1
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Dinh NTM, Nguyen TM, Park MK, Lee CH. Y-Box Binding Protein 1: Unraveling the Multifaceted Role in Cancer Development and Therapeutic Potential. Int J Mol Sci 2024; 25:717. [PMID: 38255791 PMCID: PMC10815159 DOI: 10.3390/ijms25020717] [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: 11/11/2023] [Revised: 12/22/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
Y-box binding protein 1 (YBX1), a member of the Cold Shock Domain protein family, is overexpressed in various human cancers and is recognized as an oncogenic gene associated with poor prognosis. YBX1's functional diversity arises from its capacity to interact with a broad range of DNA and RNA molecules, implicating its involvement in diverse cellular processes. Independent investigations have unveiled specific facets of YBX1's contribution to cancer development. This comprehensive review elucidates YBX1's multifaceted role in cancer across cancer hallmarks, both in cancer cell itself and the tumor microenvironment. Based on this, we proposed YBX1 as a potential target for cancer treatment. Notably, ongoing clinical trials addressing YBX1 as a target in breast cancer and lung cancer have showcased its promise for cancer therapy. The ramp up in in vitro research on targeting YBX1 compounds also underscores its growing appeal. Moreover, the emerging role of YBX1 as a neural input is also proposed where the high level of YBX1 was strongly associated with nerve cancer and neurodegenerative diseases. This review also summarized the up-to-date advanced research on the involvement of YBX1 in pancreatic cancer.
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Affiliation(s)
- Ngoc Thi Minh Dinh
- College of Pharmacy, Dongguk University, Goyang 10326, Republic of Korea; (N.T.M.D.); (T.M.N.)
| | - Tuan Minh Nguyen
- College of Pharmacy, Dongguk University, Goyang 10326, Republic of Korea; (N.T.M.D.); (T.M.N.)
| | - Mi Kyung Park
- Department of BioHealthcare, Hwasung Medi-Science University, Hwaseong-si 18274, Republic of Korea
| | - Chang Hoon Lee
- College of Pharmacy, Dongguk University, Goyang 10326, Republic of Korea; (N.T.M.D.); (T.M.N.)
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2
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Eliseeva IA, Sogorina EM, Smolin EA, Kulakovskiy IV, Lyabin DN. Diverse Regulation of YB-1 and YB-3 Abundance in Mammals. BIOCHEMISTRY. BIOKHIMIIA 2022; 87:S48-S167. [PMID: 35501986 DOI: 10.1134/s000629792214005x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/13/2021] [Accepted: 09/17/2021] [Indexed: 06/14/2023]
Abstract
YB proteins are DNA/RNA binding proteins, members of the family of proteins with cold shock domain. Role of YB proteins in the life of cells, tissues, and whole organisms is extremely important. They are involved in transcription regulation, pre-mRNA splicing, mRNA translation and stability, mRNA packaging into mRNPs, including stress granules, DNA repair, and many other cellular events. Many processes, from embryonic development to aging, depend on when and how much of these proteins have been synthesized. Here we discuss regulation of the levels of YB-1 and, in part, of its homologs in the cell. Because the amount of YB-1 is immediately associated with its functioning, understanding the mechanisms of regulation of the protein amount invariably reveals the events where YB-1 is involved. Control over the YB-1 abundance may allow using this gene/protein as a therapeutic target in cancers, where an increased expression of the YBX1 gene often correlates with the disease severity and poor prognosis.
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Affiliation(s)
- Irina A Eliseeva
- Institute of Protein Research, Pushchino, Moscow Region, 142290, Russia.
| | | | - Egor A Smolin
- Institute of Protein Research, Pushchino, Moscow Region, 142290, Russia.
| | - Ivan V Kulakovskiy
- Institute of Protein Research, Pushchino, Moscow Region, 142290, Russia.
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Moscow, 119991, Russia
| | - Dmitry N Lyabin
- Institute of Protein Research, Pushchino, Moscow Region, 142290, Russia.
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3
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Rybalkina EY, Moiseeva NI. Role of YB-1 Protein in Inflammation. BIOCHEMISTRY. BIOKHIMIIA 2022; 87:S94-S202. [PMID: 35501989 DOI: 10.1134/s0006297922140085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 10/25/2021] [Accepted: 10/27/2021] [Indexed: 06/14/2023]
Abstract
This review discusses the role of the multifunctional DNA/RNA-binding protein YB-1 in inflammation. YB-1 performs multiple functions in the cell depending on its location: it acts as transcriptional factor for many genes in the nucleus, regulates translation and stability of mRNA in the cytoplasm, and becomes a paracrine factor when secreted from the cells. The review presents the data on the YB-1-mediated regulation of inflammation-associated genes, as well as results of studies on the YB-1 role in animal model of various inflammatory diseases, such as glomerulonephritis, tubulointerstitial fibrosis, and bacterial sepsis, and on the YB-1 expression in different human diseases associated with inflammatory processes in kidney, liver, and endometrium. The last section of the review presents several approaches to the regulation of YB-1 with small molecules in the treatment of inflammatory diseases.
