E Rudd
- Division of Immunology-Oncology, Research Center Maisonneuve-Rosemont Hospital, Montreal, Quebec H1T 2M4, Canada; Département de Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada.
| | - Alison Taylor
- Leeds Institute of Medical Research, University of Leeds, School of Medicine, Wellcome Trust Brenner Building, St James's University Hospital, LEEDS LS9 7TF, United Kingdom.
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19
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Ding L, Billadeau DD. Glycogen synthase kinase-3β: a novel therapeutic target for pancreatic cancer. Expert Opin Ther Targets 2020; 24:417-426. [PMID: 32178549 DOI: 10.1080/14728222.2020.1743681] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Introduction: Pancreatic ductal adenocarcinoma (PDAC) is the third leading cause of cancer death in the United States with a single-digit 5-year survival rate despite advances in understanding the genetics and biology of the disease. Glycogen synthase kinase-3α (GSK-3α) and GSK-3β are serine/threonine kinases that localize to the cytoplasm, mitochondria and nucleus. Although they are highly homologous within their kinase domains and phosphorylate an overlapping set of target proteins, genetic studies have shown that GSK-3β regulates the activity of several proteins that promote neoplastic transformation. Significantly, GSK-3β is progressively overexpressed during PDAC development where it participates in tumor progression, survival and chemoresistance. Thus, GSK-3β has become an attractive target for treating PDAC.Areas covered: This review summarizes the mechanisms regulating GSK-3β activity, including upstream translational and post-translational regulation, as well as the downstream targets and their functions in PDAC cell growth, metastasis and chemoresistance.Expert opinion: The activity of GSK-3 kinases are considered cell- and context-specific. In PDAC, oncogenic KRas drives the transcriptional expression of the GSK-3β gene, which has been shown to regulate cancer cell proliferation and survival, as well as resistance to chemotherapy. Thus, the combination of GSK-3 inhibitors with chemotherapeutic drugs could be a promising strategy for PDAC.
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Affiliation(s)
- Li Ding
- The Division of Oncology Research, Schulze Center for Novel Therapeutics, Mayo Clinic, Rochester, MN, USA
| | - Daniel D Billadeau
- The Division of Oncology Research, Schulze Center for Novel Therapeutics, Mayo Clinic, Rochester, MN, USA
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20
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Taylor A, Rudd CE. Glycogen synthase kinase 3 (GSK-3) controls T-cell motility and interactions with antigen presenting cells. BMC Res Notes 2020; 13:163. [PMID: 32188506 PMCID: PMC7079518 DOI: 10.1186/s13104-020-04971-0] [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: 09/14/2019] [Accepted: 02/24/2020] [Indexed: 12/21/2022] Open
Abstract
Objective The threonine/serine kinase glycogen synthase kinase 3 (GSK-3) targets multiple substrates in T-cells, regulating the expression of Tbet and PD-1 on T-cells. However, it has been unclear whether GSK-3 can affect the motility of T-cells and their interactions with antigen presenting cells. Results Here, we show that GSK-3 controls T-cell motility and interactions with other cells. Inhibition of GSK-3, using structurally distinct inhibitors, reduced T-cell motility in terms of distance and displacement. While SB415286 reduced the number of cell-cell contacts, the dwell times of cells that established contacts with other cells did not differ for T-cells treated with SB415286. Further, the increase in cytolytic T-cell (CTL) function in killing tumor targets was not affected by the inhibition of motility. This data shows that the inhibition of GSK-3 has differential effects on T-cell motility and CTL function where the negative effects on cell–cell interactions is overridden by the increased cytolytic potential of CTLs.
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Affiliation(s)
- Alison Taylor
- Leeds Institute of Medical Research, School of Medicine, University of Leeds, Wellcome Trust Brenner Building, St James's University Hospital, Leeds, LS9 7TF, UK. .,Cell Signalling Section, Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1Q, UK.
| | - Christopher E Rudd
- Cell Signalling Section, Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1Q, UK. .,Division of Immunology-Oncology Research Center, Maisonneuve-Rosemont Hospital, Montreal, QC, H1T 2M4, Canada. .,Département de Medicine, Université de Montréal, Montreal, QC, H3C 3J7, Canada.
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21
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Xiao D, Zhou Q, Gao Y, Cao B, Zhang Q, Zeng G, Zong S. PDK1 is important lipid kinase for RANKL-induced osteoclast formation and function via the regulation of the Akt-GSK3β-NFATc1 signaling cascade. J Cell Biochem 2020; 121:4542-4557. [PMID: 32048762 DOI: 10.1002/jcb.29677] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 01/16/2020] [Indexed: 12/17/2022]
Abstract
Perturbations in the balanced process of osteoblast-mediated bone formation and osteoclast-mediated bone resorption leading to excessive osteoclast formation and/or activity is the cause of many pathological bone conditions such as osteoporosis. The osteoclast is the only cell in the body capable of resorbing and degrading the mineralized bone matrix. Osteoclast formation from monocytic precursors is governed by the actions of two key cytokines macrophage-colony-stimulating factor and receptor activator of nuclear factor-κB ligand (RANKL). Binding of RANKL binding to receptor RANK initiates a series of downstream signaling responses leading to monocytic cell differentiation and fusion, and subsequent mature osteoclast bone resorption and survival. The phosphoinositide-3-kinase (PI3K)-protein kinase B (Akt) signaling cascade is one such pathway activated in response to RANKL. The 3-phosphoinositide-dependent protein kinase 1 (PDK1), is considered the master upstream lipid kinase of the PI3K-Akt cascade. PDK1 functions to phosphorylate and partially activate Akt, triggering the activation of downstream effectors. However, the role of PDK1 in osteoclasts has yet to be clearly defined. In this study, we specifically deleted the PDK1 gene in osteoclasts using the cathepsin-K promoter driven Cre-LoxP system. We found that the specific genetic ablation of PDK1 in osteoclasts leads to an osteoclast-poor osteopetrotic phenotype in mice. In vitro cellular assays further confirmed the impairment of osteoclast formation in response to RANKL by PDK1-deficient bone marrow macrophage (BMM) precursor cells. PDK1-deficient BMMs exhibited reduced ability to reorganize actin cytoskeleton to form a podosomal actin belt as a result of diminished capacity to fuse into giant multinucleated osteoclasts. Notably, biochemical analyses showed that PDK1 deficiency attenuated the phosphorylation of Akt and downstream effector GSK3β, and reduced induction of NFATc1. GSK3β is a reported negative regulator of NFATc1. GSK3β activity is inhibited by Akt-dependent phosphorylation. Thus, our data provide clear genetic and mechanistic insights into the important role for PDK1 in osteoclasts.
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Affiliation(s)
- Dongliang Xiao
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, Guangxi, China
| | - Quan Zhou
- Collaborative Innovation Center of Guangxi Biological Medicine, Guangxi Medical University, Nanning, Guangxi, China
| | - Yunbing Gao
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, Guangxi, China
| | - Baichuan Cao
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, Guangxi, China
| | - Qiong Zhang
- College of Public Hygiene of Guangxi Medical University, Guangxi, China
| | - Gaofeng Zeng
- College of Public Hygiene of Guangxi Medical University, Guangxi, China
| | - Shaohui Zong
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, Guangxi, China.,Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China
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22
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Small Molecule Inhibition of Glycogen Synthase Kinase-3 in Cancer Immunotherapy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1164:225-233. [PMID: 31576552 DOI: 10.1007/978-3-030-22254-3_17] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Immune checkpoint blockade (ICB) has proved successful in the immunotherapeutic treatment of various human cancers. Despite its success, most patients are still not cured while immunogenic cold cancers are still poorly responsive. There is a need for novel clinical interventions in immunotherapy, either alone or in conjunction with ICB. Here, we outline our recent discovery that the intracellular signaling kinase glycogen synthase kinase-3 (GSK-3) is a central regulator of PD-1 in T-cells. We demonstrate the application of small molecule inhibitor (SMI) approaches to down-regulate PD-1 in tumor immunotherapy. GSK-3 SMIs were found as effective as anti-PD-1 in the elimination of melanoma in mouse models. We propose the development of novel SMIs to target co-receptors for the future of immunotherapy.
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Shakhova I, Li Y, Yu F, Kaneko Y, Nakamura Y, Ohira M, Izumi H, Mae T, Varfolomeeva SR, Rumyantsev AG, Nakagawara A. PPP3CB contributes to poor prognosis through activating nuclear factor of activated T-cells signaling in neuroblastoma. Mol Carcinog 2018; 58:426-435. [PMID: 30457174 DOI: 10.1002/mc.22939] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 10/21/2018] [Accepted: 11/09/2018] [Indexed: 12/22/2022]
Abstract
We previously identified a gain-of-function mutation in PPP3CB in a neuroblastoma (NB) with MYCN amplification. Here we investigated the functional and clinical role of PPP3CB in NB. High PPP3CB expression was an independent indicator predicting poor prognosis of NB. Overexpression of wildtype or mutated PPP3CB (PPP3CBmut) promoted cell growth, but PPP3CB knockdown decreased cell growth in NB cells. Forced expressions of PPP3CB and PPP3CBmut activated NFAT2 and NFAT4 transcription factors and inhibited GSK3β activity, resulting in the increase in the expressions of c-Myc, MYCN, and β-catenin, which were downregulated in response to PPP3CB knockdown. Treatment with calcineurin inhibitor cyclosporin A (CsA) or FK506 suppressed cell proliferation and induced apoptotic cell death in both MYCN-amplified and MYCN-non-amplified NB cell lines. Expression of PPP3CB protein was decreased in response to two calcineurin inhibitors. c-Myc, MYCN, and β-catenin were downregulated at the mRNA and protein levels in CsA or FK506-treated NB cells. Our data indicate that elevated expression of PPP3CB and the expression of its constitutively active mutant contribute to the aggressive behavior of NB tumors and therefore suggest that inhibition of calcineurin activity might have therapeutic potential for high-risk NB.
