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Wu S, Zou Y, Tan X, Yang S, Chen T, Zhang J, Xu X, Wang F, Li W. The molecular mechanisms of peptidyl-prolyl cis/trans isomerase Pin1 and its relevance to kidney disease. Front Pharmacol 2024; 15:1373446. [PMID: 38711994 PMCID: PMC11070514 DOI: 10.3389/fphar.2024.1373446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 03/26/2024] [Indexed: 05/08/2024] Open
Abstract
Pin1 is a member of the peptidyl-prolyl cis/trans isomerase subfamily and is widely expressed in various cell types and tissues. Alterations in Pin1 expression levels play pivotal roles in both physiological processes and multiple pathological conditions, especially in the onset and progression of kidney diseases. Herein, we present an overview of the role of Pin1 in the regulation of fibrosis, oxidative stress, and autophagy. It plays a significant role in various kidney diseases including Renal I/R injury, chronic kidney disease with secondary hyperparathyroidism, diabetic nephropathy, renal fibrosis, and renal cell carcinoma. The representative therapeutic agent Juglone has emerged as a potential treatment for inhibiting Pin1 activity and mitigating kidney disease. Understanding the role of Pin1 in kidney diseases is expected to provide new insights into innovative therapeutic interventions and strategies. Consequently, this review delves into the molecular mechanisms of Pin1 and its relevance in kidney disease, paving the way for novel therapeutic approaches.
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Affiliation(s)
- Shukun Wu
- Department of Nephrology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Yurong Zou
- Department of Nephrology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Xiaoqiu Tan
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Shuang Yang
- Department of Nephrology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Southwest Medical University, Luzhou, China
| | - Tangting Chen
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Jiong Zhang
- Department of Nephrology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Xingli Xu
- State Key Laboratory for Innovation and Transformation of Luobing Theory, Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
- Ultrasound in Cardiac Electrophysiology and Biomechanics Key Laboratory of Sichuan Province, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Fang Wang
- Department of Nephrology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Wei Li
- Department of Emergency Surgery, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
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2
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Leavenworth JD, Yusuf N, Hassan Q. K-Homology Type Splicing Regulatory Protein: Mechanism of Action in Cancer and Immune Disorders. Crit Rev Eukaryot Gene Expr 2024; 34:75-87. [PMID: 37824394 PMCID: PMC11003564 DOI: 10.1615/critreveukaryotgeneexpr.2023048085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
K homology-type splicing regulatory protein (KSRP) is emerging as a key player in cancer biology, and immunology. As a single-strand nucleic acid binding protein it functions in both transcriptional and post-transcriptional regulation, while facilitating multiple stages of RNA metabolism to affect proliferation and control cell fate. However, it must interact with other proteins to determine the fate of its bound substrate. Here we provide an minireview of this important regulatory protein and describe its complex subcellular functions to affect RNA metabolism, stability, miRNA biogenesis and maturation, stress granule function, metastasis, and inflammatory processes.
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Affiliation(s)
- Jonathan D. Leavenworth
- Department of Oral and Maxillofacial Surgery, Institute of Oral Health Research, School of Dentistry, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Nabiha Yusuf
- Department of Dermatology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Quamarul Hassan
- Department of Oral and Maxillofacial Surgery, Institute of Oral Health Research, School of Dentistry, University of Alabama at Birmingham, Birmingham, AL, USA
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3
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Mace ML, Lewin E. Frontiers in Bone Metabolism and Disorder in Chronic Kidney Disease. Metabolites 2023; 13:1034. [PMID: 37887359 PMCID: PMC10608583 DOI: 10.3390/metabo13101034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/28/2023] Open
Abstract
Chronic Kidney Disease (CKD) is a progressive condition that affects 10-15% of the adult population, a prevalence expected to increase worldwide [...].
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Affiliation(s)
- Maria L. Mace
- Department of Nephrology, Rigshospitalet, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Ewa Lewin
- Department of Nephrology, Herlev Hospital, University of Copenhagen, 2100 Copenhagen, Denmark;
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4
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Bhattarai PY, Kim G, Lim SC, Mariappan R, Ohn T, Choi HS. METTL3 stabilization by PIN1 promotes breast tumorigenesis via enhanced m 6A-dependent translation. Oncogene 2023; 42:1010-1023. [PMID: 36755057 DOI: 10.1038/s41388-023-02617-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 01/26/2023] [Accepted: 01/30/2023] [Indexed: 02/10/2023]
Abstract
Methyltransferase-like 3 (METTL3) is the catalytic subunit of the N6-adenosine methyltransferase complex responsible for N6-methyladenosine (m6A) modification of mRNA in mammalian cells. Although METTL3 expression is increased in several cancers, the regulatory mechanisms are unclear. We explored the regulatory roles of peptidyl-prolyl cis-trans isomerase NIMA-interacting 1 (PIN1) in METTL3 stability and m6A modification of mRNA. PIN1 interacted with METTL3 and prevented its ubiquitin-dependent proteasomal and lysosomal degradation. It stabilized METTL3, which increased the m6A modification of transcriptional coactivator with PDZ-binding motif (TAZ) and epidermal growth factor receptor (EGFR) mRNA, resulting in their efficient translation. PIN1 knockout altered the distribution of TAZ and EGFR mRNA from polysomes into monosomes. Inhibition of MEK1/2 kinases and PIN1 destabilized METTL3, which impeded breast cancer cell proliferation and induced cell cycle arrest at the G0/G1 phases. METTL3 knockout reduced PIN1 overexpression-induced colony formation in MCF7 cells and enhanced tumor growth in 4T1 cells in an orthotopic mouse model. In clinical settings, METTL3 expression significantly increased with tumor progression and was positively correlated with PIN1 expression in breast cancer tissues. Thus, PIN1 plays a regulatory role in mRNA translation, and the PIN1/METTL3 axis may be an alternative therapeutic target in breast cancer.
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Affiliation(s)
| | - Garam Kim
- College of Pharmacy, Chosun University, Gwangju, 61452, Republic of Korea
| | - Sung-Chul Lim
- Department of Pathology, School of Medicine, Chosun University, Gwangju, 61452, Republic of Korea
| | - Ramesh Mariappan
- Department of Cellular and Molecular Medicine, College of Medicine, Chosun University, Gwangju, 61452, Republic of Korea
| | - Takbum Ohn
- Department of Cellular and Molecular Medicine, College of Medicine, Chosun University, Gwangju, 61452, Republic of Korea
| | - Hong Seok Choi
- College of Pharmacy, Chosun University, Gwangju, 61452, Republic of Korea.
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5
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Bover J, Trinidad P, Jara A, Soler-Majoral J, Martín-Malo A, Torres A, Frazão J, Ureña P, Dusso A, Arana C, Graterol F, Romero-González G, Troya M, Samaniego D, D'Marco L, Valdivielso JM, Fernández E, Arenas MD, Torregrosa V, Navarro-González JF, Lloret MJ, Ballarín JA, Bosch RJ, Górriz JL, de Francisco A, Gutiérrez O, Ara J, Felsenfeld A, Canalejo A, Almadén Y. Silver jubilee: 25 years of the first demonstration of the direct effect of phosphate on the parathyroid cell. Nefrologia 2022; 42:645-655. [PMID: 36925324 DOI: 10.1016/j.nefroe.2023.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 12/30/2021] [Indexed: 06/18/2023] Open
Abstract
Although phosphorus is an essential element for life, it is not found in nature in its native state but rather combined in the form of inorganic phosphates (PO43-), with tightly regulated plasma levels that are associated with deleterious effects and mortality when these are out of bounds. The growing interest in the accumulation of PO43- in human pathophysiology originated in its attributed role in the pathogenesis of secondary hyperparathyroidism (SHPT) in chronic kidney disease. In this article, we review the mechanisms by which this effect was justified and we commemorate the important contribution of a Spanish group led by Dr. M. Rodríguez, just 25 years ago, when they first demonstrated the direct effect of PO43- on the regulation of the synthesis and secretion of parathyroid hormone by maintaining the structural integrity of the parathyroid glands in their original experimental model. In addition to demonstrating the importance of arachidonic acid (AA) and the phospholipase A2-AA pathway as a mediator of parathyroid gland response, these findings were predecessors of the recent description of the important role of PO43- on the activity of the calcium sensor-receptor, and also fueled various lines of research on the importance of PO43- overload not only for the pathophysiology of SHPT but also in its systemic pathogenic role.
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Affiliation(s)
- Jordi Bover
- Servicio de Nefrología, Hospital Universitario Germans Trias i Pujol, RICORS, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), Universitat Autònoma de Barcelona, Badalona (Barcelona), Spain.
| | - Pedro Trinidad
- Departamento de Nefrología, HECMN siglo XXI, IMSS, Ciudad de México, México
| | - Aquiles Jara
- Departamento de Nefrología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jordi Soler-Majoral
- Servicio de Nefrología, Hospital Universitario Germans Trias i Pujol, RICORS, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), Universitat Autònoma de Barcelona, Badalona (Barcelona), Spain
| | - Alejandro Martín-Malo
- Unidad de Gestión Clinica Nefrología, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Hospital Universitario Reina Sofía, Universidad de Córdoba, España. Red Nacional de Investigación en Nefrología (REDinREN), Instituto de Salud Carlos III, Spain
| | - Armando Torres
- Servicio de Nefrología, Hospital Universitario de Canarias, Instituto de Tecnologías Biomédicas, Universidad de La Laguna, Tenerife, Spain
| | - João Frazão
- Department of Nephrology, Centro Hospitalar Universitário São João, Institute for Innovation and Health Research (I3S), Institute of Biomedical Engineering (INEB), Nephrology and Infectious Diseases Research Group, University of Porto, Porto, Portugal
| | - Pablo Ureña
- AURA Nord Saint Ouen Dialysis Service. Saint Ouen, France and Service d'Explorations Fonctionnelles Rénales, Hôpital Necker, Université Paris V, René Descartes, Paris, France
| | - Adriana Dusso
- Division of Endocrinology, Metabolism and Lipid Research, Washington University School of Medicine, St Louis, MO, USA
| | - Carolt Arana
- Departamento de Nefrología y Trasplante Renal, Hospital Clínic, Barcelona, España
| | - Fredzzia Graterol
- Servicio de Nefrología, Hospital Universitario Germans Trias i Pujol, RICORS, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), Universitat Autònoma de Barcelona, Badalona (Barcelona), Spain
| | - Gregorio Romero-González
- Servicio de Nefrología, Hospital Universitario Germans Trias i Pujol, RICORS, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), Universitat Autònoma de Barcelona, Badalona (Barcelona), Spain
| | - Maribel Troya
- Servicio de Nefrología, Hospital Universitario Germans Trias i Pujol, RICORS, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), Universitat Autònoma de Barcelona, Badalona (Barcelona), Spain
| | - Diana Samaniego
- Servicio de Nefrología, Hospital Universitario Germans Trias i Pujol, RICORS, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), Universitat Autònoma de Barcelona, Badalona (Barcelona), Spain
| | - Luis D'Marco
- CEU Cardenal Herrera University, Valencia, Spain
| | - José Manuel Valdivielso
- Vascular and Renal Translational Research Group, Biomedical Research Institute, IRBLLEIDA, Lleida, España. Red Nacional de Investigación en Nefrología (REDinREN, RETIC), Instituto de Salud Carlos III, Spain
| | - Elvira Fernández
- Vascular and Renal Translational Research Group, Biomedical Research Institute, IRBLLEIDA, Lleida, España. Red Nacional de Investigación en Nefrología (REDinREN, RETIC), Instituto de Salud Carlos III, Spain; Grupo de Investigación Traslacional Vascular y Renal, Fundación Renal Jaume Arnó, Lleida, Spain
| | | | - Vicente Torregrosa
- Departamento de Nefrología y Trasplante Renal, Hospital Clínic, Barcelona, España
| | - Juan F Navarro-González
- Unidad de Investigación y Servicio de Nefrología, Hospital Universitario Nuestra Señora de la Candelaria, Instituto Universitario de Tecnologías Biomédicas, Universidad de la Laguna, Santa Cruz de Tenerife, España. Red Nacional de Investigación en Nefrología (REDinREN, RICORS), Instituto de Salud Carlos III, Spain
| | - María Jesús Lloret
- Servicio de Nefrología, Fundació Puigvert, IIB Sant Pau, Barcelona, Spain
| | - J A Ballarín
- Servicio de Nefrología, Fundació Puigvert, IIB Sant Pau, Barcelona, Spain
| | - Ricardo J Bosch
- Unidad de Fisiología, Departamento de Biología de Sistemas, Facultad de Medicina, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
| | - José L Górriz
- Servicio de Nefrología, Hospital Clínico Universitario, INCLIVA, Universidad de Valencia, Valencia, Spain
| | | | - Orlando Gutiérrez
- Division of Nephrology, Department of Medicine, Universidad de Alabama en Birmingham, Birmingham USA
| | - Jordi Ara
- Servicio de Nefrología, Hospital Universitario Germans Trias i Pujol, RICORS, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), Universitat Autònoma de Barcelona, Badalona (Barcelona), Spain
| | - Arnold Felsenfeld
- Department of Medicine, Veterans Affairs Greater Los Angeles Healthcare System and David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Antonio Canalejo
- Departamento de Ciencias Integradas/Centro de Investigación RENSMA, Facultad de Ciencias Experimentales, Universidad de Huelva. Huelva, Spain
| | - Yolanda Almadén
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Hospital Universitario Reina Sofía, Universidad de Córdoba, Córdoba, Spain
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Hassan A, Pollak YE, Kilav-Levin R, Silver J, London N, Nechama M, Ben-Dov IZ, Naveh-Many T. Kidney Failure Alters Parathyroid Pin1 Phosphorylation and Parathyroid Hormone mRNA-Binding Proteins, Leading to Secondary Hyperparathyroidism. J Am Soc Nephrol 2022; 33:1677-1693. [PMID: 35961788 PMCID: PMC9529182 DOI: 10.1681/asn.2022020197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 06/01/2022] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Secondary hyperparathyroidism (SHP) is a common complication of CKD that increases morbidity and mortality. In experimental SHP, increased parathyroid hormone (PTH) expression is due to enhanced PTH mRNA stability, mediated by changes in its interaction with stabilizing AUF1 and destabilizing KSRP. The isomerase Pin1 leads to KSRP dephosphorylation, but in SHP parathyroid Pin1 activity is decreased and hence phosphorylated KSRP fails to bind PTH mRNA, resulting in high PTH mRNA stability and levels. The up- and downstream mechanisms by which CKD stimulates the parathyroid glands remain elusive. METHODS Adenine-rich high-phosphate diets induced CKD in rats and mice. Parathyroid organ cultures and transfected cells were incubated with Pin1 inhibitors for their effect on PTH expression. Mass spectrometry was performed on both parathyroid and PTH mRNA pulled-down proteins. RESULTS CKD led to changes in rat parathyroid proteome and phosphoproteome profiles, including KSRP phosphorylation at Pin1 target sites. Furthermore, both acute and chronic kidney failure led to parathyroid-specific Pin1 Ser16 and Ser71 phosphorylation, which disrupts Pin1 activity. Pharmacologic Pin1 inhibition, which mimics the decreased Pin1 activity in SHP, increased PTH expression ex vivo in parathyroid glands in culture and in transfected cells through the PTH mRNA-protein interaction element and KSRP phosphorylation. CONCLUSIONS Kidney failure leads to loss of parathyroid Pin1 activity by inducing Pin1 phosphorylation. This predisposes parathyroids to increase PTH production through impaired PTH mRNA decay that is dependent on KSRP phosphorylation at Pin1-target motifs. Pin1 and KSRP phosphorylation and the Pin1-KSRP-PTH mRNA axis thus drive SHP.