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Affiliation(s)
- Ekaterina Yu Rybalkina
- Blokhin National Research Center of Oncology, Ministry of Health of the Russian Federation, Moscow, 115478, Russia
| | - Natalia I Moiseeva
- Blokhin National Research Center of Oncology, Ministry of Health of the Russian Federation, Moscow, 115478, Russia.
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4
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Yarahmadi A, Shahrokhi SZ, Mostafavi-Pour Z, Azarpira N. MicroRNAs in diabetic nephropathy: From molecular mechanisms to new therapeutic targets of treatment. Biochem Pharmacol 2020; 189:114301. [PMID: 33203517 DOI: 10.1016/j.bcp.2020.114301] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/20/2020] [Accepted: 10/21/2020] [Indexed: 12/16/2022]
Abstract
Despite considerable investigation in diabetic nephropathy (DN) pathogenesis and possible treatments, current therapies still do not provide competent prevention from disease progression to end-stage renal disease (ESRD) in most patients. Therefore, investigating exact molecular mechanisms and important mediators underlying DN may help design better therapeutic approaches for proper treatment. MicroRNAs (MiRNAs) are a class of small non-coding RNAs that play a crucial role in post-transcriptional regulation of many gene expression within the cells and present an excellent opportunity for new therapeutic approaches because their profile is often changed during many diseases, including DN. This review discusses the most important signaling pathways involved in DN and changes in miRNAs profile in each signaling pathway. We also suggest possible approaches for miRNA derived interventions for designing better treatment of DN.
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Affiliation(s)
- Amir Yarahmadi
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyedeh Zahra Shahrokhi
- Department of Laboratory Medicine, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zohreh Mostafavi-Pour
- Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Negar Azarpira
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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5
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Hessman CL, Hildebrandt J, Shah A, Brandt S, Bock A, Frye BC, Raffetseder U, Geffers R, Brunner-Weinzierl MC, Isermann B, Mertens PR, Lindquist JA. YB-1 Interferes with TNFα-TNFR Binding and Modulates Progranulin-Mediated Inhibition of TNFα Signaling. Int J Mol Sci 2020; 21:ijms21197076. [PMID: 32992926 PMCID: PMC7583764 DOI: 10.3390/ijms21197076] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 12/23/2022] Open
Abstract
Inflammation and an influx of macrophages are common elements in many diseases. Among pro-inflammatory cytokines, tumor necrosis factor α (TNFα) plays a central role by amplifying the cytokine network. Progranulin (PGRN) is a growth factor that binds to TNF receptors and interferes with TNFα-mediated signaling. Extracellular PGRN is processed into granulins by proteases released from immune cells. PGRN exerts anti-inflammatory effects, whereas granulins are pro-inflammatory. The factors coordinating these ambivalent functions remain unclear. In our study, we identify Y-box binding protein-1 (YB-1) as a candidate for this immune-modulating activity. Using a yeast-2-hybrid assay with YB-1 protein as bait, clones encoding for progranulin were selected using stringent criteria for strong interaction. We demonstrate that at physiological concentrations, YB-1 interferes with the binding of TNFα to its receptors in a dose-dependent manner using a flow cytometry-based binding assay. We show that YB-1 in combination with progranulin interferes with TNFα-mediated signaling, supporting the functionality with an NF-κB luciferase reporter assay. Together, we show that YB-1 displays immunomodulating functions by affecting the binding of TNFα to its receptors and influencing TNFα-mediated signaling via its interaction with progranulin.
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Affiliation(s)
- Christopher L. Hessman
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (C.L.H.); (J.H.); (A.S.); (S.B.); (A.B.)
| | - Josephine Hildebrandt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (C.L.H.); (J.H.); (A.S.); (S.B.); (A.B.)
| | - Aneri Shah
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (C.L.H.); (J.H.); (A.S.); (S.B.); (A.B.)
| | - Sabine Brandt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (C.L.H.); (J.H.); (A.S.); (S.B.); (A.B.)
| | - Antonia Bock
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (C.L.H.); (J.H.); (A.S.); (S.B.); (A.B.)
| | - Björn C. Frye
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, 52074 Aachen, Germany; (B.C.F.); (U.R.)
| | - Ute Raffetseder
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, 52074 Aachen, Germany; (B.C.F.); (U.R.)
| | - Robert Geffers
- Genome Analytics Research Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany;
| | | | - Berend Isermann
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, 04103 Leipzig, Germany;
| | - Peter R. Mertens
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (C.L.H.); (J.H.); (A.S.); (S.B.); (A.B.)
- Correspondence: (P.R.M.); (J.A.L.); Tel.: +49-391-6713236 (P.R.M.); +49-391-6724703 (J.A.L.)
| | - Jonathan A. Lindquist
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (C.L.H.); (J.H.); (A.S.); (S.B.); (A.B.)
- Correspondence: (P.R.M.); (J.A.L.); Tel.: +49-391-6713236 (P.R.M.); +49-391-6724703 (J.A.L.)