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Affiliation(s)
- Irina Shakhova
- Chiba Cancer Center Research Institute, Chiba, Japan.,Federal Centre of Pediatric Hematology, Oncology and Immunology Named After Dmitry Rogachev, Moscow, Russia
| | - Yuanyuan Li
- Chiba Cancer Center Research Institute, Chiba, Japan.,Life Science Institute, Saga Medical Center KOSEIKAN, Saga, Japan
| | - Fan Yu
- Chiba Cancer Center Research Institute, Chiba, Japan
| | | | | | - Miki Ohira
- Chiba Cancer Center Research Institute, Chiba, Japan.,Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - Hideki Izumi
- Life Science Institute, Saga Medical Center KOSEIKAN, Saga, Japan
| | - Takao Mae
- Life Science Institute, Saga Medical Center KOSEIKAN, Saga, Japan
| | - Svetlana R Varfolomeeva
- Federal Centre of Pediatric Hematology, Oncology and Immunology Named After Dmitry Rogachev, Moscow, Russia
| | - Alexander G Rumyantsev
- Federal Centre of Pediatric Hematology, Oncology and Immunology Named After Dmitry Rogachev, Moscow, Russia
| | - Akira Nakagawara
- Chiba Cancer Center Research Institute, Chiba, Japan.,Life Science Institute, Saga Medical Center KOSEIKAN, Saga, Japan
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Al-Attar R, Storey KB. Effects of anoxic exposure on the nuclear factor of activated T cell (NFAT) transcription factors in the stress-tolerant wood frog. Cell Biochem Funct 2018; 36:420-430. [PMID: 30411386 DOI: 10.1002/cbf.3362] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 08/15/2018] [Accepted: 10/03/2018] [Indexed: 11/08/2022]
Abstract
The wood frog, Lithobates sylvaticus (also known as Rana sylvatica), is used for studying natural freeze tolerance. These animals convert 65% to 70% of their total body water into extracellular ice and survive freezing for weeks in winter. Freezing interrupts oxygen delivery to organs; thus, wood frogs limit their ATP usage by depressing their metabolism and redirecting the available energy only to prosurvival processes. Here, we studied the nuclear factor of activated T cell (NFAT) transcription factor family in response to 24-hour anoxia, and 4-hour aerobic recovery in liver and skeletal muscle. Protein expression levels of NFATc1-c4, calcineurin A and glycogen synthase kinase 3β (NFAT regulators), osteopontin, and atrial natriuretic peptide (ANP) (targets of NFATc3 and NFATc4, respectively) were measured by immunoblotting, and the DNA-binding activities of NFATc1-c4 were measured by DNA-protein interaction ELISAs. Results show that NFATc4, calcineurin, and ANP protein expression as well as NFATc4 DNA binding increased during anoxia in liver where calcineurin and ANP protein levels and NFATc4 DNA binding remaining high after aerobic recovery. Anoxia caused a significant increase in NFATc3 protein expression but not DNA-binding activity in muscle. Our results show that anoxia can increase NFATc4 transcriptional activity in liver, leading to the increase in expression of cytoprotective genes in the wood frog. Understanding the molecular mechanisms involved in mediating survival under anoxia/reoxygenation conditions in a naturally stress-tolerant model, such as the wood frog, provides insightful information on the prosurvival regulatory mechanisms involved in combating stress. This information will also further our understanding of metabolic rate depression and answer the question of how frogs tolerate prolonged periods of oxygen deprivation and resume to full function upon recovery without facing any detrimental side effects as other animals would.
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Affiliation(s)
- Rasha Al-Attar
- Institude of Biochemistry and Department of Biology, Carleton University, Ottawa, Canada
| | - Kenneth B Storey
- Institude of Biochemistry and Department of Biology, Carleton University, Ottawa, Canada
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25
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Sarikhani M, Mishra S, Maity S, Kotyada C, Wolfgeher D, Gupta MP, Singh M, Sundaresan NR. SIRT2 deacetylase regulates the activity of GSK3 isoforms independent of inhibitory phosphorylation. eLife 2018; 7:32952. [PMID: 29504933 PMCID: PMC5860870 DOI: 10.7554/elife.32952] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 03/02/2018] [Indexed: 12/28/2022] Open
Abstract
Glycogen synthase kinase 3 (GSK3) is a critical regulator of diverse cellular functions involved in the maintenance of structure and function. Enzymatic activity of GSK3 is inhibited by N-terminal serine phosphorylation. However, alternate post-translational mechanism(s) responsible for GSK3 inactivation are not characterized. Here, we report that GSK3α and GSK3β are acetylated at Lys246 and Lys183, respectively. Molecular modeling and/or molecular dynamics simulations indicate that acetylation of GSK3 isoforms would hinder both the adenosine binding and prevent stable interactions of the negatively charged phosphates. We found that SIRT2 deacetylates GSK3β, and thus enhances its binding to ATP. Interestingly, the reduced activity of GSK3β is associated with lysine acetylation, but not with phosphorylation at Ser9 in hearts of SIRT2-deficient mice. Moreover, GSK3 is required for the anti-hypertrophic function of SIRT2 in cardiomyocytes. Overall, our study identified lysine acetylation as a novel post-translational modification regulating GSK3 activity.
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Affiliation(s)
- Mohsen Sarikhani
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru, India
| | - Sneha Mishra
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru, India
| | - Sangeeta Maity
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru, India
| | - Chaithanya Kotyada
- Molecular Biophysics Unit, Indian Institute of Science, Bengaluru, India
| | - Donald Wolfgeher
- Department of Molecular Genetics and Cell biology, University of Chicago, Chicago, United States
| | - Mahesh P Gupta
- Department of Surgery, University of Chicago, Chicago, United States
| | - Mahavir Singh
- Molecular Biophysics Unit, Indian Institute of Science, Bengaluru, India
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26
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Patterson AR, Endale M, Lampe K, Aksoylar HI, Flagg A, Woodgett JR, Hildeman D, Jordan MB, Singh H, Kucuk Z, Bleesing J, Hoebe K. Gimap5-dependent inactivation of GSK3β is required for CD4 + T cell homeostasis and prevention of immune pathology. Nat Commun 2018; 9:430. [PMID: 29382851 PMCID: PMC5789891 DOI: 10.1038/s41467-018-02897-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 01/08/2018] [Indexed: 12/16/2022] Open
Abstract
GTPase of immunity-associated protein 5 (Gimap5) is linked with lymphocyte survival, autoimmunity, and colitis, but its mechanisms of action are unclear. Here, we show that Gimap5 is essential for the inactivation of glycogen synthase kinase-3β (GSK3β) following T cell activation. In the absence of Gimap5, constitutive GSK3β activity constrains c-Myc induction and NFATc1 nuclear import, thereby limiting productive CD4+ T cell proliferation. Additionally, Gimap5 facilitates Ser389 phosphorylation and nuclear translocation of GSK3β, thereby limiting DNA damage in CD4+ T cells. Importantly, pharmacological inhibition and genetic targeting of GSK3β can override Gimap5 deficiency in CD4+ T cells and ameliorates immunopathology in mice. Finally, we show that a human patient with a GIMAP5 loss-of-function mutation has lymphopenia and impaired T cell proliferation in vitro that can be rescued with GSK3 inhibitors. Given that the expression of Gimap5 is lymphocyte-restricted, we propose that its control of GSK3β is an important checkpoint in lymphocyte proliferation. Loss of function GIMAP5 mutation is associated with lymphopenia, but how it mediates T cell homeostasis is unclear. Here the authors study Gimap5−/− mice and a patient with GIMAP5 deficiency to show how this GTPAse negatively regulates GSK3β activity to prevent DNA damage and cell death.
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Affiliation(s)
- Andrew R Patterson
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA.,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, 231 Albert Sabin Way # E251n, Cincinnati, OH, 45267, USA
| | - Mehari Endale
- Division of Neonatology and Pulmonary Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA
| | - Kristin Lampe
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA
| | - Halil I Aksoylar
- Department of Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA, 02115, USA
| | - Aron Flagg
- Pediatric Hematology/Oncology and Blood & Marrow Transplant, Cleveland Clinic Children's, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Jim R Woodgett
- The Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto, ON, M5G 1X5, Canada
| | - David Hildeman
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA.,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, 231 Albert Sabin Way # E251n, Cincinnati, OH, 45267, USA
| | - Michael B Jordan
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA.,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, 231 Albert Sabin Way # E251n, Cincinnati, OH, 45267, USA
| | - Harinder Singh
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA.,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, 231 Albert Sabin Way # E251n, Cincinnati, OH, 45267, USA
| | - Zeynep Kucuk
- Division of Bone Marrow Transplantation & Immune Deficiency, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA
| | - Jack Bleesing
- Division of Bone Marrow Transplantation & Immune Deficiency, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA
| | - Kasper Hoebe
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA. .,Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, 231 Albert Sabin Way # E251n, Cincinnati, OH, 45267, USA. .,Department of Pediatrics, University of Cincinnati, College of Medicine, 3230 Eden Avenue, Cincinnati, OH, 45267, USA.