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Affiliation(s)
- Alia Hassan
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah Hebrew University Medical Center and Faculty of Medicine, Jerusalem, Israel
| | - Yael E. Pollak
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah Hebrew University Medical Center and Faculty of Medicine, Jerusalem, Israel
| | - Rachel Kilav-Levin
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah Hebrew University Medical Center and Faculty of Medicine, Jerusalem, Israel
- School of Nursing, Jerusalem College of Technology, Faculty of Life and Health Sciences, Jerusalem, Israel
| | - Justin Silver
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah Hebrew University Medical Center and Faculty of Medicine, Jerusalem, Israel
| | - Nir London
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Morris Nechama
- Department of Pediatric Nephrology, Hadassah Hebrew University Medical Center and Faculty of Medicine, Jerusalem, Israel
- Wohl Institute for Translational Medicine, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - Iddo Z. Ben-Dov
- Laboratory of Medical Transcriptomics, Nephrology Services, Hadassah Hebrew University Medical Center and Faculty of Medicine, Jerusalem, Israel
| | - Tally Naveh-Many
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah Hebrew University Medical Center and Faculty of Medicine, Jerusalem, Israel
- Wohl Institute for Translational Medicine, Hadassah Hebrew University Medical Center, Jerusalem, Israel
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7
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Hassan A, Khalaily N, Kilav-Levin R, Nechama M, Volovelsky O, Silver J, Naveh-Many T. Molecular Mechanisms of Parathyroid Disorders in Chronic Kidney Disease. Metabolites 2022; 12:metabo12020111. [PMID: 35208186 PMCID: PMC8878033 DOI: 10.3390/metabo12020111] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/17/2022] [Accepted: 01/20/2022] [Indexed: 01/27/2023] Open
Abstract
Secondary hyperparathyroidism (SHP) is a common complication of chronic kidney disease (CKD) that induces morbidity and mortality in patients. How CKD stimulates the parathyroid to increase parathyroid hormone (PTH) secretion, gene expression and cell proliferation remains an open question. In experimental SHP, the increased PTH gene expression is post-transcriptional and mediated by PTH mRNA–protein interactions that promote PTH mRNA stability. These interactions are orchestrated by the isomerase Pin1. Pin1 participates in conformational change-based regulation of target proteins, including mRNA-binding proteins. In SHP, Pin1 isomerase activity is decreased, and thus, the Pin1 target and PTH mRNA destabilizing protein KSRP fails to bind PTH mRNA, increasing PTH mRNA stability and levels. An additional level of post-transcriptional regulation is mediated by microRNA (miRNA). Mice with parathyroid-specific knockout of Dicer, which facilitates the final step in miRNA maturation, lack parathyroid miRNAs but have normal PTH and calcium levels. Surprisingly, these mice fail to increase serum PTH in response to hypocalcemia or uremia, indicating a role for miRNAs in parathyroid stimulation. SHP often leads to parathyroid hyperplasia. Reduced expressions of parathyroid regulating receptors, activation of transforming growth factor α-epidermal growth factor receptor, cyclooxygenase 2-prostaglandin E2 and mTOR signaling all contribute to the enhanced parathyroid cell proliferation. Inhibition of mTOR by rapamycin prevents and corrects the increased parathyroid cell proliferation of SHP. This review summarizes the current knowledge on the mechanisms that stimulate the parathyroid cell at multiple levels in SHP.
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Affiliation(s)
- Alia Hassan
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah—Hebrew University Medical Center, Jerusalem 91120, Israel; (A.H.); (N.K.); (R.K.-L.); (J.S.)
| | - Nareman Khalaily
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah—Hebrew University Medical Center, Jerusalem 91120, Israel; (A.H.); (N.K.); (R.K.-L.); (J.S.)
| | - Rachel Kilav-Levin
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah—Hebrew University Medical Center, Jerusalem 91120, Israel; (A.H.); (N.K.); (R.K.-L.); (J.S.)
- Nursing, Jerusalem College of Technology, Jerusalem 91160, Israel
| | - Morris Nechama
- Pediatric Nephrology, Hadassah—Hebrew University Medical Center, Jerusalem 91120, Israel; (M.N.); (O.V.)
- The Wohl Institute for Translational Medicine, Hadassah—Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Oded Volovelsky
- Pediatric Nephrology, Hadassah—Hebrew University Medical Center, Jerusalem 91120, Israel; (M.N.); (O.V.)
- The Wohl Institute for Translational Medicine, Hadassah—Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Justin Silver
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah—Hebrew University Medical Center, Jerusalem 91120, Israel; (A.H.); (N.K.); (R.K.-L.); (J.S.)
| | - Tally Naveh-Many
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah—Hebrew University Medical Center, Jerusalem 91120, Israel; (A.H.); (N.K.); (R.K.-L.); (J.S.)
- The Wohl Institute for Translational Medicine, Hadassah—Hebrew University Medical Center, Jerusalem 91120, Israel
- Correspondence:
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Bodas de plata: 25 años de la primera demostración del efecto directo del fósforo en la célula paratiroidea. Nefrologia 2022. [DOI: 10.1016/j.nefro.2021.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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9
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Patel DD, Parchwani D, Vachhani U, Parchwani T, Raghavani P, Rajput A, Dholariya S, Singh R. A Molecular Insight of the Role of PIN-1 Promoter Polymorphism (− 667C > T; rs2233679) in Chronic Kidney Disease Patients with Secondary Hyperparathyroidism. Indian J Clin Biochem 2021; 37:319-327. [DOI: 10.1007/s12291-021-00997-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 07/26/2021] [Indexed: 10/20/2022]
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10
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Velázquez-Cruz A, Baños-Jaime B, Díaz-Quintana A, De la Rosa MA, Díaz-Moreno I. Post-translational Control of RNA-Binding Proteins and Disease-Related Dysregulation. Front Mol Biosci 2021; 8:658852. [PMID: 33987205 PMCID: PMC8111222 DOI: 10.3389/fmolb.2021.658852] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/22/2021] [Indexed: 12/20/2022] Open
Abstract
Cell signaling mechanisms modulate gene expression in response to internal and external stimuli. Cellular adaptation requires a precise and coordinated regulation of the transcription and translation processes. The post-transcriptional control of mRNA metabolism is mediated by the so-called RNA-binding proteins (RBPs), which assemble with specific transcripts forming messenger ribonucleoprotein particles of highly dynamic composition. RBPs constitute a class of trans-acting regulatory proteins with affinity for certain consensus elements present in mRNA molecules. However, these regulators are subjected to post-translational modifications (PTMs) that constantly adjust their activity to maintain cell homeostasis. PTMs can dramatically change the subcellular localization, the binding affinity for RNA and protein partners, and the turnover rate of RBPs. Moreover, the ability of many RBPs to undergo phase transition and/or their recruitment to previously formed membrane-less organelles, such as stress granules, is also regulated by specific PTMs. Interestingly, the dysregulation of PTMs in RBPs has been associated with the pathophysiology of many different diseases. Abnormal PTM patterns can lead to the distortion of the physiological role of RBPs due to mislocalization, loss or gain of function, and/or accelerated or disrupted degradation. This Mini Review offers a broad overview of the post-translational regulation of selected RBPs and the involvement of their dysregulation in neurodegenerative disorders, cancer and other pathologies.
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Affiliation(s)
- Alejandro Velázquez-Cruz
- Instituto de Investigaciones Químicas, Centro de Investigaciones Científicas Isla de la Cartuja, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Seville, Spain
| | - Blanca Baños-Jaime
- Instituto de Investigaciones Químicas, Centro de Investigaciones Científicas Isla de la Cartuja, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Seville, Spain
| | - Antonio Díaz-Quintana
- Instituto de Investigaciones Químicas, Centro de Investigaciones Científicas Isla de la Cartuja, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Seville, Spain
| | - Miguel A De la Rosa
- Instituto de Investigaciones Químicas, Centro de Investigaciones Científicas Isla de la Cartuja, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Seville, Spain
| | - Irene Díaz-Moreno
- Instituto de Investigaciones Químicas, Centro de Investigaciones Científicas Isla de la Cartuja, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Seville, Spain
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Oster M, Reyer H, Gerlinger C, Trakooljul N, Siengdee P, Keiler J, Ponsuksili S, Wolf P, Wimmers K. mRNA Profiles of Porcine Parathyroid Glands Following Variable Phosphorus Supplies throughout Fetal and Postnatal Life. Biomedicines 2021; 9:biomedicines9050454. [PMID: 33922173 PMCID: PMC8146947 DOI: 10.3390/biomedicines9050454] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/16/2021] [Accepted: 04/18/2021] [Indexed: 11/16/2022] Open
Abstract
Knowledge of gene expression profiles reflecting functional features and specific responsiveness of parathyroid glands (PTGs) contributes to understanding mineral homeostasis and parathyroid function in healthy and diseased conditions. The study aims to reveal effector molecules driving the maintenance of phosphorus (P) homeostasis and parathyroid hormone (PTH) responsiveness to variable P supply throughout fetal and postnatal life. In this study, a long-term dietary intervention was performed by keeping pig offspring on distinct mineral P levels throughout fetal and postnatal life. Respective adaptation processes of P homeostasis were assessed in mRNA profiles of PTGs and serum minerals. RNA sequencing data and resulting molecular pathways of PTGs showed that the PTH abundance is very strictly controlled via e.g., PIN1, CaSR, MAfB, PLC and PKA signaling to regulate PTH expression, stability, and secretion. Additionally, the observed dietary effects on collagen expression indicate shifts in the ratio between connective tissue and parenchyma, thereby affecting cell-cell contacts as another line of PTH regulation. Taken together, the mRNA profiles of porcine PTGs reflect physiological responses in-vivo following variable dietary P supplies during fetal and postnatal life. The results serve to evaluate a long-term nutrition strategy with implications for improving the mineral balance in individuals with pathological disorders.