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6
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Lyabin DN, Eliseeva IA, Smolin EA, Doronin AN, Budkina KS, Kulakovskiy IV, Ovchinnikov LP. YB-3 substitutes YB-1 in global mRNA binding. RNA Biol 2020; 17:487-499. [PMID: 31944153 PMCID: PMC7237157 DOI: 10.1080/15476286.2019.1710050] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Y-box binding proteins are DNA- and RNA-binding proteins with an evolutionarily ancient and conserved cold shock domain. The Y-box binding protein 1 (YB-1) is the most studied due to its abundance in somatic cells. YB-1 is involved in a variety of cellular processes, including proliferation, differentiation and stress response. Here, using Ribo-Seq and RIP-Seq we confirm that YB-1 binds a wide range of mRNAs and globally acts as a translation inhibitor. Surprisingly, YBX1 knockout results in only minor alterations in the expression of other genes, mostly caused by changes in RNA abundance. But YB-3 mRNA is an exception: it is better translated in the absence of YB-1, thereby producing an increased amount of YB-3 and thus suggesting that its synthesis is under YB-1 negative control. We have shown that the set of mRNAs bound to YB-3 is strikingly similar to that of YB-1, and that the mRNA-binding by YB-3 is enhanced in the absence of YB-1, resulting in a similar global reduction of translation of bound mRNAs in YB-1-null cells. Thus, YB-3 acts as a substitute for YB-1 in mRNA binding and, probably, in global translational control.
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Affiliation(s)
- D N Lyabin
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Russia
| | - I A Eliseeva
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Russia
| | - E A Smolin
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Russia
| | - A N Doronin
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Russia.,Department of Bioengineering, BIOCAD, Lyubuchany, Russia.,Faculty of Molecular and Cellular Biotechnology, Pushchino State Institute of Natural Science, Pushchino, Russia
| | - K S Budkina
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Russia
| | - I V Kulakovskiy
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia.,Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.,Institute of Mathematical Problems of Biology RAS - the Branch of Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, Pushchino, Russia
| | - L P Ovchinnikov
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Russia
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7
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Hermert D, Martin IV, Reiss LK, Liu X, Breitkopf DM, Reimer KC, Alidousty C, Rauen T, Floege J, Ostendorf T, Weiskirchen R, Raffetseder U. The nucleic acid binding protein YB-1-controlled expression of CXCL-1 modulates kidney damage in liver fibrosis. Kidney Int 2019; 97:741-752. [PMID: 32061437 DOI: 10.1016/j.kint.2019.10.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 09/29/2019] [Accepted: 10/17/2019] [Indexed: 12/28/2022]
Abstract
Acute kidney injury is a common complication of advanced liver disease and increased mortality of these patients. Here, we analyzed the role of Y-box protein-1 (YB-1), a nucleic acid binding protein, in the bile duct ligation model of liver fibrosis and monitored liver and subsequent kidney damage. Following bile duct ligation, both serum levels of liver enzymes and expression of hepatic extracellular matrix components such as type I collagen were significantly reduced in mice with half-maximal YB-1 expression (Yb1+/-) as compared to their wild-type littermates. By contrast, expression of the chemokine CXCL1 was significantly augmented in these Yb1+/- mice. YB-1 was identified as a potent transcriptional repressor of the Cxcl1 gene. Precision-cut kidney slices from Yb1+/- mice revealed higher expression of the CXCL1 receptor CXCR2 as well as enhanced responsivity to CXCL1 compared to those from wild-type mice. Increased CXCL1 content in Yb1+/- mice led to pronounced bile duct ligation-induced damage of the kidneys monitored as parameters of tubular epithelial injury and immune cell infiltration. Pharmacological blockade of CXCR2 as well as application of an inhibitory anti-CXCL1 antibody significantly mitigated early systemic effects on the kidneys following bile duct ligation whereas it had only a modest impact on hepatic inflammation and function. Thus, our analyses provide direct evidence that YB-1 crucially contributes to hepatic fibrosis and modulates liver-kidney crosstalk by maintaining tight control over chemokine CXCL1 expression.
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Affiliation(s)
- Daniela Hermert
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Ina V Martin
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Lucy K Reiss
- Institute of Pharmacology and Toxicology, Medical Faculty, RWTH-Aachen University, Aachen, Germany
| | - Xiyang Liu
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Daniel M Breitkopf
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Katharina C Reimer
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | | | - Thomas Rauen
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Jürgen Floege
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Tammo Ostendorf
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), University Hospital RWTH-Aachen, Aachen, Germany
| | - Ute Raffetseder
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany.
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8
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Jiang W, Zhang Z, Sun Y, Zhang Y, Zhang L, Liu H, Peng R. Construction and analysis of a diabetic nephropathy related protein-protein interaction network reveals nine critical and functionally associated genes. Comput Biol Chem 2019; 83:107115. [PMID: 31561072 DOI: 10.1016/j.compbiolchem.2019.107115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 07/19/2019] [Accepted: 08/26/2019] [Indexed: 02/09/2023]
Abstract
Diabetic nephropathy (DN) is one of the common diabetic complications, but the mechanisms are still largely unknown. In this study, we constructed a DN related protein-protein interaction network (DNPPIN) on the basis of RNA-seq analysis of renal cortices of DN and normal mice, and the STRING database. We analyzed DNPPIN in detail revealing nine critical proteins which are central in DNPPIN, and contained in one network module which is functionally enriched in ribosome, nucleic acid binding and metabolic process. Overall, this study identified nine critical and functionally associated protein-coding genes concerning DN. These genes could be a starting point of future research towards the goal of elucidating the mechanisms of DN pathogenesis and progression.