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27
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Choo YY, Tran PT, Min BS, Kim O, Nguyen HD, Kwon SH, Lee JH. Sappanone A inhibits RANKL-induced osteoclastogenesis in BMMs and prevents inflammation-mediated bone loss. Int Immunopharmacol 2017; 52:230-237. [DOI: 10.1016/j.intimp.2017.09.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Revised: 09/19/2017] [Accepted: 09/19/2017] [Indexed: 12/21/2022]
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28
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Taylor A, Rothstein D, Rudd CE. Small-Molecule Inhibition of PD-1 Transcription Is an Effective Alternative to Antibody Blockade in Cancer Therapy. Cancer Res 2017; 78:706-717. [DOI: 10.1158/0008-5472.can-17-0491] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 07/22/2017] [Accepted: 10/17/2017] [Indexed: 11/16/2022]
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29
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Malsy M, Graf B, Almstedt K. Interaction between NFATc2 and the transcription factor Sp1 in pancreatic carcinoma cells PaTu 8988t. BMC Mol Biol 2017; 18:20. [PMID: 28774282 PMCID: PMC5543739 DOI: 10.1186/s12867-017-0097-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Accepted: 07/20/2017] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Nuclear factors of activated T-cells (NFATs) have been mainly characterized in the context of immune response regulation because, as transcription factors, they have the ability to induce gene transcription. NFAT proteins are found in several types of tumors, for instance, pancreatic carcinoma. The role of NFATs in carcinogenesis is regulating central genes in cell differentiation and cell growth. NFAT proteins are primarily located in cytoplasm and only transported to the cell nucleus after activation. Here, they interact with other transcription factors cooperating with NFAT proteins, thus influencing the selection and regulation of NFAT-controlled genes. To identify and characterize possible interaction partners of the transcription factor NFATc2 in pancreatic carcinoma cells PaTu 8988t. METHODS NFATc2 expression and the mode of action of Ionomycin in the pancreatic tumor cell lines PaTu 8988t were shown with Western blotting and immunofluorescence tests. Potential partner proteins were verified by means of immunoprecipitation and binding partners, their physical interactions with DNA pull-down assays, siRNA technologies, and GST pull-down assays. Functional evidence was complemented by reporter-promoter analyses. RESULTS NFATc2 and Sp1 are co-localized in cell nuclei and physically interact at the NFAT target sequence termed NFAT-responsive promotor construct. Sp1 increases the functional activity of its binding partner NFATc2. This interaction is facilitated by Ionomycin in the early stimulation phase (up to 60 min). CONCLUSIONS Oncological therapy concepts are becoming more and more specific, aiming at the efficient modulation of specific signal and transcription pathways. The oncogenic transcription partner Sp1 is important for the transcriptional and functional activity of NFATc2 in pancreatic carcinoma. The binding partners interact in cells. Further studies are necessary to identify the underlying mechanisms and establish future therapeutic options for treating this aggressive type of tumor.
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Affiliation(s)
- Manuela Malsy
- Department of Anesthesiology, University Medical Center Regensburg, Regensburg, Germany
| | - Bernhard Graf
- Department of Anesthesiology, University Medical Center Regensburg, Regensburg, Germany
| | - Katrin Almstedt
- Department of Obstetrics and Gynecology, University Hospital Mainz, Mainz, Germany
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30
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Duran J, Oyarce C, Pavez M, Valladares D, Basualto-Alarcon C, Lagos D, Barrientos G, Troncoso MF, Ibarra C, Estrada M. GSK-3β/NFAT Signaling Is Involved in Testosterone-Induced Cardiac Myocyte Hypertrophy. PLoS One 2016; 11:e0168255. [PMID: 27977752 PMCID: PMC5158037 DOI: 10.1371/journal.pone.0168255] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 11/28/2016] [Indexed: 11/18/2022] Open
Abstract
Testosterone induces cardiac hypertrophy through a mechanism that involves a concerted crosstalk between cytosolic and nuclear signaling pathways. Nuclear factor of activated T-cells (NFAT) is associated with the promotion of cardiac hypertrophy, glycogen synthase kinase-3β (GSK-3β) is considered to function as a negative regulator, mainly by modulating NFAT activity. However, the role played by calcineurin-NFAT and GSK-3β signaling in testosterone-induced cardiac hypertrophy has remained unknown. Here, we determined that testosterone stimulates cardiac myocyte hypertrophy through NFAT activation and GSK-3β inhibition. Testosterone increased the activity of NFAT-luciferase (NFAT-Luc) in a time- and dose-dependent manner, with the activity peaking after 24 h of stimulation with 100 nM testosterone. NFAT-Luc activity induced by testosterone was blocked by the calcineurin inhibitors FK506 and cyclosporine A and by 11R-VIVIT, a specific peptide inhibitor of NFAT. Conversely, testosterone inhibited GSK-3β activity as determined by increased GSK-3β phosphorylation at Ser9 and β-catenin protein accumulation, and also by reduction in β-catenin phosphorylation at residues Ser33, Ser37, and Thr41. GSK-3β inhibition with 1-azakenpaullone or a GSK-3β-targeting siRNA increased NFAT-Luc activity, whereas overexpression of a constitutively active GSK-3β mutant (GSK-3βS9A) inhibited NFAT-Luc activation mediated by testosterone. Testosterone-induced cardiac myocyte hypertrophy was established by increased cardiac myocyte size and [3H]-leucine incorporation (as a measurement of cellular protein synthesis). Calcineurin-NFAT inhibition abolished and GSK-3β inhibition promoted the hypertrophy stimulated by testosterone. GSK-3β activation by GSK-3βS9A blocked the increase of hypertrophic markers induced by testosterone. Moreover, inhibition of intracellular androgen receptor prevented testosterone-induced NFAT-Luc activation. Collectively, these results suggest that cardiac myocyte hypertrophy induced by testosterone involves a cooperative mechanism that links androgen signaling with the recruitment of NFAT through calcineurin activation and GSK-3β inhibition.
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Affiliation(s)
- Javier Duran
- Laboratorio de Endocrinología Celular, Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Cesar Oyarce
- Laboratorio de Endocrinología Celular, Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Mario Pavez
- Laboratorio de Endocrinología Celular, Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Denisse Valladares
- Laboratorio de Endocrinología Celular, Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Carla Basualto-Alarcon
- Programa de Anatomía y Biología del Desarrollo, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Daniel Lagos
- Laboratorio de Endocrinología Celular, Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Genaro Barrientos
- Laboratorio de Endocrinología Celular, Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Mayarling Francisca Troncoso
- Laboratorio de Endocrinología Celular, Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Cristian Ibarra
- Heart Failure Bioscience Department, Cardiovascular and Metabolic Diseases (CVMD), Innovative Medicines & Early Development iMED Biotech unit, AstraZeneca R&D, Mölndal, Sweden
| | - Manuel Estrada
- Laboratorio de Endocrinología Celular, Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
- * E-mail:
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31
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Eicosapentaenoic and Docosahexaenoic Acid-Enriched High Fat Diet Delays Skeletal Muscle Degradation in Mice. Nutrients 2016; 8:nu8090543. [PMID: 27598198 PMCID: PMC5037530 DOI: 10.3390/nu8090543] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 08/22/2016] [Accepted: 08/25/2016] [Indexed: 01/06/2023] Open
Abstract
Low-grade chronic inflammatory conditions such as ageing, obesity and related metabolic disorders are associated with deterioration of skeletal muscle (SkM). Human studies have shown that marine fatty acids influence SkM function, though the underlying mechanisms of action are unknown. As a model of diet-induced obesity, we fed C57BL/6J mice either a high fat diet (HFD) with purified marine fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) (HFD-ED), a HFD with corn oil, or normal mouse chow for 8 weeks; and used transcriptomics to identify the molecular effects of EPA and DHA on SkM. Consumption of ED-enriched HFD modulated SkM metabolism through increased gene expression of mitochondrial β-oxidation and slow-fiber type genes compared with HFD-corn oil fed mice. Furthermore, HFD-ED intake increased nuclear localization of nuclear factor of activated T-cells (Nfatc4) protein, which controls fiber-type composition. This data suggests a role for EPA and DHA in mitigating some of the molecular responses due to a HFD in SkM. Overall, the results suggest that increased consumption of the marine fatty acids EPA and DHA may aid in the prevention of molecular processes that lead to muscle deterioration commonly associated with obesity-induced low-grade inflammation.