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Affiliation(s)
- Michael Oster
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany; (M.O.); (H.R.); (C.G.); (N.T.); (P.S.); (S.P.)
| | - Henry Reyer
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany; (M.O.); (H.R.); (C.G.); (N.T.); (P.S.); (S.P.)
| | - Christian Gerlinger
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany; (M.O.); (H.R.); (C.G.); (N.T.); (P.S.); (S.P.)
| | - Nares Trakooljul
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany; (M.O.); (H.R.); (C.G.); (N.T.); (P.S.); (S.P.)
| | - Puntita Siengdee
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany; (M.O.); (H.R.); (C.G.); (N.T.); (P.S.); (S.P.)
| | - Jonas Keiler
- Department of Anatomy, Rostock University Medical Center, 18057 Rostock, Germany;
| | - Siriluck Ponsuksili
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany; (M.O.); (H.R.); (C.G.); (N.T.); (P.S.); (S.P.)
| | - Petra Wolf
- Faculty of Agricultural and Environmental Sciences, University Rostock, 18059 Rostock, Germany;
| | - Klaus Wimmers
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany; (M.O.); (H.R.); (C.G.); (N.T.); (P.S.); (S.P.)
- Faculty of Agricultural and Environmental Sciences, University Rostock, 18059 Rostock, Germany;
- Correspondence: ; Tel.: +49-382-086-8600
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12
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Bozkurt E, Atay E, Pektaş G, Ertekin A, Vurmaz A, Korkmaz ÖA, Sadi G, Aslan E, Koca OH, Pektaş MB. Potential Anti-Tumor Activity of Kefir-Induced Juglone and Resveratrol Fractions Against Ehrlich Ascites Carcinoma-Bearing BALB/C Mice. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2021; 19:358-369. [PMID: 33680036 PMCID: PMC7758008 DOI: 10.22037/ijpr.2020.112993.14060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We investigated the potential influence of kefir-induced juglone and resveratrol fractions (JRK) against Ehrlich Ascites Carcinoma (EAC) bearing BALB/c male mice. Kefir yeast was grown in the cell culture supplemented with juglone and resveratrol (1:2). After 48 h incubation, JRK solution was applied (0.1 mL/day i.p.) to the EAC-bearing mice throughout five days. Molecular regulatory mechanisms of apoptotic and anti-apoptotic pathway components were evaluated in the plasma of mice and isolated EAC cells with ELISA, qRT-PCR, and immunocytchemical experiments. EAC-induced upregulation in Bcl-2 and downregulation in Caspase-3 were normalized with JRK in the plasma of mice. Additionally, JRK upregulated the expression levels of apoptotic Bax, p53, Caspase-3,8,9, and APAF-1 proteins together with BAX, CASPASE-8, and CASPASE-9 genes in isolated EAC cells. These changes were also associated with decreased expression levels of anti-apoptotic Bcl-2 and Bcl-xl proteins. Immunocytochemical studies also confirmed the activation of apoptotic pathways and repression of anti-apoptotic proteins in EAC cells with JRK treatment. JRK activates apoptotic pathway and inhibits anti-apoptotic genes and proteins in Ehrlich ascites carcinoma- bearing BALB/c mice that could be beneficial in cancer treatment.
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Affiliation(s)
- Erhan Bozkurt
- Department of Internal Medicine, Faculty of Medicine, Afyonkarahisar Health Sciences University, 03200, Afyonkarahisar, Turkey
| | - Emre Atay
- Department of Anatomy, Faculty of Medicine, Afyonkarahisar Health Sciences University, 03200, Afyonkarahisar, Turkey
| | - Gökhan Pektaş
- Department of Hematology, Faculty of Medicine, Mugla Sitki Kocman University, 48000, Muğla, Turkey
| | - Ayşe Ertekin
- Department of Emergency Medicine, Faculty of Medicine, Afyonkarahisar Health Sciences University, 03200, Afyonkarahisar, Turkey
| | - Ayhan Vurmaz
- Department of Medical Biochemistry, Faculty of Medicine, Afyonkarahisar Health Sciences University, 03200, Afyonkarahisar, Turkey
| | - Ömer Adil Korkmaz
- Departmentof Chemistry, Faculty of Arts and Sciences, Yildiz Technical University, 34220, Istanbul, Turkey
| | - Gökhan Sadi
- Departmentof Biology, Faculty of Science, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey
| | - Esra Aslan
- Department of Histology and Embryology, Faculty of Medicine, Afyonkarahisar Health Sciences University, 03200, Afyonkarahisar, Turkey
| | - Oğuz Han Koca
- Department of Biochemistry, Faculty of Medicine, Karabük University, 78020, Karabük, Turkey
| | - Mehmet Bilgehan Pektaş
- Department of Medical Pharmacology, Faculty of Medicine, Afyonkarahisar Health Sciences University, 03200, Afyonkarahisar, Turkey
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13
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Abstract
Phosphorus plays a vital role in diverse biological processes including intracellular signaling, membrane integrity, and skeletal biomineralization; therefore, the regulation of phosphorus homeostasis is essential to the well-being of the organism. Cells and whole organisms respond to changes in inorganic phosphorus (Pi) concentrations in their environment by adjusting Pi uptake and altering biochemical processes in cells (local effects) and distant organs (endocrine effects). Unicellular organisms, such as bacteria and yeast, express specific Pi-binding proteins on the plasma membrane that respond to changes in ambient Pi availability and transduce intracellular signals that regulate the expression of genes involved in cellular Pi uptake. Multicellular organisms, including humans, respond at a cellular level to adapt to changes in extracellular Pi concentrations and also have endocrine pathways which integrate signals from various organs (e.g., intestine, kidneys, parathyroid glands, bone) to regulate serum Pi concentrations and whole-body phosphorus balance. In mammals, alterations in the concentrations of extracellular Pi modulate type III sodium-phosphate cotransporter activity on the plasma membrane, and trigger changes in cellular function. In addition, elevated extracellular Pi induces activation of fibroblast growth factor receptor, Raf/mitogen-activated protein kinase/ERK kinase (MEK)/extracellular signal-regulated kinase (ERK) and Akt pathways, which modulate gene expression in various mammalian cell types. Excessive Pi exposure, especially in patients with chronic kidney disease, leads to endothelial dysfunction, accelerated vascular calcification, and impaired insulin secretion.
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Affiliation(s)
- Kittrawee Kritmetapak
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
- Division of Nephrology and Hypertension, Departments of Medicine, Biochemistry and Molecular Biology, Mayo Clinic, 200 First Street Southwest, Rochester, MN, 55902, USA
| | - Rajiv Kumar
- Division of Nephrology and Hypertension, Departments of Medicine, Biochemistry and Molecular Biology, Mayo Clinic, 200 First Street Southwest, Rochester, MN, 55902, USA.
- Nephrology Research, Medical Sciences 1-120, 200 First Street Southwest, Rochester, MN, 55902, USA.
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14
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Abstract
Parathyroid hormone is an essential regulator of extracellular calcium and phosphate. PTH enhances calcium reabsorption while inhibiting phosphate reabsorption in the kidneys, increases the synthesis of 1,25-dihydroxyvitamin D, which then increases gastrointestinal absorption of calcium, and increases bone resorption to increase calcium and phosphate. Parathyroid disease can be an isolated endocrine disorder or part of a complex syndrome. Genetic mutations can account for diseases of parathyroid gland formulation, dysregulation of parathyroid hormone synthesis or secretion, and destruction of the parathyroid glands. Over the years, a number of different options are available for the treatment of different types of parathyroid disease. Therapeutic options include surgical removal of hypersecreting parathyroid tissue, administration of parathyroid hormone, vitamin D, activated vitamin D, calcium, phosphate binders, calcium-sensing receptor, and vitamin D receptor activators to name a few. The accurate assessment of parathyroid hormone also provides essential biochemical information to properly diagnose parathyroid disease. Currently available immunoassays may overestimate or underestimate bioactive parathyroid hormone because of interferences from truncated parathyroid hormone fragments, phosphorylation of parathyroid hormone, and oxidation of amino acids of parathyroid hormone.
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Affiliation(s)
- Edward Ki Yun Leung
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, CA, United States; Department of Pathology, Keck School of Medicine of University of Southern California, Los Angeles, CA, United States.
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15
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Naveh-Many T, Volovelsky O. Parathyroid Cell Proliferation in Secondary Hyperparathyroidism of Chronic Kidney Disease. Int J Mol Sci 2020; 21:ijms21124332. [PMID: 32570711 PMCID: PMC7352987 DOI: 10.3390/ijms21124332] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 06/14/2020] [Accepted: 06/15/2020] [Indexed: 12/12/2022] Open
Abstract
Secondary hyperparathyroidism (SHP) is a common complication of chronic kidney disease (CKD) that correlates with morbidity and mortality in uremic patients. It is characterized by high serum parathyroid hormone (PTH) levels and impaired bone and mineral metabolism. The main mechanisms underlying SHP are increased PTH biosynthesis and secretion as well as increased glandular mass. The mechanisms leading to parathyroid cell proliferation in SHP are not fully understood. Reduced expressions of the receptors for calcium and vitamin D contribute to the disinhibition of parathyroid cell proliferation. Activation of transforming growth factor-α-epidermal growth factor receptor (TGF-α-EGFR), nuclear factor kappa B (NF-kB), and cyclooxygenase 2- prostaglandin E2 (Cox2-PGE2) signaling all correlate with parathyroid cell proliferation, underlining their roles in the development of SHP. In addition, the mammalian target of rapamycin (mTOR) pathway is activated in parathyroid glands of experimental SHP rats. Inhibition of mTOR by rapamycin prevents and corrects the increased parathyroid cell proliferation of SHP. Mice with parathyroid-specific deletion of all miRNAs have a muted increase in serum PTH and fail to increase parathyroid cell proliferation when challenged by CKD, suggesting that miRNA is also necessary for the development of SHP. This review summarizes the current knowledge on the mechanisms of parathyroid cell proliferation in SHP.
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Affiliation(s)
- Tally Naveh-Many
- Minerva Center for Calcium and Bone Metabolism, Nephrology Services, Hadassah Hebrew University Medical Center, Jerusalem 91120, Israel;
- The Wohl Institute for Translational Medicine, Hadassah Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Oded Volovelsky
- The Wohl Institute for Translational Medicine, Hadassah Hebrew University Medical Center, Jerusalem 91120, Israel
- Pediatric Nephrology Unit and Research Lab, Hadassah Hebrew University Medical Center, Jerusalem 91120, Israel
- Correspondence: ; Tel.: +972-26777213
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16
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Naveh-Many T, Silver J. Transcription factors that determine parathyroid development power PTH expression. Kidney Int 2020; 93:7-9. [PMID: 29291826 DOI: 10.1016/j.kint.2017.08.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 08/08/2017] [Accepted: 08/09/2017] [Indexed: 01/08/2023]
Abstract
Studies in patients with hypoparathyroidism and knockout mouse models have revealed key transcriptional cascades central for parathyroid organogenesis. Among the transcription factors essential for parathyroid development, Gata3, GCM2, and MafB, are expressed in the developing parathyroids as well as postnatally, implying that they also regulate parathyroid-specific gene expression and function in the adult. PTH gene expression is determined by transcriptional and posttranscriptional mechanisms. The study by Morito et al. demonstrates that MafB contributes to the stimulation of the parathyroid by hypocalcemia and uremia.