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Affiliation(s)
- Wenhao Jiang
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing 400016, China; Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Zheng Zhang
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing 400016, China; Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Yan Sun
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing 400016, China; Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Yajuan Zhang
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing 400016, China; Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Luyu Zhang
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Handeng Liu
- Experimental Teaching Center, Chongqing Medical University, Chongqing 400016, China
| | - Rui Peng
- Department of Bioinformatics, Chongqing Medical University, Chongqing 400016, China.
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9
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Zhu X, Ye Y, Xu C, Gao C, Zhang Y, Zhou J, Lin W, Mao J. Protein phosphatase 2A modulates podocyte maturation and glomerular functional integrity in mice. Cell Commun Signal 2019; 17:91. [PMID: 31387591 PMCID: PMC6685276 DOI: 10.1186/s12964-019-0402-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 07/22/2019] [Indexed: 01/08/2023] Open
Abstract
Background Protein phosphorylation & dephosphorylation are ubiquitous cellular processes that allow for the nuanced and reversible regulation of protein activity. Protein phosphatase 2A (PP2A) is a multifunction phosphatase that is well expressed in all cell types of kidney during early renal development, though its functions in kidney remains to be elucidated. Methods PP2A conditional knock-out mice was generated with PP2A fl/fl mice that were crossed with Podocin-Cre mice. The phenotype of Pod-PP2A–KO mice (homozygous for the floxed PP2A allele with Podocin-Cre) and littermate PP2A fl/fl controls (homozygous for the PP2A allele but lacking Podocin-Cre) were further studied. Primary podocytes isolated from the Pod-PP2A-KO mice were cultured and they were then employed with sing label-free nano-LC − MS/MS technology on a Q-exactive followed by SIEVE processing to identify possible target molecular entities for the dephosphorylation effect of PP2A, in which Western blot and immunofluorescent staining were used to analyze further. Results Pod-PP2A–KO mice were developed with weight loss, growth retardation, proteinuria, glomerulopathy and foot process effacement, together with reduced expression of some slit diaphragm molecules and cytoskeleton rearrangement of podocytes. Y box protein 1 (YB-1) was identified to be the target molecule for dephosphorylation effect of PP2A. Furthermore, YB-1 phosphorylation was up-regulated in the Pod-PP2A–KO mice in contrast to the wild type controls, while total and un-phosphorylated YB-1 both was moderately down-regulated in podocytes from the Pod-PP2A-KO mice. Conclusion Our study revealed the important role of PP2A in regulating the development of foot processes and fully differentiated podocytes whereas fine-tuning of YB-1 via a post-translational modification by PP2A regulating its activity might be crucial for the functional integrity of podocytes and glomerular filtration barrier. Graphic abstract ![]()
Electronic supplementary material The online version of this article (10.1186/s12964-019-0402-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiujuan Zhu
- Department of Nephrology, The Children Hospital of Zhejiang University School of Medicine, #57 Zhugan Lane, Hangzhou, 310003, Zhejiang Province, People's Republic of China
| | - Yuhong Ye
- Department of Nephrology, The Children Hospital of Zhejiang University School of Medicine, #57 Zhugan Lane, Hangzhou, 310003, Zhejiang Province, People's Republic of China
| | - Chengxian Xu
- Department of Nephrology, The Children Hospital of Zhejiang University School of Medicine, #57 Zhugan Lane, Hangzhou, 310003, Zhejiang Province, People's Republic of China
| | - Cunji Gao
- Chronic Disease Research Institute, Department of Nutrition and Food Hygiene, Zhejiang University School of Public Health, Hangzhou, 310058, Zhejiang Province, People's Republic of China
| | - Yingying Zhang
- Department of Nephrology, The Children Hospital of Zhejiang University School of Medicine, #57 Zhugan Lane, Hangzhou, 310003, Zhejiang Province, People's Republic of China
| | - Jing Zhou
- Harvard Center for Polycystic Kidney Disease Research and Renal Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA02115, USA
| | - Weiqiang Lin
- Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou, 310058, Zhejiang Province, People's Republic of China.
| | - Jianhua Mao
- Department of Nephrology, The Children Hospital of Zhejiang University School of Medicine, #57 Zhugan Lane, Hangzhou, 310003, Zhejiang Province, People's Republic of China.