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32
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Yokoyama S, Ohno Y, Egawa T, Yasuhara K, Nakai A, Sugiura T, Ohira Y, Yoshioka T, Okita M, Origuchi T, Goto K. Heat shock transcription factor 1-associated expression of slow myosin heavy chain in mouse soleus muscle in response to unloading with or without reloading. Acta Physiol (Oxf) 2016; 217:325-37. [PMID: 27084024 DOI: 10.1111/apha.12692] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 11/28/2015] [Accepted: 04/11/2016] [Indexed: 12/28/2022]
Abstract
AIM The effects of heat shock transcription factor 1 (HSF1) deficiency on the fibre type composition and the expression level of nuclear factor of activated T cells (NFAT) family members (NFATc1, NFATc2, NFATc3 and NFATc4), phosphorylated glycogen synthase kinase 3α (p-GSK3α) and p-GSK3β, microRNA-208b (miR-208b), miR-499 and slow myosin heavy chain (MyHC) mRNAs (Myh7 and Myh7b) of antigravitational soleus muscle in response to unloading with or without reloading were investigated. METHODS HSF1-null and wild-type mice were subjected to continuous 2-week hindlimb suspension followed by 2- or 4-week ambulation recovery. RESULTS In wild-type mice, the relative population of slow type I fibres, the expression level of NFATc2, p-GSK3 (α and β), miR-208b, miR-499 and slow MyHC mRNAs (Myh7 and Myh7b) were all decreased with hindlimb suspension, but recovered after it. Significant interactions between train and time (the relative population of slow type I fibres; P = 0.01, the expression level of NFATc2; P = 0.001, p-GSKβ; P = 0.009, miR-208b; P = 0.002, miR-499; P = 0.04) suggested that these responses were suppressed in HSF1-null mice. CONCLUSION HSF1 may be a molecule in the regulation of the expression of slow MyHC as well as miR-208b, miR-499, NFATc2 and p-GSK3 (α and β) in mouse soleus muscle.
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Affiliation(s)
- S. Yokoyama
- Department of Locomotive Rehabilitation Science; Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
- Laboratory of Physiology; School of Health Science; Toyohashi SOZO University; Toyohashi Japan
| | - Y. Ohno
- Laboratory of Physiology; School of Health Science; Toyohashi SOZO University; Toyohashi Japan
| | - T. Egawa
- Department of Physiology; Graduate School of Health Science; Toyohashi SOZO University; Toyohashi Japan
| | - K. Yasuhara
- Department of Orthopaedic Surgery; St. Marianna University School of Medicine; Kawasaki Japan
| | - A. Nakai
- Department of Molecular Biology; Graduate School of Medicine; Yamaguchi University; Ube Japan
| | - T. Sugiura
- Faculty of Education; Yamaguchi University; Yamaguchi Japan
| | - Y. Ohira
- Faculty and Graduate School of Health and Sports Sciences; Doshisha University; Kyotanabe Japan
| | | | - M. Okita
- Department of Locomotive Rehabilitation Science; Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
| | - T. Origuchi
- Department of Locomotive Rehabilitation Science; Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
| | - K. Goto
- Laboratory of Physiology; School of Health Science; Toyohashi SOZO University; Toyohashi Japan
- Department of Physiology; Graduate School of Health Science; Toyohashi SOZO University; Toyohashi Japan
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33
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Seo HH, Lee CY, Lee J, Lim S, Choi E, Park JC, Lee S, Hwang KC. The role of nuclear factor of activated T cells during phorbol myristate acetate-induced cardiac differentiation of mesenchymal stem cells. Stem Cell Res Ther 2016; 7:90. [PMID: 27405982 PMCID: PMC4942985 DOI: 10.1186/s13287-016-0348-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 06/03/2016] [Accepted: 06/17/2016] [Indexed: 11/16/2022] Open
Abstract
Background We previously reported that phorbol 12-myristate 13-acetate (PMA) treatment can induce the cardiac differentiation of mesenchymal stem cells (MSCs). In the present study, we investigated how PMA induces cardiac differentiation of MSCs, focusing on its effect on the transcription factors responsible for increased cardiac marker gene expression. Methods Human MSCs (hMSCs) were treated with 1 μM PMA for 9 days. The expression of MSC markers and cardiac markers in the PMA-treated hMSC, as well as the nuclear translocation of transcription factors, nuclear factor of activated T cells (NFAT), and myogenic differentiation 1 (MyoD), was examined. Transcriptional activity of NFAT was examined by utilizing a green fluorescent protein (GFP) vector containing NFAT motif of human interleukin-2 promoter. The effect of PMA on the expression of key cell cycle regulators was examined. Results PMA induces the transcriptional activity of NFAT and MyoD, which have been associated with increased expression of cardiac troponin T (cTnT) and myosin heavy chain (MHC), respectively. Our data suggested that protein kinase C (PKC) mediates the effect of PMA on NFAT activation. Furthermore, PMA treatment increased cell-cycle regulator p27kip1 expression, suggesting that PMA triggers the cardiac differentiation program in MSCs by regulating key transcription factors and cell cycle regulators. Conclusions The results of this study demonstrate the importance of NFAT activation during PMA-induced MSC differentiation and help us to better understand the underlying mechanisms of small molecule-mediated MSC differentiation so that we can develop a strategy for synthesizing novel and improved differentiation-inducing small molecules. Electronic supplementary material The online version of this article (doi:10.1186/s13287-016-0348-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hyang-Hee Seo
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul, South Korea
| | - Chang Youn Lee
- Department of Integrated Omics for Biomedical Sciences, Yonsei University, Seoul, South Korea
| | - Jiyun Lee
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul, South Korea
| | - Soyeon Lim
- Institute for Bio-medical Convergence, Catholic Kwandong University, Incheon, South Korea
| | - Eunhyun Choi
- Institute for Bio-medical Convergence, Catholic Kwandong University, Incheon, South Korea
| | - Jong-Chul Park
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul, South Korea
| | - Seahyoung Lee
- Institute for Bio-medical Convergence, Catholic Kwandong University, Incheon, South Korea. .,Department of Biomedical Sciences, College of Medicine, Catholic Kwandong University, Gangneung, Gangwon-do, South Korea.
| | - Ki-Chul Hwang
- Institute for Bio-medical Convergence, Catholic Kwandong University, Incheon, South Korea. .,Department of Biomedical Sciences, College of Medicine, Catholic Kwandong University, Gangneung, Gangwon-do, South Korea.
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Blockade of Astrocytic Calcineurin/NFAT Signaling Helps to Normalize Hippocampal Synaptic Function and Plasticity in a Rat Model of Traumatic Brain Injury. J Neurosci 2016; 36:1502-15. [PMID: 26843634 DOI: 10.1523/jneurosci.1930-15.2016] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
UNLABELLED Increasing evidence suggests that the calcineurin (CN)-dependent transcription factor NFAT (Nuclear Factor of Activated T cells) mediates deleterious effects of astrocytes in progressive neurodegenerative conditions. However, the impact of astrocytic CN/NFAT signaling on neural function/recovery after acute injury has not been investigated extensively. Using a controlled cortical impact (CCI) procedure in rats, we show that traumatic brain injury is associated with an increase in the activities of NFATs 1 and 4 in the hippocampus at 7 d after injury. NFAT4, but not NFAT1, exhibited extensive labeling in astrocytes and was found throughout the axon/dendrite layers of CA1 and the dentate gyrus. Blockade of the astrocytic CN/NFAT pathway in rats using adeno-associated virus (AAV) vectors expressing the astrocyte-specific promoter Gfa2 and the NFAT-inhibitory peptide VIVIT prevented the injury-related loss of basal CA1 synaptic strength and key synaptic proteins and reduced the susceptibility to induction of long-term depression. In conjunction with these seemingly beneficial effects, VIVIT treatment elicited a marked increase in the expression of the prosynaptogenic factor SPARCL1 (hevin), especially in hippocampal tissue ipsilateral to the CCI injury. However, in contrast to previous work on Alzheimer's mouse models, AAV-Gfa2-VIVIT had no effects on the levels of GFAP and Iba1, suggesting that synaptic benefits of VIVIT were not attributable to a reduction in glial activation per se. Together, the results implicate the astrocytic CN/NFAT4 pathway as a key mechanism for disrupting synaptic remodeling and homeostasis in the hippocampus after acute injury. SIGNIFICANCE STATEMENT Similar to microglia, astrocytes become strongly "activated" with neural damage and exhibit numerous morphologic/biochemical changes, including an increase in the expression/activity of the protein phosphatase calcineurin. Using adeno-associated virus (AAV) to inhibit the calcineurin-dependent activation of the transcription factor NFAT (Nuclear Factor of Activated T cells) selectively, we have shown that activated astrocytes contribute to neural dysfunction in animal models characterized by progressive/chronic neuropathology. Here, we show that the suppression of astrocytic calcineurin/NFATs helps to protect synaptic function and plasticity in an animal model in which pathology arises from a single traumatic brain injury. The findings suggest that at least some astrocyte functions impair recovery after trauma and may provide druggable targets for treating victims of acute nervous system injury.