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Affiliation(s)
- Tally Naveh-Many
- Hadassah Hebrew University Medical Center, Jerusalem, Ein Karem, Israel.
| | - Justin Silver
- Hadassah Hebrew University Medical Center, Jerusalem, Ein Karem, Israel
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17
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Kilav-Levin R, Hassan A, Nechama M, Shilo V, Silver J, Ben-Dov IZ, Naveh-Many T. Post-transcriptional mechanisms regulating parathyroid hormone gene expression in secondary hyperparathyroidism. FEBS J 2020; 287:2903-2913. [PMID: 32191397 DOI: 10.1111/febs.15300] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 12/10/2019] [Accepted: 03/17/2020] [Indexed: 12/11/2022]
Abstract
Parathyroid hormone (PTH) regulates serum calcium levels and bone strength. Secondary hyperparathyroidism (SHP) is a common complication of chronic kidney disease (CKD) that correlates with morbidity and mortality. In experimental SHP, the increased PTH gene expression is due to increased PTH mRNA stability and is mediated by protein-PTH mRNA interactions. Adenosine-uridine-rich binding factor 1 (AUF1) stabilizes and K-homology splicing regulatory protein (KSRP) destabilizes PTH mRNA. The peptidyl-prolyl cis/trans isomerase Pin1 acts on target proteins, including mRNA-binding proteins. Pin1 leads to KSRP dephosphorylation, but in SHP, parathyroid Pin1 activity is decreased and phosphorylated KSRP fails to bind PTH mRNA, leading to increased PTH mRNA stability and levels. A further level of post-transcriptional regulation occurs through microRNA (miRNA). Dicer mediates the final step of miRNA maturation. Parathyroid-specific Dicer knockout mice that lack miRNAs in the parathyroid develop normally. Surprisingly, these mice fail to increase serum PTH in response to both hypocalcemia and CKD, indicating that parathyroid Dicer and miRNAs are essential for stimulation of the parathyroid. Human and rodent parathyroids share similar miRNA profiles that are altered in hyperparathyroidism. The evolutionary conservation of abundant miRNAs and their regulation in hyperparathyroidism indicate their significance in parathyroid physiology and pathophysiology. let-7 and miR-148 antagonism modifies PTH secretion in vivo and in vitro, suggesting roles for specific miRNAs in parathyroid function. This review summarizes the current knowledge on the post-transcriptional mechanisms of PTH gene expression in SHP and the central contribution of miRNAs to the high serum PTH levels of both primary hyperparathyroidism and SHP.
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Affiliation(s)
- Rachel Kilav-Levin
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah - Hebrew University Medical Center, Jerusalem, Israel.,Nursing, Jerusalem College of Technology, Israel
| | - Alia Hassan
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah - Hebrew University Medical Center, Jerusalem, Israel
| | - Morris Nechama
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah - Hebrew University Medical Center, Jerusalem, Israel.,Pediatric Nephrology, Hadassah - Hebrew University Medical Center, Jerusalem, Israel.,The Wohl Institute for Translational Medicine, Hadassah - Hebrew University Medical Center, Jerusalem, Israel
| | - Vitali Shilo
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah - Hebrew University Medical Center, Jerusalem, Israel
| | - Justin Silver
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah - Hebrew University Medical Center, Jerusalem, Israel
| | - Iddo Z Ben-Dov
- Laboratory of Medical Transcriptomics, Nephrology Services, Hadassah - Hebrew University Medical Center, Jerusalem, Israel
| | - Tally Naveh-Many
- Minerva Center for Bone and Mineral Research, Nephrology Services, Hadassah - Hebrew University Medical Center, Jerusalem, Israel.,The Wohl Institute for Translational Medicine, Hadassah - Hebrew University Medical Center, Jerusalem, Israel
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18
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Hu X, Chen LF. Pinning Down the Transcription: A Role for Peptidyl-Prolyl cis-trans Isomerase Pin1 in Gene Expression. Front Cell Dev Biol 2020; 8:179. [PMID: 32266261 PMCID: PMC7100383 DOI: 10.3389/fcell.2020.00179] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 03/04/2020] [Indexed: 12/14/2022] Open
Abstract
Pin1 is a peptidyl-prolyl cis-trans isomerase that specifically binds to a phosphorylated serine or threonine residue preceding a proline (pSer/Thr-Pro) motif and catalyzes the cis-trans isomerization of proline imidic peptide bond, resulting in conformational change of its substrates. Pin1 regulates many biological processes and is also involved in the development of human diseases, like cancer and neurological diseases. Many Pin1 substrates are transcription factors and transcription regulators, including RNA polymerase II (RNAPII) and factors associated with transcription initiation, elongation, termination and post-transcription mRNA decay. By changing the stability, subcellular localization, protein-protein or protein-DNA/RNA interactions of these transcription related proteins, Pin1 modulates the transcription of many genes related to cell proliferation, differentiation, apoptosis and immune response. Here, we will discuss how Pin regulates the properties of these transcription relevant factors for effective gene expression and how Pin1-mediated transcription contributes to the diverse pathophysiological functions of Pin1.
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Affiliation(s)
- Xiangming Hu
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Lin-Feng Chen
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL, United States.,Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
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19
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Prospects of Parathyroid Hormone in Therapeutic Intervention. Int J Pept Res Ther 2019. [DOI: 10.1007/s10989-018-9744-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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20
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Ahmad T, Suzuki YJ. Juglone in Oxidative Stress and Cell Signaling. Antioxidants (Basel) 2019; 8:antiox8040091. [PMID: 30959841 PMCID: PMC6523217 DOI: 10.3390/antiox8040091] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/23/2019] [Accepted: 04/01/2019] [Indexed: 12/22/2022] Open
Abstract
Juglone (5-hydroxyl-1,4-naphthoquinone) is a phenolic compound found in walnuts. Because of the antioxidant capacities of phenolic compounds, juglone may serve to combat oxidative stress, thereby protecting against the development of various diseases and aging processes. However, being a quinone molecule, juglone could also act as a redox cycling agent and produce reactive oxygen species. Such prooxidant properties of juglone may confer health effects, such as by killing cancer cells. Further, recent studies revealed that juglone influences cell signaling. Notably, juglone is an inhibitor of Pin1 (peptidyl-prolyl cis/trans isomerase) that could regulate phosphorylation of Tau, implicating potential effects of juglone in Alzheimer’s disease. Juglone also activates mitogen-activated protein kinases that could promote cell survival, thereby protecting against conditions such as cardiac injury. This review describes recent advances in the understanding of the effects and roles of juglone in oxidative stress and cell signaling.
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Affiliation(s)
- Taseer Ahmad
- College of Pharmacy, University of Sargodha, Sargodha, Punjab 40100, Pakistan.
| | - Yuichiro J Suzuki
- Department of Pharmacology and Physiology, Georgetown University Medical Center, Washington, DC 20007, USA.
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21
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Zannini A, Rustighi A, Campaner E, Del Sal G. Oncogenic Hijacking of the PIN1 Signaling Network. Front Oncol 2019; 9:94. [PMID: 30873382 PMCID: PMC6401644 DOI: 10.3389/fonc.2019.00094] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 02/01/2019] [Indexed: 12/18/2022] Open
Abstract
Cellular choices are determined by developmental and environmental stimuli through integrated signal transduction pathways. These critically depend on attainment of proper activation levels that in turn rely on post-translational modifications (PTMs) of single pathway members. Among these PTMs, post-phosphorylation prolyl-isomerization mediated by PIN1 represents a unique mechanism of spatial, temporal and quantitative control of signal transduction. Indeed PIN1 was shown to be crucial for determining activation levels of several pathways and biological outcomes downstream to a plethora of stimuli. Of note, studies performed in different model organisms and humans have shown that hormonal, nutrient, and oncogenic stimuli simultaneously affect both PIN1 activity and the pathways that depend on PIN1-mediated prolyl-isomerization, suggesting the existence of evolutionarily conserved molecular circuitries centered on this isomerase. This review focuses on molecular mechanisms and cellular processes like proliferation, metabolism, and stem cell fate, that are regulated by PIN1 in physiological conditions, discussing how these are subverted in and hijacked by cancer cells. Current status and open questions regarding the use of PIN1 as biomarker and target for cancer therapy as well as clinical development of PIN1 inhibitors are also addressed.
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Affiliation(s)
- Alessandro Zannini
- National Laboratory CIB, Trieste, Italy.,Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Alessandra Rustighi
- National Laboratory CIB, Trieste, Italy.,Department of Life Sciences, University of Trieste, Trieste, Italy
| | | | - Giannino Del Sal
- National Laboratory CIB, Trieste, Italy.,Department of Life Sciences, University of Trieste, Trieste, Italy.,IFOM - Istituto FIRC Oncologia Molecolare, Milan, Italy
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22
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Hidaka M, Okabe E, Hatakeyama K, Zook H, Uchida C, Uchida T. Fluorescent resonance energy transfer -based biosensor for detecting conformational changes of Pin1. Biochem Biophys Res Commun 2018; 505:399-404. [DOI: 10.1016/j.bbrc.2018.09.123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 09/19/2018] [Indexed: 01/27/2023]
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23
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Hidaka M, Kosaka K, Tsushima S, Uchida C, Takahashi K, Takahashi N, Tsubuki M, Hara Y, Uchida T. Food polyphenols targeting peptidyl prolyl cis/trans isomerase Pin1. Biochem Biophys Res Commun 2018; 499:681-687. [PMID: 29608894 DOI: 10.1016/j.bbrc.2018.03.212] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 03/28/2018] [Indexed: 10/17/2022]
Abstract
We searched for inhibitors against prolyl isomerase Pin1 in order to develop functional foods to prevent and cure various Pin1 related diseases such as cancer, diabetes, cardiovascular disease, Alzheimers's disease, and so on. We created a polyphenol library consisting of ingredients in healthy foods and beverages, since polyphenols like epigallocatechin gallate (EGCG) in green tea and 974B in brown algae had been identified as its Pin1 inhibitors. Several polyphenols such as EGCG derivatives, caffeic acid derivatives and tannic acid inhibited Pin1 activity. These results provide a first step in development of the functional foods and beverage targeting Pin1 and its related diseases.
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Affiliation(s)
- Masafumi Hidaka
- Molecular Enzymology, Department of Molecular Cell Science, Graduate School of Agricultural Science, Tohoku University, 468-1 Aoba, Aramaki, Aoba, Sendai, Miyagi, 980-0845, Japan
| | - Keita Kosaka
- Molecular Enzymology, Department of Molecular Cell Science, Graduate School of Agricultural Science, Tohoku University, 468-1 Aoba, Aramaki, Aoba, Sendai, Miyagi, 980-0845, Japan
| | - Saori Tsushima
- Molecular Enzymology, Department of Molecular Cell Science, Graduate School of Agricultural Science, Tohoku University, 468-1 Aoba, Aramaki, Aoba, Sendai, Miyagi, 980-0845, Japan
| | - Chiyoko Uchida
- Department of Human Development and Culture, Fukushima University, Fukushima, Fukushima, 960-1296, Japan
| | - Katsuhiko Takahashi
- Laboratory of Biochemistry, Hoshi University, 2-4-41, Ebara, Shinagawa, Tokyo, 142-8501, Japan
| | - Noriko Takahashi
- Laboratory of Bioorganic Chemistry, Institute of Medicinal Chemistry, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo, 142-8501, Japan
| | - Masayoshi Tsubuki
- Laboratory of Physiological Chemistry, Institute of Medicinal Chemistry, Hoshi University, 2-4-41, Ebara, Shinagawa, Tokyo, 142-8501, Japan
| | - Yukihiko Hara
- Tea Solutions, Hara Office Inc., 1-18-15-510, Taihei, Sumida-Ku, Tokyo 130-0012, Japan
| | - Takafumi Uchida
- Molecular Enzymology, Department of Molecular Cell Science, Graduate School of Agricultural Science, Tohoku University, 468-1 Aoba, Aramaki, Aoba, Sendai, Miyagi, 980-0845, Japan.