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10
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Hasan AA, von Websky K, Reichetzeder C, Tsuprykov O, Gaballa MMS, Guo J, Zeng S, Delić D, Tammen H, Klein T, Kleuser B, Hocher B. Mechanisms of GLP-1 receptor-independent renoprotective effects of the dipeptidyl peptidase type 4 inhibitor linagliptin in GLP-1 receptor knockout mice with 5/6 nephrectomy. Kidney Int 2019; 95:1373-1388. [PMID: 30979564 DOI: 10.1016/j.kint.2019.01.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 01/14/2019] [Accepted: 01/17/2019] [Indexed: 01/01/2023]
Abstract
Dipeptidyl peptidase type 4 (DPP-4) inhibitors were reported to have beneficial effects in experimental models of chronic kidney disease. The underlying mechanisms are not completely understood. However, these effects could be mediated via the glucagon-like peptide-1 (GLP-1)/GLP-1 receptor (GLP1R) pathway. Here we investigated the renal effects of the DPP-4 inhibitor linagliptin in Glp1r-/- knock out and wild-type mice with 5/6 nephrectomy (5/6Nx). Mice were allocated to groups: sham+wild type+placebo; 5/6Nx+ wild type+placebo; 5/6Nx+wild type+linagliptin; sham+knock out+placebo; 5/6Nx+knock out+ placebo; 5/6Nx+knock out+linagliptin. 5/6Nx caused the development of renal interstitial fibrosis, significantly increased plasma cystatin C and creatinine levels and suppressed renal gelatinase/collagenase, matrix metalloproteinase-1 and -13 activities; effects counteracted by linagliptin treatment in wildtype and Glp1r-/- mice. Two hundred ninety-eight proteomics signals were differentially regulated in kidneys among the groups, with 150 signals specific to linagliptin treatment as shown by mass spectrometry. Treatment significantly upregulated three peptides derived from collagen alpha-1(I), thymosin β4 and heterogeneous nuclear ribonucleoprotein A1 (HNRNPA1) and significantly downregulated one peptide derived from Y box binding protein-1 (YB-1). The proteomics results were further confirmed using western blot and immunofluorescence microscopy. Also, 5/6Nx led to significant up-regulation of renal transforming growth factor-β1 and pSMAD3 expression in wild type mice and linagliptin significantly counteracted this up-regulation in wild type and Glp1r-/- mice. Thus, the renoprotective effects of linagliptin cannot solely be attributed to the GLP-1/GLP1R pathway, highlighting the importance of other signaling pathways (collagen I homeostasis, HNRNPA1, YB-1, thymosin β4 and TGF-β1) influenced by DPP-4 inhibition.
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Affiliation(s)
- Ahmed A Hasan
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany; Institute of Nutritional Sciences, University of Potsdam, Potsdam, Germany; Department of Biochemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt; UP Transfer GmbH, University of Potsdam, Potsdam, Germany
| | - Karoline von Websky
- Institute of Nutritional Sciences, University of Potsdam, Potsdam, Germany; Center for Cardiovascular Research, Charité, Berlin, Germany
| | - Christoph Reichetzeder
- Institute of Nutritional Sciences, University of Potsdam, Potsdam, Germany; UP Transfer GmbH, University of Potsdam, Potsdam, Germany; Center for Cardiovascular Research, Charité, Berlin, Germany
| | - Oleg Tsuprykov
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany; Center for Cardiovascular Research, Charité, Berlin, Germany; IFLB GmbH, Institute for Laboratory Medicine, Berlin, Germany
| | - Mohamed M S Gaballa
- Institute of Nutritional Sciences, University of Potsdam, Potsdam, Germany; Faculty of Veterinary Medicine, Benha University, Toukh, Egypt
| | - Jingli Guo
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Shufei Zeng
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Denis Delić
- Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | | | - Thomas Klein
- Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Burkhard Kleuser
- Institute of Nutritional Sciences, University of Potsdam, Potsdam, Germany
| | - Berthold Hocher
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany; LADR GmbH Neuruppin MVZ, Neuruppin, Germany; Department of Basic Medicine, Medical college of Hunan Normal University, Changsha, China.
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11
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Rouas R, Merimi M, Najar M, El Zein N, Fayyad‐Kazan M, Berehab M, Agha D, Bron D, Burny A, Rachidi W, Badran B, Lewalle P, Fayyad‐Kazan H. Human CD8
+
CD25
+
CD127
low
regulatory T cells: microRNA signature and impact on TGF‐β and IL‐10 expression. J Cell Physiol 2019; 234:17459-17472. [DOI: 10.1002/jcp.28367] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 01/20/2019] [Accepted: 01/24/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Redouane Rouas
- Laboratory of Experimental Hematology Institut Jules Bordet, Université Libre de Bruxelles Bruxelles Belgium
| | - Makram Merimi
- Laboratory of Experimental Hematology Institut Jules Bordet, Université Libre de Bruxelles Bruxelles Belgium
| | - Mehdi Najar
- Laboratory of Clinical Cell Therapy Institut Jules Bordet, Université Libre de Bruxelles (ULB) Brussels Belgium
| | - Nabil El Zein
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences I Lebanese University Hadath Lebanon
| | - Mohammad Fayyad‐Kazan
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences I Lebanese University Hadath Lebanon
| | - Mimoune Berehab
- Laboratory of Experimental Hematology Institut Jules Bordet, Université Libre de Bruxelles Bruxelles Belgium
| | - Douaa Agha
- Laboratory of Experimental Hematology Institut Jules Bordet, Université Libre de Bruxelles Bruxelles Belgium
| | - Dominique Bron
- Laboratory of Experimental Hematology Institut Jules Bordet, Université Libre de Bruxelles Bruxelles Belgium