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Santio NM, Salmela M, Arola H, Eerola SK, Heino J, Rainio EM, Koskinen PJ. The PIM1 kinase promotes prostate cancer cell migration and adhesion via multiple signalling pathways. Exp Cell Res 2016; 342:113-24. [PMID: 26934497 DOI: 10.1016/j.yexcr.2016.02.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/24/2016] [Accepted: 02/26/2016] [Indexed: 01/30/2023]
Abstract
The ability of cells to migrate and form metastases is one of the fatal hallmarks of cancer that can be conquered only with better understanding of the molecules and regulatory mechanisms involved. The oncogenic PIM kinases have been shown to support cancer cell survival and motility, but the PIM-regulated pathways stimulating cell migration and invasion are less well characterized than those affecting cell survival. Here we have identified the glycogen synthase kinase 3β (GSK3B) and the forkhead box P3 (FOXP3) transcription factor as direct PIM targets, whose tumour-suppressive effects in prostate cancer cells are inhibited by PIM-induced phosphorylation, resulting in increased cell migration. Targeting GSK3B is also essential for the observed PIM-enhanced expression of the prostaglandin-endoperoxide synthase 2 (PTGS2), which is an important regulator of both cell migration and adhesion. Accordingly, selective inhibition of PIM activity not only reduces cell migration, but also affects integrin-mediated cell adhesion. Taken together, these data provide novel mechanistic insights on how and why patients with metastatic prostate cancer may benefit from therapies targeting PIM kinases, and how such approaches may also be applicable to inflammatory conditions.
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Affiliation(s)
- Niina M Santio
- Section of Genetics and Physiology, Department of Biology, University of Turku, 20500 Turku, Finland; Drug Research Doctoral Programme, University of Turku, 20520 Turku, Finland
| | - Maria Salmela
- Department of Biochemistry, University of Turku, 20500 Turku, Finland
| | - Heidi Arola
- Section of Genetics and Physiology, Department of Biology, University of Turku, 20500 Turku, Finland
| | - Sini K Eerola
- Section of Genetics and Physiology, Department of Biology, University of Turku, 20500 Turku, Finland
| | - Jyrki Heino
- Department of Biochemistry, University of Turku, 20500 Turku, Finland
| | - Eeva-Marja Rainio
- Section of Genetics and Physiology, Department of Biology, University of Turku, 20500 Turku, Finland
| | - Päivi J Koskinen
- Section of Genetics and Physiology, Department of Biology, University of Turku, 20500 Turku, Finland.
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36
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Taylor A, Harker JA, Chanthong K, Stevenson PG, Zuniga EI, Rudd CE. Glycogen Synthase Kinase 3 Inactivation Drives T-bet-Mediated Downregulation of Co-receptor PD-1 to Enhance CD8(+) Cytolytic T Cell Responses. Immunity 2016; 44:274-86. [PMID: 26885856 PMCID: PMC4760122 DOI: 10.1016/j.immuni.2016.01.018] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Revised: 05/12/2015] [Accepted: 11/11/2015] [Indexed: 01/22/2023]
Abstract
Despite the importance of the co-receptor PD-1 in T cell immunity, the upstream signaling pathway that regulates PD-1 expression has not been defined. Glycogen synthase kinase 3 (GSK-3, isoforms α and β) is a serine-threonine kinase implicated in cellular processes. Here, we identified GSK-3 as a key upstream kinase that regulated PD-1 expression in CD8(+) T cells. GSK-3 siRNA downregulation, or inhibition by small molecules, blocked PD-1 expression, resulting in increased CD8(+) cytotoxic T lymphocyte (CTL) function. Mechanistically, GSK-3 inactivation increased Tbx21 transcription, promoting enhanced T-bet expression and subsequent suppression of Pdcd1 (encodes PD-1) transcription in CD8(+) CTLs. Injection of GSK-3 inhibitors in mice increased in vivo CD8(+) OT-I CTL function and the clearance of murine gamma-herpesvirus 68 and lymphocytic choriomeningitis clone 13 and reversed T cell exhaustion. Our findings identify GSK-3 as a regulator of PD-1 expression and demonstrate the applicability of GSK-3 inhibitors in the modulation of PD-1 in immunotherapy.
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Affiliation(s)
- Alison Taylor
- Cell Signalling Section, Division of Immunology, Department of Pathology, Tennis Court Road, University of Cambridge, Cambridge CB2 1QP, UK
| | - James A Harker
- Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093, USA
| | - Kittiphat Chanthong
- Cell Signalling Section, Division of Immunology, Department of Pathology, Tennis Court Road, University of Cambridge, Cambridge CB2 1QP, UK
| | - Philip G Stevenson
- Division of Virology, Department of Pathology, University of Cambridge, Cambridge CB2 2QQ, UK
| | - Elina I Zuniga
- Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093, USA
| | - Christopher E Rudd
- Cell Signalling Section, Division of Immunology, Department of Pathology, Tennis Court Road, University of Cambridge, Cambridge CB2 1QP, UK.
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37
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Baumgart S, Chen NM, Zhang JS, Billadeau DD, Gaisina IN, Kozikowski AP, Singh SK, Fink D, Ströbel P, Klindt C, Zhang L, Bamlet WR, Koenig A, Hessmann E, Gress TM, Ellenrieder V, Neesse A. GSK-3β Governs Inflammation-Induced NFATc2 Signaling Hubs to Promote Pancreatic Cancer Progression. Mol Cancer Ther 2016; 15:491-502. [PMID: 26823495 DOI: 10.1158/1535-7163.mct-15-0309] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 11/28/2015] [Indexed: 12/13/2022]
Abstract
We aimed to investigate the mechanistic, functional, and therapeutic role of glycogen synthase kinase 3β (GSK-3β) in the regulation and activation of the proinflammatory oncogenic transcription factor nuclear factor of activated T cells (NFATc2) in pancreatic cancer. IHC, qPCR, immunoblotting, immunofluorescence microscopy, and proliferation assays were used to analyze mouse and human tissues and cell lines. Protein-protein interactions and promoter regulation were analyzed by coimmunoprecipitation, DNA pulldown, reporter, and ChIP assays. Preclinical assays were performed using a variety of pancreatic cancer cells lines, xenografts, and a genetically engineered mouse model (GEMM). GSK-3β-dependent SP2 phosphorylation mediates NFATc2 protein stability in the nucleus of pancreatic cancer cells stimulating pancreatic cancer growth. In addition to protein stabilization, GSK-3β also maintains NFATc2 activation through a distinct mechanism involving stabilization of NFATc2-STAT3 complexes independent of SP2 phosphorylation. For NFATc2-STAT3 complex formation, GSK-3β-mediated phosphorylation of STAT3 at Y705 is required to stimulate euchromatin formation of NFAT target promoters, such as cyclin-dependent kinase-6, which promotes tumor growth. Finally, preclinical experiments suggest that targeting the NFATc2-STAT3-GSK-3β module inhibits proliferation and tumor growth and interferes with inflammation-induced pancreatic cancer progression in Kras(G12D) mice. In conclusion, we describe a novel mechanism by which GSK-3β fine-tunes NFATc2 and STAT3 transcriptional networks to integrate upstream signaling events that govern pancreatic cancer progression and growth. Furthermore, the therapeutic potential of GSK-3β is demonstrated for the first time in a relevant Kras and inflammation-induced GEMM for pancreatic cancer.
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Affiliation(s)
- Sandra Baumgart
- Department of Gastroenterology, Endocrinology, Infectiology and Metabolism, University of Marburg, Marburg, Germany
| | - Nai-Ming Chen
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Jin-San Zhang
- Schulze Center for Novel Therapeutics, Division of Oncology Research, Mayo Clinic, Rochester, Minnesota
| | - Daniel D Billadeau
- Schulze Center for Novel Therapeutics, Division of Oncology Research, Mayo Clinic, Rochester, Minnesota
| | - Irina N Gaisina
- Drug Discovery Program, Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, Illinois
| | - Alan P Kozikowski
- Drug Discovery Program, Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, Illinois
| | - Shiv K Singh
- Barrow Brain Tumor Research Center, St. Joseph's Hospital and Medical Center, Phoenix, Arizona
| | - Daniel Fink
- Department of Gastroenterology, Endocrinology, Infectiology and Metabolism, University of Marburg, Marburg, Germany
| | - Philipp Ströbel
- Institute of Pathology, University Medical Center Göttingen, Göttingen, Germany
| | - Caroline Klindt
- Department of Gastroenterology, Endocrinology, Infectiology and Metabolism, University of Marburg, Marburg, Germany
| | - Lizhi Zhang
- Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota
| | - William R Bamlet
- Division of Biostatistics, College of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Alexander Koenig
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Elisabeth Hessmann
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Thomas M Gress
- Department of Gastroenterology, Endocrinology, Infectiology and Metabolism, University of Marburg, Marburg, Germany
| | - Volker Ellenrieder
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Albrecht Neesse
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Center Göttingen, Göttingen, Germany.