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24
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Uchida K, Tanaka Y, Ichikawa H, Watanabe M, Mitani S, Morita K, Fujii H, Ishikawa M, Yoshino G, Okinaga H, Nagae G, Aburatani H, Ikeda Y, Susa T, Tamamori-Adachi M, Fukusato T, Uozaki H, Okazaki T, Iizuka M. An Excess of CYP24A1, Lack of CaSR, and a Novel lncRNA Near the PTH Gene Characterize an Ectopic PTH-Producing Tumor. J Endocr Soc 2017; 1:691-711. [PMID: 29264523 PMCID: PMC5686629 DOI: 10.1210/js.2017-00063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 04/25/2017] [Indexed: 12/11/2022] Open
Abstract
Thus far, only 23 cases of the ectopic production of parathyroid hormone (PTH) have been reported. We have characterized the genome-wide transcription profile of an ectopic PTH-producing tumor originating from a retroperitoneal histiocytoma. We found that the calcium-sensing receptor (CaSR) was barely expressed in the tumor. Lack of CaSR, a crucial braking apparatus in the presence of both intraparathyroid and, probably, serendipitous PTH expression, might contribute strongly to the establishment and maintenance of the ectopic transcriptional activation of the PTH gene in nonparathyroid cells. Along with candidate drivers with a crucial frameshift mutation or copy number variation at specific chromosomal areas obtained from whole exome sequencing, we identified robust tumor-specific cytochrome P450 family 24 subfamily A member 1 (CYP24A1) overproduction, which was not observed in other non–PTH-expressing retroperitoneal histiocytoma and parathyroid adenoma samples. We then found a 2.5-kb noncoding RNA in the PTH 3′-downstream region that was exclusively present in the parathyroid adenoma and our tumor. Such a co-occurrence might act as another driver of ectopic PTH-producing tumorigenesis; both might release the control of PTH gene expression by shutting down the other branches of the safety system (e.g., CaSR and the vitamin D3–vitamin D receptor axis).
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Affiliation(s)
- Kosuke Uchida
- Department of Biochemistry, Teikyo University School of Medicine, Tokyo 173-0003, Japan.,Department of General Practice, National Defense Medical College, Saitama 359-0042, Japan
| | - Yuji Tanaka
- Department of General Practice, National Defense Medical College, Saitama 359-0042, Japan
| | - Hitoshi Ichikawa
- Genetics Division, National Cancer Center Research Institute, Tokyo 104-0045, Japan
| | - Masato Watanabe
- Department of Pathology, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Sachiyo Mitani
- Genetics Division, National Cancer Center Research Institute, Tokyo 104-0045, Japan
| | - Koji Morita
- Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Hiroko Fujii
- Department of Biochemistry, Teikyo University School of Medicine, Tokyo 173-0003, Japan.,Department of Internal Medicine, Self-Defense Forces Central Hospital, Tokyo 154-8532, Japan
| | - Mayumi Ishikawa
- Diabetes and Arteriosclerosis, Nippon Medical School, Musashikosugi Hospital, Kanagawa 211-8533, Japan
| | - Gen Yoshino
- Center for Diabetes, Shinsuma General Hospital, Hyogo 654-0047, Japan
| | - Hiroko Okinaga
- Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Genta Nagae
- Genome Science Laboratory Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan
| | - Hiroyuki Aburatani
- Genome Science Laboratory Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan
| | - Yoshifumi Ikeda
- Department of Surgery, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Takao Susa
- Department of Biochemistry, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Mimi Tamamori-Adachi
- Department of Biochemistry, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Toshio Fukusato
- Department of Pathology, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Hiroshi Uozaki
- Department of Pathology, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Tomoki Okazaki
- Department of Biochemistry, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Masayoshi Iizuka
- Department of Biochemistry, Teikyo University School of Medicine, Tokyo 173-0003, Japan
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Islam R, Yoon WJ, Ryoo HM. Pin1, the Master Orchestrator of Bone Cell Differentiation. J Cell Physiol 2017; 232:2339-2347. [PMID: 27225727 DOI: 10.1002/jcp.25442] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 05/24/2016] [Indexed: 12/25/2022]
Abstract
Pin1 is an enzyme that specifically recognizes the peptide bond between phosphorylated serine or threonine (pS/pT-P) and proline. This recognition causes a conformational change of its substrate, which further regulates downstream signaling. Pin1-/- mice show developmental bone defects and reduced mineralization. Pin1 targets RUNX2 (Runt-Related Transcription Factor 2), SMAD1/5, and β-catenin in the FGF, BMP, and WNT pathways, respectively. Pin1 has multiple roles in the crosstalk between different anabolic bone signaling pathways. For example, it controls different aspects of osteoblastogenesis and increases the transcriptional activity of Runx2, both directly and indirectly. Pin1 also influences osteoclastogenesis at different stages by targeting PU.1 (Purine-rich nucleic acid binding protein 1), C-FOS, and DC-STAMP. The phenotype of Pin1-/- mice has led to the recent identification of multiple roles of Pin1 in different molecular pathways in bone cells. These roles suggest that Pin1 can be utilized as an efficient drug target in congenital and acquired bone diseases. J. Cell. Physiol. 232: 2339-2347, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Rabia Islam
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Won-Joon Yoon
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Hyun-Mo Ryoo
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
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Shilo V, Mor-Yosef Levi I, Abel R, Mihailović A, Wasserman G, Naveh-Many T, Ben-Dov IZ. Let-7 and MicroRNA-148 Regulate Parathyroid Hormone Levels in Secondary Hyperparathyroidism. J Am Soc Nephrol 2017; 28:2353-2363. [PMID: 28298326 DOI: 10.1681/asn.2016050585] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 01/19/2017] [Indexed: 01/10/2023] Open
Abstract
Secondary hyperparathyroidism commonly complicates CKD and associates with morbidity and mortality. We profiled microRNA (miRNA) in parathyroid glands from experimental hyperparathyroidism models and patients receiving dialysis and studied the function of specific miRNAs. miRNA deep-sequencing showed that human and rodent parathyroids share similar profiles. Parathyroids from uremic and normal rats segregated on the basis of their miRNA expression profiles, and a similar finding was observed in humans. We identified parathyroid miRNAs that were dysregulated in experimental hyperparathyroidism, including miR-29, miR-21, miR-148, miR-30, and miR-141 (upregulated); and miR-10, miR-125, and miR-25 (downregulated). Inhibition of the abundant let-7 family increased parathyroid hormone (PTH) secretion in normal and uremic rats, as well as in mouse parathyroid organ cultures. Conversely, inhibition of the upregulated miR-148 family prevented the increase in serum PTH level in uremic rats and decreased levels of secreted PTH in parathyroid cultures. The evolutionary conservation of abundant miRNAs in normal parathyroid glands and the regulation of these miRNAs in secondary hyperparathyroidism indicates their importance for parathyroid function and the development of hyperparathyroidism. Specifically, let-7 and miR-148 antagonism modified PTH secretion in vivo and in vitro, implying roles for these specific miRNAs. These findings may be utilized for therapeutic interventions aimed at altering PTH expression in diseases such as osteoporosis and secondary hyperparathyroidism.
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Affiliation(s)
- Vitali Shilo
- Nephrology and Hypertension, Hadassah-Hebrew University Medical Center, Jerusalem, Israel; and
| | - Irit Mor-Yosef Levi
- Nephrology and Hypertension, Hadassah-Hebrew University Medical Center, Jerusalem, Israel; and
| | - Roy Abel
- Nephrology and Hypertension, Hadassah-Hebrew University Medical Center, Jerusalem, Israel; and
| | | | - Gilad Wasserman
- Nephrology and Hypertension, Hadassah-Hebrew University Medical Center, Jerusalem, Israel; and
| | - Tally Naveh-Many
- Nephrology and Hypertension, Hadassah-Hebrew University Medical Center, Jerusalem, Israel; and
| | - Iddo Z Ben-Dov
- Nephrology and Hypertension, Hadassah-Hebrew University Medical Center, Jerusalem, Israel; and
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27
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Zhao Y, Zhang LL, Ding FX, Cao P, Qi YY, Wang J. Pin1 and secondary hyperparathyroidism of chronic kidney disease: gene polymorphisms and protein levels. Ren Fail 2016; 39:159-165. [PMID: 27876426 PMCID: PMC6014329 DOI: 10.1080/0886022x.2016.1256310] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
BACKGROUND Peptidyl-prolyl cis/trans isomerase NIMA-interacting 1 (Pin1) is a key regulator of PTH mRNA stability. Secondary hyperparathyroidism (SHPT), which is characterized by elevated serum PTH levels, is a common complication of CKD. We investigated the possible associations between CKD with SHPT (CKD SHPT) and single-nucleotide polymorphisms of the Pin1 gene and compared the levels of the Pin1 protein in the CKD SHPT patients with those of the controls. METHODS The study group included 251 CKD SHPT patients and 61 controls. One putative functional SNP (single nucleotide polymorphism) in the Pin1 promoter (rs2233679C > T: c.-667C > T) is the main object. Genotyping was performed on purified DNA using polymerase chain reaction-restriction (PCR) and restriction fragment length polymorphisms (RFLP). The levels of Pin1 were measured in serum using an enzyme-linked immunosorbent assay. RESULTS Genotyping showed that CT + TT in the Pin1 promoter was significantly more common in the CKD SHPT group than in the control group (p<.05). The correlation analysis demonstrated that a significant difference in the C to T transition in the Pin1 promoter contributed to CKD SHPT (χ2=12.47, p<.05; Odds ratios (OR) = 1.26, 95% confidence (CI) intervals =1.06-1.49). The multivariate logistic regression analysis reported that the OR and 95%CI were 12.693 and 2.029-75.819 (p<.05), respectively, in the Pin1 gene promoter -667T variant genotypes (CT + TT) after adjusting for other factors, and those values in Pin1 were 0.310 and 0.122-0.792 (p<.05). CONCLUSION The -667T genetic variants in the Pin1 promoter contribute to an increased risk of CKD SHPT and may be biomarkers of susceptibility to CKD SHPT.
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Affiliation(s)
- Yu Zhao
- a Department of Medicine , Northwest University for Nationalities , Lanzhou , PR China
| | - Li-Li Zhang
- b Department of Nephrology , Second Hospital Affiliated of Lanzhou University , Lanzhou , PR China
| | - Fa-Xian Ding
- b Department of Nephrology , Second Hospital Affiliated of Lanzhou University , Lanzhou , PR China
| | - Ping Cao
- b Department of Nephrology , Second Hospital Affiliated of Lanzhou University , Lanzhou , PR China
| | - Yuan-Yuan Qi
- b Department of Nephrology , Second Hospital Affiliated of Lanzhou University , Lanzhou , PR China
| | - Jing Wang
- b Department of Nephrology , Second Hospital Affiliated of Lanzhou University , Lanzhou , PR China
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Feigerlová E, Battaglia-Hsu SF. Role of post-transcriptional regulation of mRNA stability in renal pathophysiology: focus on chronic kidney disease. FASEB J 2016; 31:457-468. [PMID: 27849555 DOI: 10.1096/fj.201601087rr] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 11/07/2016] [Indexed: 11/11/2022]
Abstract
Chronic kidney disease (CKD) represents an important public health problem. Its progression to end-stage renal disease is associated with increased morbidity and mortality. The determinants of renal function decline are not fully understood. Recent progress in the understanding of post-transcriptional regulation of mRNA stability has helped the identification of both the trans- and cis-acting elements of mRNA as potential markers and therapeutic targets for difficult-to-diagnose and -treat diseases, including CKDs such as diabetic nephropathy. Human antigen R (HuR), a trans-acting element of mRNA, is an RNA binding factor (RBF) best known for its ability to stabilize AU-rich-element-containing mRNAs. Deregulated HuR subcellular localization or expression occurs in a wide range of renal diseases, such as metabolic acidosis, ischemia, and fibrosis. Besides RBFs, recent evidence revealed that noncoding RNA, such as microRNA and long noncoding RNA, participates in regulating mRNA stability and that aberrant noncoding RNA expression accounts for many pathologic renal conditions. The goal of this review is to provide an overview of our current understanding of the post-transcriptional regulation of mRNA stability in renal pathophysiology and to offer perspectives for this class of diseases. We use examples of diverse renal diseases to illustrate different mRNA stability pathways in specific cellular compartments and discuss the roles and impacts of both the cis- and trans-activating factors on the regulation of mRNA stability in these diseases.-Feigerlová, E., Battaglia-Hsu, S.-F. Role of post-transcriptional regulation of mRNA stability in renal pathophysiology: focus on chronic kidney disease.