| | - Arsene Burny
- Laboratory of Experimental Hematology Institut Jules Bordet, Université Libre de Bruxelles Bruxelles Belgium
| | - Walid Rachidi
- Univ. Grenoble Alpes, SYMMES/CIBEST UMR 5819 UGA‐CNRS‐CEA, INAC/CEA‐Grenoble Grenoble France
| | - Bassam Badran
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences I Lebanese University Hadath Lebanon
| | - Philippe Lewalle
- Laboratory of Experimental Hematology Institut Jules Bordet, Université Libre de Bruxelles Bruxelles Belgium
| | - Hussein Fayyad‐Kazan
- Laboratory of Experimental Hematology Institut Jules Bordet, Université Libre de Bruxelles Bruxelles Belgium
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences I Lebanese University Hadath Lebanon
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12
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Martínez-Martínez S, Lozano-Vidal N, López-Maderuelo MD, Jiménez-Borreguero LJ, Armesilla ÁL, Redondo JM. Cardiomyocyte calcineurin is required for the onset and progression of cardiac hypertrophy and fibrosis in adult mice. FEBS J 2018; 286:46-65. [PMID: 30548183 DOI: 10.1111/febs.14718] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 12/03/2018] [Indexed: 12/19/2022]
Abstract
Previous studies have demonstrated that activation of calcineurin induces pathological cardiac hypertrophy (CH). In these studies, loss-of-function was mostly achieved by systemic administration of the calcineurin inhibitor cyclosporin A. The lack of conditional knockout models for calcineurin function has impeded progress toward defining the role of this protein during the onset and the development of CH in adults. Here, we exploited a mouse model of CH based on the infusion of a hypertensive dose of angiotensin II (AngII) to model the role of calcineurin in CH in adulthood. AngII-induced CH in adult mice was reduced by treatment with cyclosporin A, without affecting the associated increase in blood pressure, and also by induction of calcineurin deletion in adult mouse cardiomyocytes, indicating that cardiomyocyte calcineurin is required for AngII-induced CH. Surprisingly, cardiac-specific deletion of calcineurin, but not treatment of mice with cyclosporin A, significantly reduced AngII-induced cardiac fibrosis and apoptosis. Analysis of profibrotic genes revealed that AngII-induced expression of Tgfβ family members and Lox was not inhibited by cyclosporin A but was markedly reduced by cardiac-specific calcineurin deletion. These results show that AngII induces a direct, calcineurin-dependent prohypertrophic effect in cardiomyocytes, as well as a systemic hypertensive effect that is independent of calcineurin activity.
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Affiliation(s)
- Sara Martínez-Martínez
- Gene Regulation in Cardiovascular Remodeling and Inflammation Group, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain.,Centro de Investigaciones Biomédicas en RED en Enfermedades Cardiovasculares (CIBERCV), Spain
| | - Noelia Lozano-Vidal
- Gene Regulation in Cardiovascular Remodeling and Inflammation Group, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - María Dolores López-Maderuelo
- Gene Regulation in Cardiovascular Remodeling and Inflammation Group, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain.,Centro de Investigaciones Biomédicas en RED en Enfermedades Cardiovasculares (CIBERCV), Spain
| | - Luis J Jiménez-Borreguero
- Centro de Investigaciones Biomédicas en RED en Enfermedades Cardiovasculares (CIBERCV), Spain.,Hospital de La Princesa, Madrid, Spain
| | - Ángel Luis Armesilla
- Centro de Investigaciones Biomédicas en RED en Enfermedades Cardiovasculares (CIBERCV), Spain.,Research Institute in Healthcare Science, School of Pharmacy, Faculty of Science and Engineering, University of Wolverhampton, UK
| | - Juan Miguel Redondo
- Gene Regulation in Cardiovascular Remodeling and Inflammation Group, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain.,Centro de Investigaciones Biomédicas en RED en Enfermedades Cardiovasculares (CIBERCV), Spain
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13
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Lindquist JA, Mertens PR. Cold shock proteins: from cellular mechanisms to pathophysiology and disease. Cell Commun Signal 2018; 16:63. [PMID: 30257675 PMCID: PMC6158828 DOI: 10.1186/s12964-018-0274-6] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 09/13/2018] [Indexed: 12/21/2022] Open
Abstract
Cold shock proteins are multifunctional RNA/DNA binding proteins, characterized by the presence of one or more cold shock domains. In humans, the best characterized members of this family are denoted Y-box binding proteins, such as Y-box binding protein-1 (YB-1). Biological activities range from the regulation of transcription, splicing and translation, to the orchestration of exosomal RNA content. Indeed, the secretion of YB-1 from cells via exosomes has opened the door to further potent activities. Evidence links a skewed cold shock protein expression pattern with cancer and inflammatory diseases. In this review the evidence for a causative involvement of cold shock proteins in disease development and progression is summarized. Furthermore, the potential application of cold shock proteins for diagnostics and as targets for therapy is elucidated.
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Affiliation(s)
- Jonathan A Lindquist
- Clinic for Nephrology and Hypertension, Diabetology and Endocrinology, Otto-von-Guericke University Magdeburg, Leipziger Strasse 44, 39120, Magdeburg, Germany
| | - Peter R Mertens
- Clinic for Nephrology and Hypertension, Diabetology and Endocrinology, Otto-von-Guericke University Magdeburg, Leipziger Strasse 44, 39120, Magdeburg, Germany.