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Akiba Y, Mizuta A, Kakihara Y, Nakata J, Nihara J, Saito I, Egusa H, Saeki M. The inhibitors of cyclin-dependent kinases and GSK-3β enhance osteoclastogenesis. Biochem Biophys Rep 2015; 5:253-258. [PMID: 28955831 PMCID: PMC5600418 DOI: 10.1016/j.bbrep.2015.12.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 11/24/2015] [Accepted: 12/28/2015] [Indexed: 11/25/2022] Open
Abstract
Osteoclasts are multinucleated cells with bone resorption activity that is crucial for bone remodeling. RANK‐RANKL (receptor activator of nuclear factor κB ligand) signaling has been shown as a main signal pathway for osteoclast differentiation. However, the molecular mechanism and the factors regulating osteoclastogenesis remain to be fully understood. In this study, we performed a chemical genetic screen, and identified a Cdks/GSK-3β (cyclin-dependent kinases/glycogen synthase kinase 3β) inhibitor, kenpaullone, and two Cdks inhibitors, olomoucine and roscovitine, all of which significantly enhance osteoclastogenesis of RAW264.7 cells by upregulating NFATc1 (nuclear factor of activated T cells, cytoplasmic 1) levels. We also determined that the all three compounds increase the number of osteoclast differentiated from murine bone marrow cells. Furthermore, the three inhibitors, especially kenpaullone, promoted maturation of cathepsin K, suggesting that the resorption activity of the resultant osteoclasts is also activated. Our findings indicate that inhibition of GSK-3β and/or Cdks enhance osteoclastogenesis by modulating the RANK–RANKL signaling pathway. We performed a chemical genetic screen to identify drugs which modulate osteoclastogenesis. The screening determined a Cdk/GSK-3β inhibitor, kenpaullone, and two Cdk inhibitors, olomoucine and roscovitine, as activators of osteoclastogenesis. The kenpaullone, olomoucine, and roscovitine induce an enhanced osteoclastogenesis by upregulating NFATc1 and mature cathepsin K levels.
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Affiliation(s)
- Yosuke Akiba
- Division of Bio-Prosthodontics, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Chuoku, Niigata 951-8514, Japan
| | - Akiko Mizuta
- Department of Pharmacology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoshito Kakihara
- Division of Dental Pharmacology, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkochodori, Chuoku, Niigata 951-8514, Japan
| | - Juri Nakata
- Division of Dental Pharmacology, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkochodori, Chuoku, Niigata 951-8514, Japan.,Division of Orthodontics, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Chuoku, Niigata 951-8514, Japan
| | - Jun Nihara
- Division of Orthodontics, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Chuoku, Niigata 951-8514, Japan
| | - Isao Saito
- Division of Orthodontics, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Chuoku, Niigata 951-8514, Japan
| | - Hiroshi Egusa
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Makio Saeki
- Division of Dental Pharmacology, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkochodori, Chuoku, Niigata 951-8514, Japan
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Kim KJ, Yeon JT, Choi SW, Moon SH, Ryu BJ, Yu R, Park SJ, Kim SH, Son YJ. Decursin inhibits osteoclastogenesis by downregulating NFATc1 and blocking fusion of pre-osteoclasts. Bone 2015. [PMID: 26208796 DOI: 10.1016/j.bone.2015.07.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Bone sustains its structure through dynamic interaction between osteoblastic cells and osteoclastic cells. But imbalance may lead to osteoporosis caused by overactivated osteoclast cells that have bone-resorbing function. Recently, herbs have been researched as major sources of medicines in many countries. In vitro and in vivo anti-osteoclastogenic activity of Angelica gigas NAKAI have been reported, but the biological activity of decursin, its major component in osteoclast differentiation is still unknown. Therefore, in this study, we explored whether decursin could affect RANKL-mediated osteoclastogenesis. The results showed that decursin efficiently inhibited RANKL-activated osteoclast differentiation by inhibiting transcriptional and translational expression of NFATc1, a major factor in RANKL-mediated osteoclastogenesis. Furthermore, decursin decreased fusion and migration of pre-osteoclasts by downregulating mRNA expression levels of DC-STAMP and β3 integrin, respectively. In addition, decursin prevents lipopolysaccharide (LPS)-induced bone erosion in vivo. In summary, decursin could prevent osteoclastogenesis and inflammatory bone loss via blockage of NFATc1 activity and fusion and migration of pre-osteoclasts, and it could be developed as a potent phytochemical candidate for treating pathologies of bone diseases.
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Affiliation(s)
- Kwang-Jin Kim
- Department of Pharmacy, Sunchon National University, Suncheon 540-742, Republic of Korea
| | - Jeong-Tae Yeon
- Research Institute of Basic Science, Sunchon National University, Suncheon 540-742, Republic of Korea
| | - Sik-Won Choi
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Division of Drug Discovery Research, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
| | - Seong-Hee Moon
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Division of Drug Discovery Research, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea; Department of Biology, Chungnam National University, Daejeon 305-510, Republic of Korea
| | - Byung Jun Ryu
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Division of Drug Discovery Research, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
| | - Ri Yu
- College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Sang-Joon Park
- College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Seong Hwan Kim
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Division of Drug Discovery Research, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea.
| | - Young-Jin Son
- Department of Pharmacy, Sunchon National University, Suncheon 540-742, Republic of Korea.
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40
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Blazek JD, Abeysekera I, Li J, Roper RJ. Rescue of the abnormal skeletal phenotype in Ts65Dn Down syndrome mice using genetic and therapeutic modulation of trisomic Dyrk1a. Hum Mol Genet 2015; 24:5687-96. [PMID: 26206885 DOI: 10.1093/hmg/ddv284] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 07/13/2015] [Indexed: 01/26/2023] Open
Abstract
Trisomy 21 causes skeletal alterations in individuals with Down syndrome (DS), but the causative trisomic gene and a therapeutic approach to rescue these abnormalities are unknown. Individuals with DS display skeletal alterations including reduced bone mineral density, modified bone structure and distinctive facial features. Due to peripheral skeletal anomalies and extended longevity, individuals with DS are increasingly more susceptible to bone fractures. Understanding the genetic and developmental origin of DS skeletal abnormalities would facilitate the development of therapies to rescue these and other deficiencies associated with DS. DYRK1A is found in three copies in individuals with DS and Ts65Dn DS mice and has been hypothesized to be involved in many Trisomy 21 phenotypes including skeletal abnormalities. Return of Dyrk1a copy number to normal levels in Ts65Dn mice rescued the appendicular bone abnormalities, suggesting that appropriate levels of DYRK1A expression are critical for the development and maintenance of the DS appendicular skeleton. Therapy using the DYRK1A inhibitor epigallocatechin-3-gallate improved Ts65Dn skeletal phenotypes. These outcomes suggest that the osteopenic phenotype associated with DS may be rescued postnatally by targeting trisomic Dyrk1a.
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Affiliation(s)
- Joshua D Blazek
- Department of Biology, Indiana University-Purdue University Indianapolis and Indiana University Center for Regenerative Biology and Medicine, Indianapolis, IN 46202, USA
| | - Irushi Abeysekera
- Department of Biology, Indiana University-Purdue University Indianapolis and Indiana University Center for Regenerative Biology and Medicine, Indianapolis, IN 46202, USA
| | - Jiliang Li
- Department of Biology, Indiana University-Purdue University Indianapolis and Indiana University Center for Regenerative Biology and Medicine, Indianapolis, IN 46202, USA
| | - Randall J Roper
- Department of Biology, Indiana University-Purdue University Indianapolis and Indiana University Center for Regenerative Biology and Medicine, Indianapolis, IN 46202, USA
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41
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Hami J, Karimi R, Haghir H, Gholamin M, Sadr-Nabavi A. Diabetes in Pregnancy Adversely Affects the Expression of Glycogen Synthase Kinase-3β in the Hippocampus of Rat Neonates. J Mol Neurosci 2015; 57:273-81. [PMID: 26242887 DOI: 10.1007/s12031-015-0617-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 07/07/2015] [Indexed: 12/18/2022]
Abstract
Diabetes during pregnancy causes a wide range of neurodevelopmental and neurocognitive abnormalities in offspring. Glycogen synthase kinase-3 (GSK-3) is widely expressed during brain development and regulates multiple cellular processes, and its dysregulation is implicated in the pathogenesis of diverse neurodegenerative and psychological diseases. This study was designed to examine the effects of maternal diabetes on GSK-3β messenger RNA (mRNA) expression and phosphorylation in the developing rat hippocampus. Female rats were maintained diabetic from a week before pregnancy through parturition, and male offspring was killed immediately after birth. We found a significant bilateral upregulation of GSK-3β mRNA expression in the hippocampus of pups born to diabetic mothers at P0, compared to controls. Moreover, at the same time point, there was a marked bilateral increase in the phosphorylation level of GSK-3β in the diabetic group. Unlike phosphorylation levels, there was a significant upregulation in hippocampal GSK-3β mRNA expression in the insulin-treated group, when compared to controls. The present study revealed that diabetes during pregnancy strongly influences the regulation of GSK-3β in the right/left developing hippocampi. These dysregulations may be part of the cascade of events through which diabetes during pregnancy affects the newborn's hippocampal structure and function.
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Affiliation(s)
- Javad Hami
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Razieh Karimi
- Medical Genetics Research Center (MGRC), School of Medicine, Mashhad University of Medical Sciences (MUMS), Mashhad, Iran.,Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences (MUMS), Azadi Square, Mashhad, Iran
| | - Hossein Haghir
- Medical Genetics Research Center (MGRC), School of Medicine, Mashhad University of Medical Sciences (MUMS), Mashhad, Iran.,Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences (MUMS), Mashhad, Iran
| | - Mehran Gholamin
- Division of Human Genetics, Immunology Research Center, Avicenna Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ariane Sadr-Nabavi
- Medical Genetics Research Center (MGRC), School of Medicine, Mashhad University of Medical Sciences (MUMS), Mashhad, Iran. .,Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences (MUMS), Azadi Square, Mashhad, Iran. .,Molecular Medicine Research Department, Iranian Academic Centers for Education, Culture and Research (ACECR)-Khorasan Razavi Branch, Mashhad, Iran.