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Affiliation(s)
- Eva Feigerlová
- Service d'Endocrinologie, Centre Hospitalier Universitaire de Poitiers, Pôle DUNE, Poitiers, France; .,Université de Poitiers, Unité de Formation et de Recherche Médecine Pharmacie, Poitiers, France.,Clinical Investigation Centre 1402, Unité 1082, INSERM, Poitiers, France; and
| | - Shyue-Fang Battaglia-Hsu
- Nutrition Génétique et Exposition aux Risques Environnementaux, INSERM Unité 954, Université de Lorraine et Centre Hospitalier Regional Universitaire de Nancy, Vandœuvre les Nancy, France
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Shen ZJ, Hu J, Shiizaki K, Kuro-o M, Malter JS. Phosphate-Induced Renal Fibrosis Requires the Prolyl Isomerase Pin1. PLoS One 2016; 11:e0150093. [PMID: 26914452 PMCID: PMC4767802 DOI: 10.1371/journal.pone.0150093] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 02/09/2016] [Indexed: 12/25/2022] Open
Abstract
Tubulo-interstitial fibrosis is a common, destructive endpoint for a variety of kidney diseases. Fibrosis is well correlated with the loss of kidney function in both humans and rodents. The identification of modulators of fibrosis could provide novel therapeutic approaches to reducing disease progression or severity. Here, we show that the peptidyl-prolyl isomerase Pin1 is an important molecular contributor that facilitates renal fibrosis in a well-characterized animal model. While wild-type mice fed a high phosphate diet (HPD) for 8–12 weeks developed calcium deposition, macrophage infiltration and extracellular matrix (ECM) accumulation in the kidney interstitium, Pin1 null mice showed significantly less pathology. The serum Pi in both WT and KO mice were significantly increased by the HPD, but the serum Ca was slightly decreased in KO compared to WT. In addition, both WT and KO HPD mice had less weight gain but exhibited normal organ mass (kidney, lung, spleen, liver and heart). Unexpectedly, renal function was not initially impaired in either genotype irrespective of the HPD. Our results suggest that diet containing high Pi induces rapid renal fibrosis before a significant impact on renal function and that Pin1 plays an important role in the fibrotic process.
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Affiliation(s)
- Zhong-Jian Shen
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- * E-mail: (ZJS); (JSM)
| | - Jie Hu
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Kazuhiro Shiizaki
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Makoto Kuro-o
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - James S. Malter
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- * E-mail: (ZJS); (JSM)
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Murray RD, Merchant ML, Hardin E, Clark B, Khundmiri SJ, Lederer ED. Identification of an RNA-binding protein that is phosphorylated by PTH and potentially mediates PTH-induced destabilization of Npt2a mRNA. Am J Physiol Cell Physiol 2015; 310:C205-15. [PMID: 26834145 DOI: 10.1152/ajpcell.00192.2015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 11/19/2015] [Indexed: 12/19/2022]
Abstract
Parathyroid hormone (PTH) is a key regulator of the expression and function of the type IIa sodium-phosphate cotransporter (Npt2a), the protein responsible for regulated renal phosphate reabsorption. We previously showed that PTH induces rapid decay of Npt2a mRNA through posttranscriptional mechanisms. We hypothesized that PTH-induced changes in RNA-binding protein (RBP) activity mediate the degradation of Npt2a mRNA. To address this aim, we treated opossum kidney (OK) cells, a PTH-sensitive proximal tubule cell culture model, with 100 nM PTH for 30 min and 2 h, followed by mass spectrometry characterization of the PTH-stimulated phosphoproteome. We identified 1,182 proteins differentially phosphorylated in response to PTH, including 68 RBPs. Preliminary analysis identified a phospho-RBP, hnRNPK-homology-type-splicing regulatory protein (KSRP), with predicted binding sites for the 3'-untranslated region (UTR) of Npt2a mRNA. Western blot analysis confirmed expression of KSRP in OK cells and showed PTH-dependent translocation to the nucleus. Immunoprecipitation of KSRP from control and PTH-treated cells followed by RNA isolation and RT-quantitative PCR analysis identified Npt2a mRNA from both control and PTH-treated KSRP pulldowns. Knockdown of KSRP followed by PTH treatment showed that KSRP is required for mediating PTH-stimulated reduction in sodium/hydrogen exchanger 3 mRNA, but not Npt2a mRNA. We conclude that 1) PTH is a major regulator of both transcription and translation, and 2) KSRP binds Npt2a mRNA but its role in PTH regulation of Npt2a mRNA is not clear.
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Affiliation(s)
- Rebecca D Murray
- Department of Physiology and Biophysics, University of Louisville, Louisville, Kentucky; Department of Medicine/Kidney Disease Program, University of Louisville, Louisville, Kentucky
| | - Michael L Merchant
- Department of Medicine/Kidney Disease Program, University of Louisville, Louisville, Kentucky
| | - Ericka Hardin
- Western Kentucky University, Bowling Green, Kentucky; and
| | - Barbara Clark
- Department of Biochemistry, University of Louisville, Louisville, Kentucky
| | - Syed J Khundmiri
- Robley Rex Veterans Affairs Medical Center, Louisville, Kentucky; Department of Physiology and Biophysics, University of Louisville, Louisville, Kentucky; Department of Medicine/Kidney Disease Program, University of Louisville, Louisville, Kentucky
| | - Eleanor D Lederer
- Robley Rex Veterans Affairs Medical Center, Louisville, Kentucky; Department of Physiology and Biophysics, University of Louisville, Louisville, Kentucky; Department of Medicine/Kidney Disease Program, University of Louisville, Louisville, Kentucky;
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Shen ZJ, Malter JS. Determinants of eosinophil survival and apoptotic cell death. Apoptosis 2015; 20:224-34. [PMID: 25563855 DOI: 10.1007/s10495-014-1072-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Eosinophils (Eos) are potent inflammatory cells and abundantly present in the sputum and lung of patients with allergic asthma. During both transit to and residence in the lung, Eos contact prosurvival cytokines, particularly IL-3, IL-5 and GM-CSF, that attenuate cell death. Cytokine signaling modulates the expression and function of a number of intracellular pro- and anti-apoptotic molecules. Both intrinsic mitochondrial and extrinsic receptor-mediated pathways are affected. This article discusses the fundamental role of the extracellular and intracellular molecules that initiate and control survival decisions by human Eos and highlights the role of the cis-trans isomerase, Pin1 in controlling these processes.
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Affiliation(s)
- Zhong-Jian Shen
- Department of Pathology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX, 75390-9072, USA,
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Shilo V, Ben-Dov IZ, Nechama M, Silver J, Naveh-Many T. Parathyroid-specific deletion of dicer-dependent microRNAs abrogates the response of the parathyroid to acute and chronic hypocalcemia and uremia. FASEB J 2015; 29:3964-76. [PMID: 26054367 DOI: 10.1096/fj.15-274191] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Accepted: 05/26/2015] [Indexed: 11/11/2022]
Abstract
MicroRNAs (miRNAs) down-regulate gene expression and have vital roles in biology but their functions in the parathyroid are unexplored. To study this, we generated parathyroid-specific Dicer1 knockout (PT-Dicer(-/-) ) mice where parathyroid miRNA maturation is blocked. Remarkably, the PT-Dicer(-/-) mice did not increase serum parathyroid hormone (PTH) in response to acute hypocalcemia compared with the >5-fold increase in controls. PT-Dicer(-/-) glands cultured in low-calcium medium secreted 5-fold less PTH at 1.5 h than controls. Chronic hypocalcemia increased serum PTH >4-fold less in PT-Dicer(-/-) mice compared with control mice with no increase in PTH mRNA levels and parathyroid cell proliferation compared with the 2- to 3-fold increase in hypocalcemic controls. Moreover, uremic PT-Dicer(-/-) mice increased serum PTH and FGF23 significantly less than uremic controls. Therefore, stimulation of the parathyroid by both hypocalcemia and uremia is dependent upon intact dicer function and miRNAs. In contrast, the PT-Dicer(-/-) mice responded normally to activation of the parathyroid calcium-sensing receptor (Casr) by both hypercalcemia and a calcimimetic that decreases PTH secretion, demonstrating that they are dicer-independent. Therefore, miRNAs are essential for the response of the parathyroid to both acute and chronic hypocalcemia and uremia, the major stimuli for PTH secretion.
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Affiliation(s)
- Vitali Shilo
- *Minerva Center for Calcium and Bone Metabolism, Nephrology Services, Hadassah Hebrew University Medical Center, Jerusalem, Israel; and Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Iddo Z Ben-Dov
- *Minerva Center for Calcium and Bone Metabolism, Nephrology Services, Hadassah Hebrew University Medical Center, Jerusalem, Israel; and Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Morris Nechama
- *Minerva Center for Calcium and Bone Metabolism, Nephrology Services, Hadassah Hebrew University Medical Center, Jerusalem, Israel; and Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Justin Silver
- *Minerva Center for Calcium and Bone Metabolism, Nephrology Services, Hadassah Hebrew University Medical Center, Jerusalem, Israel; and Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Tally Naveh-Many
- *Minerva Center for Calcium and Bone Metabolism, Nephrology Services, Hadassah Hebrew University Medical Center, Jerusalem, Israel; and Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
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Roles of Prolyl Isomerases in RNA-Mediated Gene Expression. Biomolecules 2015; 5:974-99. [PMID: 25992900 PMCID: PMC4496705 DOI: 10.3390/biom5020974] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 05/01/2015] [Accepted: 05/07/2015] [Indexed: 12/16/2022] Open
Abstract
The peptidyl-prolyl cis-trans isomerases (PPIases) that include immunophilins (cyclophilins and FKBPs) and parvulins (Pin1, Par14, Par17) participate in cell signaling, transcription, pre-mRNA processing and mRNA decay. The human genome encodes 19 cyclophilins, 18 FKBPs and three parvulins. Immunophilins are receptors for the immunosuppressive drugs cyclosporin A, FK506, and rapamycin that are used in organ transplantation. Pin1 has also been targeted in the treatment of Alzheimer’s disease, asthma, and a number of cancers. While these PPIases are characterized as molecular chaperones, they also act in a nonchaperone manner to promote protein-protein interactions using surfaces outside their active sites. The immunosuppressive drugs act by a gain-of-function mechanism by promoting protein-protein interactions in vivo. Several immunophilins have been identified as components of the spliceosome and are essential for alternative splicing. Pin1 plays roles in transcription and RNA processing by catalyzing conformational changes in the RNA Pol II C-terminal domain. Pin1 also binds several RNA binding proteins such as AUF1, KSRP, HuR, and SLBP that regulate mRNA decay by remodeling mRNP complexes. The functions of ribonucleoprotein associated PPIases are largely unknown. This review highlights PPIases that play roles in RNA-mediated gene expression, providing insight into their structures, functions and mechanisms of action in mRNP remodeling in vivo.
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The structural and functional role of the three tryptophan residues in Pin1. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 146:58-67. [DOI: 10.1016/j.jphotobiol.2015.03.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 02/25/2015] [Accepted: 03/12/2015] [Indexed: 11/23/2022]
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Shen ZJ, Malter JS. Regulation of AU-Rich Element RNA Binding Proteins by Phosphorylation and the Prolyl Isomerase Pin1. Biomolecules 2015; 5:412-34. [PMID: 25874604 PMCID: PMC4496679 DOI: 10.3390/biom5020412] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 03/23/2015] [Accepted: 03/31/2015] [Indexed: 01/19/2023] Open
Abstract
The accumulation of 3' untranslated region (3'-UTR), AU-rich element (ARE) containing mRNAs, are predominantly controlled at the post-transcriptional level. Regulation appears to rely on a variable and dynamic interaction between mRNA target and ARE-specific binding proteins (AUBPs). The AUBP-ARE mRNA recognition is directed by multiple intracellular signals that are predominantly targeted at the AUBPs. These include (but are unlikely limited to) methylation, acetylation, phosphorylation, ubiquitination and isomerization. These regulatory events ultimately affect ARE mRNA location, abundance, translation and stability. In this review, we describe recent advances in our understanding of phosphorylation and its impact on conformation of the AUBPs, interaction with ARE mRNAs and highlight the role of Pin1 mediated prolyl cis-trans isomerization in these biological process.