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14
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Dewanjee S, Bhattacharjee N. MicroRNA: A new generation therapeutic target in diabetic nephropathy. Biochem Pharmacol 2018; 155:32-47. [DOI: 10.1016/j.bcp.2018.06.017] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/20/2018] [Indexed: 12/11/2022]
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15
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Yang F, Wei J, Zhang S, Zhang X. Shrimp miR-S8 Suppresses the Stemness of Human Melanoma Stem-like Cells by Targeting the Transcription Factor YB-1. Cancer Res 2017; 77:5543-5553. [PMID: 28855207 DOI: 10.1158/0008-5472.can-17-1375] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 08/01/2017] [Accepted: 08/22/2017] [Indexed: 11/16/2022]
Abstract
Cross-species regulation of gene expression by microRNA is a possible untapped opportunity for miRNA-based therapy. In this study, we report a novel approach to ablate melanoma stem-like cells by targeting the transcription factor YB-1, which is significantly and selectively upregulated in these cells in melanoma. Silencing YB-1 expression was sufficient to significantly inhibit the stemness of melanoma stem-like cells. In exploring YB-1 targeting, we discovered that the shrimp microRNA miR-S8 could suppress human YB-1 expression in melanoma stem-like cells. Mechanistic investigations revealed that miR-S8 recognized the 3'UTR of YB-1 mRNA and mediated its degradation. In tumor cell and xenograft experiments, miR-S8 suppressed the tumorigenic capacity of melanoma stem-like cells by targeting human YB-1. Overall, our results illuminated a novel aspect of miRNA-mediated cross-species gene expression and its use in regulating cancer stem-like cells. Cancer Res; 77(20); 5543-53. ©2017 AACR.
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Affiliation(s)
- Fan Yang
- College of Life Sciences and Laboratory for Marine Biology and Biotechnology of Qingdao National Laboratory for Marine Science and Technology, Zhejiang University, Hangzhou, People's Republic of China
| | - Jun Wei
- College of Life Sciences and Laboratory for Marine Biology and Biotechnology of Qingdao National Laboratory for Marine Science and Technology, Zhejiang University, Hangzhou, People's Republic of China
| | - Song Zhang
- College of Life Sciences and Laboratory for Marine Biology and Biotechnology of Qingdao National Laboratory for Marine Science and Technology, Zhejiang University, Hangzhou, People's Republic of China
| | - Xiaobo Zhang
- College of Life Sciences and Laboratory for Marine Biology and Biotechnology of Qingdao National Laboratory for Marine Science and Technology, Zhejiang University, Hangzhou, People's Republic of China.
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16
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Bhreathnach U, Griffin B, Brennan E, Ewart L, Higgins D, Murphy M. Profibrotic IHG-1 complexes with renal disease associated HSPA5 and TRAP1 in mitochondria. Biochim Biophys Acta Mol Basis Dis 2017; 1863:896-906. [PMID: 28115289 DOI: 10.1016/j.bbadis.2017.01.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 01/17/2017] [Accepted: 01/19/2017] [Indexed: 01/01/2023]
Abstract
The highly conserved mitochondrial protein induced in high glucose-1 (IHG-1) functions to maintain mitochondrial quality and is associated with the development of fibrosis in diabetic nephropathy. Towards identifying novel approaches to treating diabetic kidney disease, IHG-1-protein-protein interactions were investigated using epitope-tagged immunoprecipitation analyses followed by mass spectrometry. Here we show that IHG-1 is solely expressed in mitochondria and localised to the inner mitochondrial membrane, the region where mitochondrial reactive oxygen species are generated. Chaperones HSPA5 and TRAP1 and cold shock protein YBX1 were identified as IHG-1 binding partners. All three proteins are important in the cellular response to oxidative stress and play important roles in mitochondrial transcription and DNA repair. Both redox imbalance and IHG-1 stimulate TGF-β signalling. IHG-1, HSPA5 and YBX1 all show increased expression in diabetic nephropathy, chronic kidney disease and in the Unilateral Ureteral Obstruction model of kidney fibrosis. Increased IHG-1 expression in UUO correlated with loss of TRAP1 expression. IHG-1 may target TRAP1 for degradation. When IHG-1 is no longer localised to mitochondria, it retains the ability to interact with the cold shock protein YBX1, facilitating anti-fibrotic actions in the nucleus. Targeting these proteins may offer alternative treatments for fibrotic kidney disease.
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Affiliation(s)
- Una Bhreathnach
- Conway Institute, School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland
| | - Brenda Griffin
- Conway Institute, School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland
| | - Eoin Brennan
- Conway Institute, School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland
| | - Leah Ewart
- Conway Institute, School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland
| | - Debra Higgins
- Conway Institute, School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland
| | - Madeline Murphy
- Conway Institute, School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland.