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42
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Balogh A, Németh M, Koloszár I, Markó L, Przybyl L, Jinno K, Szigeti C, Heffer M, Gebhardt M, Szeberényi J, Müller DN, Sétáló G, Pap M. Overexpression of CREB protein protects from tunicamycin-induced apoptosis in various rat cell types. Apoptosis 2015; 19:1080-98. [PMID: 24722832 DOI: 10.1007/s10495-014-0986-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Endoplasmic reticulum (ER) stress plays an essential role in unfolded protein response induced apoptosis contributing to several pathological conditions. Glycogen synthase kinase-3β (GSK-3β) plays a central role in several apoptotic signaling, including ER stress, as the active form of GSK-3β induces apoptosis. The phosphorylation of cAMP responsive element (CRE) binding protein (CREB) Ser-133 (S133) residue is the end-point of various signaling pathways, like growth factor signaling, while the Ser-129 (S129) residue is phosphorylated by GSK-3β. The significance of the ubiquitously expressed transcription factor CREB is demonstrated in prolonged, tunicamycin (TM)-induced ER stress in this study. In the experiments wild-type (wt) CREB, S129Ala, S133Ala or S129Ala-S133Ala mutant CREB expressing PC12 rat pheochromocytoma cell lines showed increased survival under TM-evoked prolonged ER stress compared to wtPC12 cells. After TM treatment ER stress was activated in all PC12 cell types. Lithium and SB-216763, the selective, well-known inhibitors of GSK-3β, decreased TM-induced apoptosis and promoted cell survival. The proapoptotic BH3-only Bcl-2 family member Bcl-2-interacting mediator of cell death (Bim) level was decreased in the different CREB overexpressing PC12 cells as a result of TM treatment. CREB overexpression also inhibited the sequestration of Bim protein from tubulin molecules, as it was demonstrated in wtPC12 cells. Transient expression of wtCREB diminished TM-induced apoptosis in wtPC12, Rat-1 and primary rat vascular smooth muscle cells. These findings demonstrate a novel role of CREB in different cell types as a potent protector against ER stress.
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Affiliation(s)
- András Balogh
- Department of Medical Biology, University of Pécs Medical School, Szigeti 12, Pecs, 7624, Hungary
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Lim J, Choi HS, Choi HJ. Estrogen-related receptor gamma regulates dopaminergic neuronal phenotype by activating GSK3β/NFAT signaling in SH-SY5Y cells. J Neurochem 2015; 133:544-57. [PMID: 25727910 DOI: 10.1111/jnc.13085] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 02/17/2015] [Accepted: 02/26/2015] [Indexed: 01/22/2023]
Abstract
The orphan nuclear receptor estrogen-related receptor gamma (ERRγ) is highly expressed in the nervous system during embryogenesis and in adult brains, but its physiological role in neuronal development remains unknown. In this study, we evaluated the relevance of ERRγ in regulating dopaminergic (DAergic) phenotype and the corresponding signaling pathway. We used retinoic acid (RA) to differentiate human neuroblastoma SH-SY5Y cells. RA induced neurite outgrowth of SH-SY5Y cells with an increase in DAergic neuron-like properties, including up-regulation of tyrosine hydroxylase, dopamine transporter, and vesicular monoamine transporter 2. ERRγ, but not ERRα, was up-regulated by RA, and participated in RA effect on SH-SY5Y cells. ERRγ over-expression enhanced mature DAergic neuronal phenotype with neurite outgrowth as with RA treatment; and RA-induced increase in DAergic phenotype was attenuated by silencing ERRγ expression. ERRγ appears to have a crucial role in morphological and functional regulation of cells that is selective for DAergic neurons. Polo-like kinase 2 was up-regulated in ERRγ-over-expressing SH-SY5Y cells, which was involved in phosphorylation of glycogen synthase kinase 3β and resulting downstream activation of nuclear factor of activated T cells. The likely involvement of ERRγ in regulating the DAergic neuronal phenotype makes this orphan nuclear receptor a novel target for understanding DAergic neuronal differentiation. We propose the relevance of estrogen-related receptor gamma (ERRγ) in regulating dopaminergic neuronal phenotype: ERRγ is up-regulated by retinoic acid in SH-SY5Y cells, and enhances dopaminergic phenotypes and induces neurite outgrowth; Polo-like kinase 2 (PLK2) and glycogen synthase kinase 3 beta/nuclear factor of activated T cells (GSK3β/NFAT) signaling are responsible for the ERRγ effect. Our findings provide the first insights into the role of ERRγ in the brain, as a novel approach toward understanding dopaminergic differentiation.
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Affiliation(s)
- Juhee Lim
- College of Pharmacy, CHA University, Seongnam, Korea
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Koide N, Kaneda A, Yokochi T, Umezawa K. Inhibition of RANKL- and LPS-induced osteoclast differentiations by novel NF-κB inhibitor DTCM-glutarimide. Int Immunopharmacol 2015; 25:162-8. [DOI: 10.1016/j.intimp.2015.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 01/05/2015] [Accepted: 01/05/2015] [Indexed: 01/11/2023]
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Shim KS, Kim T, Ha H, Lee CJ, Lee B, Kim HS, Park JH, Ma JY. Water extract of Magnolia officinalis cortex inhibits osteoclastogenesis and bone resorption by downregulation of nuclear factor of activated T cells cytoplasmic 1. Integr Med Res 2015; 4:102-111. [PMID: 28664115 PMCID: PMC5481806 DOI: 10.1016/j.imr.2015.02.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 01/30/2015] [Accepted: 02/03/2015] [Indexed: 11/17/2022] Open
Abstract
Background Magnolia officinalis cortex has been traditionally used to treat stomach and intestine diseases in traditional Korean medicine. In this study, we investigated the effect of water extract of M. officinalis cortex (WEMC) on osteoclast differentiation and function. Methods Phytochemical characterization of WEMC was performed by high-performance liquid chromatography analysis. Osteoclast differentiation of bone marrow-derived macrophages was determined by tartrate-resistant acid phosphatase activity assay. Receptor activator of nuclear factor-κB ligand (RANKL) signaling factors and transcription factors regulating osteoclast differentiation were analyzed by Western blot and real-time polymerase chain reaction. Bone resorption function of mature osteoclasts was examined by using culture plate coated with inorganic crystalline calcium phosphate. Furthermore, the in vivo effect of WEMC on osteoporosis was examined using RANKL-induced bone loss model, characterized by micro-computed tomography and bone metabolism marker analysis. Results WEMC inhibited RANKL-induced osteoclast differentiation and the bone resorbing activity of mature osteoclasts. WEMC contains gallic acid and honokiol as active constituents contributing to the inhibitory effect of WEMC on osteoclast differentiation. Further, WEMC suppressed RANKL-induced activation of p38 and nuclear factor-κB pathways and expression of osteoclastogenic transcription factors such as c-Fos for AP-1 and nuclear factor of activated T cells cytoplasmic 1. Ectopic overexpression of a constitutive active form of nuclear factor of activated T cells cytoplasmic 1 rescued the antiosteoclastogenic effect of WEMC. Consistent with the in vitro results, WEMC suppressed RANKL-induced trabecular bone loss in mice. Conclusion WEMC might have a therapeutic potential to treat pathological bone diseases due to increased osteoclast differentiation and function.
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Affiliation(s)
- Ki-Shuk Shim
- Korean Medicine-Based Herbal Drug Development Group, Korea Institute of Oriental Medicine, Daejeon, Korea
| | - Taesoo Kim
- Korean Medicine-Based Herbal Drug Development Group, Korea Institute of Oriental Medicine, Daejeon, Korea
| | - Hyunil Ha
- Korean Medicine-Based Herbal Drug Development Group, Korea Institute of Oriental Medicine, Daejeon, Korea
| | - Chung-Jo Lee
- Korean Medicine-Based Herbal Drug Development Group, Korea Institute of Oriental Medicine, Daejeon, Korea
| | - Bohyoung Lee
- Korean Medicine-Based Herbal Drug Development Group, Korea Institute of Oriental Medicine, Daejeon, Korea
| | - Han Sung Kim
- Department of Biomedical Engineering, Institute of Medical Engineering and Yonsei-Fraunhofer Medical Device Lab, Yonsei University, Wonju, Korea
| | - Ji Hyung Park
- Department of Biomedical Engineering, Institute of Medical Engineering and Yonsei-Fraunhofer Medical Device Lab, Yonsei University, Wonju, Korea
| | - Jin Yeul Ma
- Korean Medicine-Based Herbal Drug Development Group, Korea Institute of Oriental Medicine, Daejeon, Korea
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Nekova TS, Kneitz S, Einsele H, Stuhler G. Silencing of Dicer1 temporally separates pro- and anti-apoptotic signaling and confers susceptibility to chemotherapy in p53 mutated cells. Cell Cycle 2014; 13:2192-8. [PMID: 24846461 DOI: 10.4161/cc.29216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
miRNAs are critically implicated in the initiation process of and progression through cancerogenesis. The mechanisms, however, by which miRNAs interfere with the signalosomes of human cancer cells, are still obscure. We utilized the p53-mutated human keratinocyte cell line HACAT to investigate the biological significance and extent to which miRNAs regulate proliferation, cell growth, and apoptosis in transformed phenotypes. Silencing of the miRNA-processing enzyme Dicer1 resulted in cell cycle arrest at the G1/S border, along with restoration of CDK inhibitor p21(CIP)expression. Employing a cell cycle-wide phospho-proteomic approach, we detected neglectable changes in abundance and schedule of overall and cell cycle periodic protein expression despite cell cycle arrest of Dicer1-depleted cells. Instead, we found substantially delayed post-translational modifications of some, but not all, signaling nodes. Phospho-site-specific analyses revealed that pro-apoptotic information elicited by Myc, β-catenin, and other mitotic pathways early in G1 are absorbed and balanced by anti-apoptotic signaling from AKT and NFκB in Dicer1-competent cells. The absence of regulatory miRNAs, however, led to a substantial delay of anti-apoptotic signaling, leaving pro-apoptotic stress unbalanced in Dicer1-deprived cells. We here show that this temporal separation of pro- and anti-apoptotic signaling induced by inhibition of Dicer1 is synergistic and synthetic lethal to low-dose 5-FU chemotherapy in p53-mutated HACAT cells. The findings reported here contribute to the understanding of the complex interactions of miRNAs with the signalosom of transformed phenotypes and may help to design novel strategies to fight cancer.