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Affiliation(s)
- Zhong-Jian Shen
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390-8548, USA.
| | - James S Malter
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390-8548, USA.
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Mantovani F, Zannini A, Rustighi A, Del Sal G. Interaction of p53 with prolyl isomerases: Healthy and unhealthy relationships. Biochim Biophys Acta Gen Subj 2015; 1850:2048-60. [PMID: 25641576 DOI: 10.1016/j.bbagen.2015.01.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Revised: 01/17/2015] [Accepted: 01/19/2015] [Indexed: 01/11/2023]
Abstract
BACKGROUND The p53 protein family, comprising p53, p63 and p73, is primarily involved in preserving genome integrity and preventing tumor onset, and also affects a range of physiological processes. Signal-dependent modifications of its members and of other pathway components provide cells with a sophisticated code to transduce a variety of stress signaling into appropriate responses. TP53 mutations are highly frequent in cancer and lead to the expression of mutant p53 proteins that are endowed with oncogenic activities and sensitive to stress signaling. SCOPE OF REVIEW p53 family proteins have unique structural and functional plasticity, and here we discuss the relevance of prolyl-isomerization to actively shape these features. MAJOR CONCLUSIONS The anti-proliferative functions of the p53 family are carefully activated upon severe stress and this involves the interaction with prolyl-isomerases. In particular, stress-induced stabilization of p53, activation of its transcriptional control over arrest- and cell death-related target genes and of its mitochondrial apoptotic function, as well as certain p63 and p73 functions, all require phosphorylation of specific S/T-P motifs and their subsequent isomerization by the prolyl-isomerase Pin1. While these functions of p53 counteract tumorigenesis, under some circumstances their activation by prolyl-isomerases may have negative repercussions (e.g. tissue damage induced by anticancer therapies and ischemia-reperfusion, neurodegeneration). Moreover, elevated Pin1 levels in tumor cells may transduce deregulated phosphorylation signaling into activation of mutant p53 oncogenic functions. GENERAL SIGNIFICANCE The complex repertoire of biological outcomes induced by p53 finds mechanistic explanations, at least in part, in the association between prolyl-isomerases and the p53 pathway. This article is part of a Special Issue entitled Proline-directed foldases: Cell signaling catalysts and drug targets.
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Affiliation(s)
- Fiamma Mantovani
- Laboratorio Nazionale CIB (LNCIB), Area Science Park, Trieste, Italy; Dipartimento di Scienze della Vita, Università degli Studi di Trieste, Trieste, Italy
| | - Alessandro Zannini
- Laboratorio Nazionale CIB (LNCIB), Area Science Park, Trieste, Italy; Dipartimento di Scienze della Vita, Università degli Studi di Trieste, Trieste, Italy
| | - Alessandra Rustighi
- Laboratorio Nazionale CIB (LNCIB), Area Science Park, Trieste, Italy; Dipartimento di Scienze della Vita, Università degli Studi di Trieste, Trieste, Italy
| | - Giannino Del Sal
- Laboratorio Nazionale CIB (LNCIB), Area Science Park, Trieste, Italy; Dipartimento di Scienze della Vita, Università degli Studi di Trieste, Trieste, Italy.
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Fabbri S, Ciuffi S, Nardone V, Gomes AR, Mavilia C, Zonefrati R, Galli G, Luzi E, Tanini A, Brandi ML. PTH-C1: a rat continuous cell line expressing the parathyroid phenotype. Endocrine 2014; 47:90-9. [PMID: 24627164 DOI: 10.1007/s12020-014-0229-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 02/26/2014] [Indexed: 01/17/2023]
Abstract
The lack of a continuous cell line of epithelial parathyroid cells able to produce parathyroid hormone (PTH) has hampered the studies on in vitro evaluation of the mechanisms involved in the control of parathyroid cell function and proliferation. The PT-r cell line was first established from rat parathyroid tissue in 1987, but these cells were known to express the parathyroid hormone-related peptide (Pthrp) gene, but not the Pth gene. In an attempt to subclone the PT-r cell line, a rat parathyroid cell strain was isolated and named PTH-C1. During 3 years, in culture, PTH-C1 cells maintained an epithelioid morphology, displaying a diploid chromosome number, a doubling time around 15 h during the exponential phase of growth, and parathyroid functional features. PTH-C1 cell line produces PTH and expresses the calcium sensing receptor (Casr) gene and other genes known to be involved in parathyroid function. Most importantly, the PTH-C1 cells also exhibit an in vitro secretory response to calcium. Altogether these findings indicate the uniqueness of the PTH-C1 cell line as an in vitro model for cellular and molecular studies on parathyroid physiopathology.
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Affiliation(s)
- Sergio Fabbri
- Department of Surgery and Translational Medicine, University of Florence, Largo Brambilla 3, 50134, Florence, Italy
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Pullmann R, Rabb H. HuR and other turnover- and translation-regulatory RNA-binding proteins: implications for the kidney. Am J Physiol Renal Physiol 2014; 306:F569-76. [PMID: 24431206 DOI: 10.1152/ajprenal.00270.2013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The posttranscriptional regulation of gene expression occurs through cis RNA regulatory elements by the action of trans factors, which are represented by noncoding RNAs (especially microRNAs) and turnover- and translation-regulatory (TTR) RNA-binding proteins (RBPs). These multifactorial proteins are a group of heterogeneous RBPs primarily implicated in controlling the decay and translation rates of target mRNAs. TTR-RBPs usually shuttle between cellular compartments (the nucleus and cytoplasm) in response to various stimuli and undergo posttranslational modifications such as phosphorylation or methylation to ensure their proper subcellular localization and function. TTR-RBPs are emerging as key regulators of a wide variety of genes influencing kidney physiology and pathology. This review summarizes the current knowledge of TTR-RBPs that influence renal metabolism. We will discuss the role of TTR-RBPs as regulators of kidney ischemia, fibrosis and matrix remodeling, angiogenesis, membrane transport, immunity, vascular tone, hypertension, and acid-base balance as well as anemia, bone mineral disease, and vascular calcification.
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Krishnan N, Titus MA, Thapar R. The prolyl isomerase pin1 regulates mRNA levels of genes with short half-lives by targeting specific RNA binding proteins. PLoS One 2014; 9:e85427. [PMID: 24416409 PMCID: PMC3887067 DOI: 10.1371/journal.pone.0085427] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 12/04/2013] [Indexed: 01/13/2023] Open
Abstract
The peptidyl-prolyl isomerase Pin1 is over-expressed in several cancer tissues is a potential prognostic marker in prostate cancer, and Pin1 ablation can suppress tumorigenesis in breast and prostate cancers. Pin1 can co-operate with activated ErbB2 or Ras to enhance tumorigenesis. It does so by regulating the activity of proteins that are essential for gene expression and cell proliferation. Several targets of Pin1 such as c-Myc, the Androgen Receptor, Estrogen Receptor-alpha, Cyclin D1, Cyclin E, p53, RAF kinase and NCOA3 are deregulated in cancer. At the posttranscriptional level, emerging evidence indicates that Pin1 also regulates mRNA decay of histone mRNAs, GM-CSF, Pth, and TGFβ mRNAs by interacting with the histone mRNA specific protein SLBP, and the ARE-binding proteins AUF1 and KSRP, respectively. To understand how Pin1 may affect mRNA abundance on a genome-wide scale in mammalian cells, we used RNAi along with DNA microarrays to identify genes whose abundance is significantly altered in response to a Pin1 knockdown. Functional scoring of differentially expressed genes showed that Pin1 gene targets control cell adhesion, leukocyte migration, the phosphatidylinositol signaling system and DNA replication. Several mRNAs whose abundance was significantly altered by Pin1 knockdown contained AU-rich element (ARE) sequences in their 3' untranslated regions. We identified HuR and AUF1 as Pin1 interacting ARE-binding proteins in vivo. Pin1 was also found to stabilize all core histone mRNAs in this study, thereby validating our results from a previously published study. Statistical analysis suggests that Pin1 may target the decay of essential mRNAs that are inherently unstable and have short to medium half-lives. Thus, this study shows that an important biological role of Pin1 is to regulate mRNA abundance and stability by interacting with specific RNA-binding proteins that may play a role in cancer progression.
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Affiliation(s)
- Nithya Krishnan
- Hauptman-Woodward Medical Research Institute, SUNY at Buffalo, New York, United States of America
| | - Mark A. Titus
- Department of Genitourinary Medical Oncology, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, United States of America
| | - Roopa Thapar
- Hauptman-Woodward Medical Research Institute, SUNY at Buffalo, New York, United States of America
- Department of Structural Biology, SUNY at Buffalo, New York, United States of America
- Department of Biochemistry and Cell Biology, Rice University, Houston, Texas, United States of America
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Sallée M, Fontès M, Louis L, Cérini C, Brunet P, Burtey S. Alternative splicing events is not a key event for gene expression regulation in uremia. PLoS One 2013; 8:e82702. [PMID: 24358217 PMCID: PMC3865105 DOI: 10.1371/journal.pone.0082702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 10/26/2013] [Indexed: 11/29/2022] Open
Abstract
Background The control of gene expression in the course of chronic kidney disease (CKD) is not well addressed. Alternative splicing is a common way to increase complexity of proteins. More than 90% of human transcripts are alternatively spliced. We hypothesised that CKD can induce modification of the alternative splicing machinery. Methods During mutation screening in autosomal dominant polycystic kidney disease, we identified in mononuclear cells (PBMC), an alternative splicing event on the exon 30 of PKD1 gene, the gene implicated in this disease. This alternative splice variant was not correlated with the cystic disease but with CKD. To confirm the association between this variant and CKD, a monocentric clinical study was performed with 3 different groups according to their kidney function (CKD5D, CKD3-5 and normal kidney function). An exon microarray approach was used to highlight splicing events in whole human genome in a normal cell model (fibroblasts) incubated with uremic serum. Alternative splicing variants identified were confirmed by RT-PCR. Results The splicing variant of the exon 30 of PKD1 was more frequent in PBMCs from patients with CKD compared to control. With the microarray approach, despite the analysis of more than 230 000 probes, we identified 36 genes with an abnormal splicing index evocating splicing event in fibroblasts exposed to uremic serum. Only one abnormal splicing event in one gene, ADH1B, was confirmed by RT-PCR. Conclusion We observed two alternative spliced genes in two different cell types associated with CKD. Alternative splicing could play a role in the control of gene expression during CKD but it does not seem to be a major mechanism.