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Affiliation(s)
- Tatyana S Nekova
- Department of Internal Medicine II; Julius-Maximilians University; Wuerzburg, Germany
| | - Susanne Kneitz
- Physiological Chemistry I; Biocenter; Julius-Maximilians University; Wuerzburg, Germany
| | - Hermann Einsele
- Department of Internal Medicine II; Julius-Maximilians University; Wuerzburg, Germany
| | - Gernot Stuhler
- Department of Internal Medicine II; Julius-Maximilians University; Wuerzburg, Germany
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GSK3β promotes the differentiation of oligodendrocyte precursor cells via β-catenin-mediated transcriptional regulation. Mol Neurobiol 2014; 50:507-19. [PMID: 24691545 DOI: 10.1007/s12035-014-8678-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 03/11/2014] [Indexed: 12/24/2022]
Abstract
Oligodendrocytes are generated by the differentiation and maturation of oligodendrocyte precursor cells (OPCs). The failure of OPC differentiation is a major cause of demyelinating diseases; thus, identifying the molecular mechanisms that affect OPC differentiation is critical for understanding the myelination process and repairing after demyelination. Although prevailing evidence shows that OPC differentiation is a highly coordinated process controlled by multiple extrinsic and intrinsic factors, such as growth factors, axon signals, and transcription factors, the intracellular signaling in OPC differentiation is still unclear. Here, we showed that glycogen synthase kinase 3β (GSK3β) is an essential positive modulator of OPC differentiation. Both pharmacologic inhibition and knockdown of GSK3β remarkably suppressed OPC differentiation. Terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling assays and Ki67 staining showed that the effect of GSK3β on OPC differentiation was not via cell death. Conversely, activated GSK3β was sufficient to promote OPC differentiation. Our results also demonstrated that the transcription of myelin genes was regulated by GSK3β inhibition, accompanying accumulated nuclear β-catenin, and reduced the expression of transcriptional factors that are relevant to the expression of myelin genes. Taken together, our study identified GSK3β as a profound positive regulator of OPC differentiation, suggesting that GSK3β may contribute to the inefficient regeneration of oligodendrocytes and myelin repair after demyelination.
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Yan HQ, Shin SS, Ma X, Li Y, Dixon CE. Differential effect of traumatic brain injury on the nuclear factor of activated T Cells C3 and C4 isoforms in the rat hippocampus. Brain Res 2013; 1548:63-72. [PMID: 24389074 DOI: 10.1016/j.brainres.2013.12.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 12/20/2013] [Accepted: 12/23/2013] [Indexed: 10/25/2022]
Abstract
The interaction between the phosphatase calcineurin and transcription factor nuclear factor of activated T cells (NFAT) plays an important role numerous signaling and the regulatory events. Although NFAT is mostly known for its transcription function in the immune system, NFAT also has essential functions even in the central nervous system (CNS). The effects of traumatic brain injury (TBI) on NFAT are currently unknown. To determine if there is an alteration in NFAT after TBI, we examined NFATc3 and c4 levels at 6 h, 1 day, 1 week, 2 weeks and 4 weeks post injury. Rats were anesthetized and surgically prepared for controlled cortical impact (CCI) injury or sham surgery. Semi-quantitative measurements of NFATc3 and c4 in the hippocampal homogenates from injured and sham rats sacrificed at the appropriate time after injury were assessed using Western blot analysis. After TBI insult, in the hippocampus ipsilateral to the injury, NFATc3 expression levels were decreased both in the cytoplasmic and nuclear fractions. However, NFATc4 expression levels were increased in the cytoplasmic fraction but decreased in the nuclear fraction. Double labeling (with NeuN and GFAP) immunohistochemistry revealed that NFATc3 was expressed in subset of astrocytes and NFATc4 was expressed primarily in neurons. These differential responses in NFATc3 and c4 expression after TBI insult may indicate long-term changes in hippocampal excitability and may contribute to behavioral deficits. Further study is warranted to illustrate the role of NFATc3 and c4 in the setting of TBI.
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Affiliation(s)
- Hong Q Yan
- Department of Neurological Surgery, Brain Trauma Research Center, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - Samuel S Shin
- Department of Neurological Surgery, Brain Trauma Research Center, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - Xiecheng Ma
- Department of Neurological Surgery, Brain Trauma Research Center, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - Youming Li
- Department of Neurological Surgery, Brain Trauma Research Center, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - C Edward Dixon
- Department of Neurological Surgery, Brain Trauma Research Center, University of Pittsburgh, Pittsburgh, Pennsylvania 15260.,Veterans Affairs Pittsburgh Healthcare System Pittsburgh, PA 15240
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Drawnel FM, Archer CR, Roderick HL. The role of the paracrine/autocrine mediator endothelin-1 in regulation of cardiac contractility and growth. Br J Pharmacol 2013; 168:296-317. [PMID: 22946456 DOI: 10.1111/j.1476-5381.2012.02195.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2012] [Revised: 08/23/2012] [Accepted: 08/28/2012] [Indexed: 12/20/2022] Open
Abstract
UNLABELLED Endothelin-1 (ET-1) is a critical autocrine and paracrine regulator of cardiac physiology and pathology. Produced locally within the myocardium in response to diverse mechanical and neurohormonal stimuli, ET-1 acutely modulates cardiac contractility. During pathological cardiovascular conditions such as ischaemia, left ventricular hypertrophy and heart failure, myocyte expression and activity of the entire ET-1 system is enhanced, allowing the peptide to both initiate and maintain maladaptive cellular responses. Both the acute and chronic effects of ET-1 are dependent on the activation of intracellular signalling pathways, regulated by the inositol-trisphosphate and diacylglycerol produced upon activation of the ET(A) receptor. Subsequent stimulation of protein kinases C and D, calmodulin-dependent kinase II, calcineurin and MAPKs modifies the systolic calcium transient, myofibril function and the activity of transcription factors that coordinate cellular remodelling. The precise nature of the cellular response to ET-1 is governed by the timing, localization and context of such signals, allowing the peptide to regulate both cardiomyocyte physiology and instigate disease. LINKED ARTICLES This article is part of a themed section on Endothelin. To view the other articles in this section visit http://dx.doi.org/10.1111/bph.2013.168.issue-1.
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Affiliation(s)
- Faye M Drawnel
- Babraham Research Campus, Babraham Institute, Cambridge, UK
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Mikami N, Miyagi Y, Sueda K, Takatsuji M, Fukada SI, Yamamoto H, Tsujikawa K. Calcitonin gene-related peptide and cyclic adenosine 5'-monophosphate/protein kinase A pathway promote IL-9 production in Th9 differentiation process. THE JOURNAL OF IMMUNOLOGY 2013; 190:4046-55. [PMID: 23509367 DOI: 10.4049/jimmunol.1203102] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Th9 cells are a novel Th cell subset that produces IL-9 and is involved in type I hypersensitivity such as airway inflammation. Although its critical roles in asthma have attracted interest, the physiological regulatory mechanisms of Th9 cell differentiation and function are largely unknown. Asthma is easily affected by psychological factors. Therefore, we investigated one of the physiological mediators derived from the nervous system, calcitonin gene-related peptide (CGRP), in asthma and Th9 cells because CGRP and activation of the cAMP/protein kinase A (PKA) pathway by CGRP are known to be important regulators in several immune responses and allergic diseases. In this study, we demonstrated that the CGRP/cAMP/PKA pathway promotes IL-9 production via NFATc2 activation by PKA-dependent glycogen synthase kinase-3β inactivation. Moreover, CGRP also induces the expression of PU.1, a critical transcriptional factor in Th9 cells, which depends on PKA, but not NFATc2. Additionally, we demonstrated the physiological importance of CGRP in IL-9 production and Th9 differentiation using an OVA-induced airway inflammation model and T cell-specific CGRP receptor-deficient mice. The present study revealed a novel regulatory mechanism comprising G protein-coupled receptor ligands and nervous system-derived substances in Th9 cell differentiation and type I hypersensitivity.
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Affiliation(s)
- Norihisa Mikami
- Laboratory of Molecular and Cellular Physiology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan
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