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Affiliation(s)
- Marion Sallée
- Aix-Marseille Université, INSERM UMR_S 1076, UFR Pharmacie, Marseille, France ; Centre de Néphrologie et Transplantation Rénale, Assistance Publique-Hôpitaux de Marseille, Hôpital de La Conception, Marseille, France
| | - Michel Fontès
- Aix-Marseille Université, INSERM UMR_S 1062 UFR Médecine, Marseille, France
| | - Laurence Louis
- Aix-Marseille Université, Plate-forme génomique et transcriptomique, UMR_S 910, UFR médecine, Marseille, France
| | - Claire Cérini
- Aix-Marseille Université, INSERM UMR_S 1076, UFR Pharmacie, Marseille, France
| | - Philippe Brunet
- Aix-Marseille Université, INSERM UMR_S 1076, UFR Pharmacie, Marseille, France ; Centre de Néphrologie et Transplantation Rénale, Assistance Publique-Hôpitaux de Marseille, Hôpital de La Conception, Marseille, France
| | - Stéphane Burtey
- Aix-Marseille Université, INSERM UMR_S 1076, UFR Pharmacie, Marseille, France ; Centre de Néphrologie et Transplantation Rénale, Assistance Publique-Hôpitaux de Marseille, Hôpital de La Conception, Marseille, France
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Olauson H, Lindberg K, Amin R, Sato T, Jia T, Goetz R, Mohammadi M, Andersson G, Lanske B, Larsson TE. Parathyroid-specific deletion of Klotho unravels a novel calcineurin-dependent FGF23 signaling pathway that regulates PTH secretion. PLoS Genet 2013; 9:e1003975. [PMID: 24348262 PMCID: PMC3861040 DOI: 10.1371/journal.pgen.1003975] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Accepted: 10/09/2013] [Indexed: 12/20/2022] Open
Abstract
Klotho acts as a co-receptor for and dictates tissue specificity of circulating FGF23. FGF23 inhibits PTH secretion, and reduced Klotho abundance is considered a pathogenic factor in renal secondary hyperparathyroidism. To dissect the role of parathyroid gland resident Klotho in health and disease, we generated mice with a parathyroid-specific Klotho deletion (PTH-KL−/−). PTH-KL−/− mice had a normal gross phenotype and survival; normal serum PTH and calcium; unaltered expression of the PTH gene in parathyroid tissue; and preserved PTH response and sensitivity to acute changes in serum calcium. Their PTH response to intravenous FGF23 delivery or renal failure did not differ compared to their wild-type littermates despite disrupted FGF23-induced activation of the MAPK/ERK pathway. Importantly, calcineurin-NFAT signaling, defined by increased MCIP1 level and nuclear localization of NFATC2, was constitutively activated in PTH-KL−/− mice. Treatment with the calcineurin-inhibitor cyclosporine A abolished FGF23-mediated PTH suppression in PTH-KL−/− mice whereas wild-type mice remained responsive. Similar results were observed in thyro-parathyroid explants ex vivo. Collectively, we present genetic and functional evidence for a novel, Klotho-independent, calcineurin-mediated FGF23 signaling pathway in parathyroid glands that mediates suppression of PTH. The presence of Klotho-independent FGF23 effects in a Klotho-expressing target organ represents a paradigm shift in the conceptualization of FGF23 endocrine action. Inorganic calcium is a critical element for a diverse range of cellular processes ranging from cell signaling to energy metabolism, and its extracellular concentration is controlled by parathyroid hormone (PTH). Klotho is expressed in parathyroid chief cells and reported to facilitate PTH secretion during hypocalcemia and mediate FGF23 suppression of PTH synthesis and secretion. To dissect the role of parathyroid Klotho in health and disease, we generated parathyroid-specific Klotho knockout mice. The mutant mice had normal serum levels of PTH and calcium. Further, their parathyroid sensitivity to acute fluctuations in serum calcium and response to FGF23 treatment were preserved, and mutant mice developed secondary hyperparathyroidism of similar magnitude as wild-type mice when challenged with renal failure. A previously unknown parathyroid FGF23 signaling pathway involving calcineurin was constitutively activated in the mutant mice, and blocking this pathway abolished FGF23-induced suppression of PTH secretion. Our data challenges the concepts of Klotho as a mandatory factor for the acute hypocalcemic PTH response and decreased Klotho abundance as a pathogenic factor in secondary hyperparathyroidism. Finally, the presence of Klotho-independent FGF23 effects in a Klotho-expressing target organ represents a paradigm shift in the conceptualization of FGF23 endocrine action.
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Affiliation(s)
- Hannes Olauson
- Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Karolina Lindberg
- Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Risul Amin
- Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Tadatoshi Sato
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, United States of America
| | - Ting Jia
- Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Regina Goetz
- Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, New York, United States of America
| | - Moosa Mohammadi
- Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, New York, United States of America
| | - Göran Andersson
- Division of Pathology, Department of Laboratory Medicine, Karolinska Institutet and Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Beate Lanske
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, United States of America
| | - Tobias E. Larsson
- Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
- Department of Nephrology, Karolinska University Hospital, Stockholm, Sweden
- * E-mail:
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Thapar R, Denmon AP. Signaling pathways that control mRNA turnover. Cell Signal 2013; 25:1699-710. [PMID: 23602935 PMCID: PMC3703460 DOI: 10.1016/j.cellsig.2013.03.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Accepted: 03/29/2013] [Indexed: 02/06/2023]
Abstract
Cells regulate their genomes mainly at the level of transcription and at the level of mRNA decay. While regulation at the level of transcription is clearly important, the regulation of mRNA turnover by signaling networks is essential for a rapid response to external stimuli. Signaling pathways result in posttranslational modification of RNA binding proteins by phosphorylation, ubiquitination, methylation, acetylation etc. These modifications are important for rapid remodeling of dynamic ribonucleoprotein complexes and triggering mRNA decay. Understanding how these posttranslational modifications alter gene expression is therefore a fundamental question in biology. In this review we highlight recent findings on how signaling pathways and cell cycle checkpoints involving phosphorylation, ubiquitination, and arginine methylation affect mRNA turnover.
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Affiliation(s)
- Roopa Thapar
- Hauptman-Woodward Medical Research Institute, 700 Ellicott Street, Buffalo, NY 14203, USA.
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Disorders of calcium and magnesium balance: a physiology-based approach. Pediatr Nephrol 2013; 28:1195-206. [PMID: 23142866 DOI: 10.1007/s00467-012-2350-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 10/02/2012] [Accepted: 10/08/2012] [Indexed: 01/20/2023]
Abstract
Disorders of calcium and magnesium balance are physiologically interesting and clinically challenging. In this review, we attempt to bridge the gap between physiology and practice by providing a physiology-based approach to understanding hypocalcemia, hypercalcemia and hypomagnesemia. Calcium and, to a lesser extent, magnesium balance is achieved through a complex interplay between the parathyroid gland, bone, the intestine and the kidney. Our understanding of the molecular physiology of calcium and magnesium balance has grown considerably following the discovery of the calcium-sensing receptor (CaSR) and the main intestinal and renal transporters for calcium and magnesium, namely, the transient receptor potential channels TRPV5, TRPV6 and TRPM6. The regulation of parathyroid hormone (PTH) secretion by CaSR and the subsequent effects of PTH and vitamin D on TRPV5 constitute an increasingly characterized regulatory loop. In contrast, no truly magnesiotropic hormones have been identified, although the recently established interactions between the epidermal growth factor and TRPM6 suggest a possible candidate. Overall, the aim of this review is to illustrate the clinical disorders of calcium and magnesium balance from the perspective of their integrated physiology.
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Shen ZJ, Hu J, Ali A, Pastor J, Shiizaki K, Blank RD, Kuro-o M, Malter JS. Pin1 null mice exhibit low bone mass and attenuation of BMP signaling. PLoS One 2013; 8:e63565. [PMID: 23675491 PMCID: PMC3651169 DOI: 10.1371/journal.pone.0063565] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Accepted: 04/04/2013] [Indexed: 01/08/2023] Open
Abstract
Bone is constantly formed and resorbed throughout life by coordinated actions of osteoblasts and osteoclasts. However, the molecular mechanisms involved in osteoblast function remain incompletely understood. Here we show, for the first time, that the peptidyl-prolyl isomerase PIN1 controls the osteogenic activity of osteoblasts. Pin1 null mice exhibited an age-dependent decrease in bone mineral density and trabecular bone formation without alteration in cortical bone. Further analysis identified a defect in BMP signaling in Pin1 null osteoblasts but normal osteoclast function. PIN1 interacted with SMAD5 and was required for the expression by primary osteoblasts of osteoblast specific transcription factors (CBFA1 and OSX), ECM (collagen I and OCN) and the formation of bone nodules. Our results thus uncover a novel aspect of the molecular underpinning of osteoblast function and identify a new therapeutic target for bone diseases.
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Affiliation(s)
- Zhong-Jian Shen
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America.
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Amirouche A, Tadesse H, Lunde JA, Bélanger G, Côté J, Jasmin BJ. Activation of p38 signaling increases utrophin A expression in skeletal muscle via the RNA-binding protein KSRP and inhibition of AU-rich element-mediated mRNA decay: implications for novel DMD therapeutics. Hum Mol Genet 2013; 22:3093-111. [PMID: 23575223 DOI: 10.1093/hmg/ddt165] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Several therapeutic approaches are currently being developed for Duchenne muscular dystrophy (DMD) including upregulating the levels of endogenous utrophin A in dystrophic fibers. Here, we examined the role of post-transcriptional mechanisms in controlling utrophin A expression in skeletal muscle. We show that activation of p38 leads to an increase in utrophin A independently of a transcriptional induction. Rather, p38 controls the levels of utrophin A mRNA by extending the half-life of transcripts via AU-rich elements (AREs). This mechanism critically depends on a decrease in the functional availability of KSRP, an RNA-binding protein known to promote decay of ARE-containing transcripts. In vitro and in vivo binding studies revealed that KSRP interacts with specific AREs located within the utrophin A 3' UTR. Electroporation experiments to knockdown KSRP led to an increase in utrophin A in wild-type and mdx mouse muscles. In pre-clinical studies, treatment of mdx mice with heparin, an activator of p38, causes a pronounced increase in utrophin A in diaphragm muscle fibers. Together, these studies identify a pathway that culminates in the post-transcriptional regulation of utrophin A through increases in mRNA stability. Furthermore, our results constitute proof-of-principle showing that pharmacological activation of p38 may prove beneficial as a novel therapeutic approach for DMD.
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Affiliation(s)
- Adel Amirouche
- Faculty of Medicine, Department of Cellular and Molecular Medicine and Centre for Neuromuscular Disease, University of Ottawa, ON, Canada K1H 8M5
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Drüeke TB, Olgaard K. Report on 2012 ISN Nexus Symposium: ‘Bone and the Kidney’. Kidney Int 2013; 83:557-62. [DOI: 10.1038/ki.2012.453] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Bergwitz C, Wee MJ, Sinha S, Huang J, DeRobertis C, Mensah LB, Cohen J, Friedman A, Kulkarni M, Hu Y, Vinayagam A, Schnall-Levin M, Berger B, Perkins LA, Mohr SE, Perrimon N. Genetic determinants of phosphate response in Drosophila. PLoS One 2013; 8:e56753. [PMID: 23520455 PMCID: PMC3592877 DOI: 10.1371/journal.pone.0056753] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Accepted: 01/14/2013] [Indexed: 11/30/2022] Open
Abstract
Phosphate is required for many important cellular processes and having too little phosphate or too much can cause disease and reduce life span in humans. However, the mechanisms underlying homeostatic control of extracellular phosphate levels and cellular effects of phosphate are poorly understood. Here, we establish Drosophila melanogaster as a model system for the study of phosphate effects. We found that Drosophila larval development depends on the availability of phosphate in the medium. Conversely, life span is reduced when adult flies are cultured on high phosphate medium or when hemolymph phosphate is increased in flies with impaired Malpighian tubules. In addition, RNAi-mediated inhibition of MAPK-signaling by knockdown of Ras85D, phl/D-Raf or Dsor1/MEK affects larval development, adult life span and hemolymph phosphate, suggesting that some in vivo effects involve activation of this signaling pathway by phosphate. To identify novel genetic determinants of phosphate responses, we used Drosophila hemocyte-like cultured cells (S2R+) to perform a genome-wide RNAi screen using MAPK activation as the readout. We identified a number of candidate genes potentially important for the cellular response to phosphate. Evaluation of 51 genes in live flies revealed some that affect larval development, adult life span and hemolymph phosphate levels.
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Affiliation(s)
- Clemens Bergwitz
- Endocrine Unit, Massachusetts General Hospital, Boston, Massachusetts, United States of America.
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Damgaard CK, Lykke-Andersen J. Regulation of ARE-mRNA Stability by Cellular Signaling: Implications for Human Cancer. Cancer Treat Res 2013; 158:153-80. [PMID: 24222358 DOI: 10.1007/978-3-642-31659-3_7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
During recent years, it has become clear that regulation of mRNA stability is an important event in the control of gene expression. The stability of a large class of mammalian mRNAs is regulated by AU-rich elements (AREs) located in the mRNA 3' UTRs. mRNAs with AREs are inherently labile but as a response to different cellular cues they can become either stabilized, allowing expression of a given gene, or further destabilized to silence their expression. These tightly regulated mRNAs include many that encode growth factors, proto-oncogenes, cytokines, and cell cycle regulators. Failure to properly regulate their stability can therefore lead to uncontrolled expression of factors associated with cell proliferation and has been implicated in several human cancers. A number of transfactors that recognize AREs and regulate the translation and degradation of ARE-mRNAs have been identified. These transfactors are regulated by signal transduction pathways, which are often misregulated in cancers. This chapter focuses on the function of ARE-binding proteins with an emphasis on their regulation by signaling pathways and the implications for human cancer.
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