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17
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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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18
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Torchiaro E, Lorenzato A, Olivero M, Valdembri D, Gagliardi PA, Gai M, Erriquez J, Serini G, Di Renzo MF. Peritoneal and hematogenous metastases of ovarian cancer cells are both controlled by the p90RSK through a self-reinforcing cell autonomous mechanism. Oncotarget 2016; 7:712-28. [PMID: 26625210 PMCID: PMC4808028 DOI: 10.18632/oncotarget.6412] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 11/15/2015] [Indexed: 12/13/2022] Open
Abstract
The molecular mechanisms orchestrating peritoneal and hematogenous metastases of ovarian cancer cells are assumed to be distinct. We studied the p90RSK family of serine/threonine kinases that lie downstream the RAS-ERK/MAPK pathway and modulate a variety of cellular processes including cell proliferation, survival, motility and invasiveness. We found the RSK1 and RSK2 isoforms expressed in a number of human ovarian cancer cell lines, where they played redundant roles in sustaining in vitro motility and invasiveness. In vivo, silencing of both RSK1 and RSK2 almost abrogated short-term and long-term metastatic engraftment of ovarian cancer cells in the peritoneum. In addition, RSK1/RSK2 silenced cells failed to colonize the lungs after intravenous injection and to form hematogenous metastasis from subcutaneous xenografts. RSK1/RSK2 suppression resulted in lessened ovarian cancer cell spreading on endogenous fibronectin (FN). Mechanistically, RSK1/RSK2 knockdown diminished FN transcription, α5β1 integrin activation and TGF-β1 translation. Reduced endogenous FN deposition and TGF-β1 secretion depended on the lack of activating phosphorylation of the transcription/translation factor YB-1 by p90RSK. Altogether data show how p90RSK activates a self-reinforcing cell autonomous pro-adhesive circuit necessary for metastatic seeding of ovarian cancer cells. Thus, p90RSK inhibitors might hinder both the hematogenous and the peritoneal metastatic spread of human ovarian cancer.
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Affiliation(s)
- Erica Torchiaro
- Department of Oncology, University of Torino School of Medicine, Turin, Italy.,Candiolo Cancer Institute, Fondazione del Piemonte per l'Oncologia (FPO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Candiolo, Italy
| | - Annalisa Lorenzato
- Department of Oncology, University of Torino School of Medicine, Turin, Italy.,Candiolo Cancer Institute, Fondazione del Piemonte per l'Oncologia (FPO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Candiolo, Italy
| | - Martina Olivero
- Department of Oncology, University of Torino School of Medicine, Turin, Italy.,Candiolo Cancer Institute, Fondazione del Piemonte per l'Oncologia (FPO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Candiolo, Italy
| | - Donatella Valdembri
- Department of Oncology, University of Torino School of Medicine, Turin, Italy.,Candiolo Cancer Institute, Fondazione del Piemonte per l'Oncologia (FPO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Candiolo, Italy
| | - Paolo Armando Gagliardi
- Department of Oncology, University of Torino School of Medicine, Turin, Italy.,Candiolo Cancer Institute, Fondazione del Piemonte per l'Oncologia (FPO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Candiolo, Italy
| | - Marta Gai
- Department of Molecular Biotechnologies and Health Sciences, University of Turin at the Molecular Biotechnology Center, Torino, Italy
| | - Jessica Erriquez
- Candiolo Cancer Institute, Fondazione del Piemonte per l'Oncologia (FPO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Candiolo, Italy
| | - Guido Serini
- Department of Oncology, University of Torino School of Medicine, Turin, Italy.,Candiolo Cancer Institute, Fondazione del Piemonte per l'Oncologia (FPO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Candiolo, Italy
| | - Maria Flavia Di Renzo
- Department of Oncology, University of Torino School of Medicine, Turin, Italy.,Candiolo Cancer Institute, Fondazione del Piemonte per l'Oncologia (FPO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Candiolo, Italy
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19
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Wang J, Gibbert L, Djudjaj S, Alidousty C, Rauen T, Kunter U, Rembiak A, Enders D, Jankowski V, Braun GS, Floege J, Ostendorf T, Raffetseder U. Therapeutic nuclear shuttling of YB-1 reduces renal damage and fibrosis. Kidney Int 2016; 90:1226-1237. [PMID: 27591085 DOI: 10.1016/j.kint.2016.07.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 06/30/2016] [Accepted: 07/07/2016] [Indexed: 12/15/2022]
Abstract
Virtually all chronic kidney diseases progress towards tubulointerstitial fibrosis. In vitro, Y-box protein-1 (YB-1) acts as a central regulator of gene transcription and translation of several fibrosis-related genes. However, it remains to be determined whether its pro- or antifibrotic propensities prevail in disease. Therefore, we investigated the outcome of mice with half-maximal YB-1 expression in a model of renal fibrosis induced by unilateral ureteral obstruction. Yb1+/- animals displayed markedly reduced tubular injury, immune cell infiltration and renal fibrosis following ureteral obstruction. The increase in renal YB-1 was limited to a YB-1 variant nonphosphorylated at serine 102 but phosphorylated at tyrosine 99. During ureteral obstruction, YB-1 localized to the cytoplasm, directly stabilizing Col1a1 mRNA, thus promoting fibrosis. Conversely, the therapeutic forced nuclear compartmentalization of phosphorylated YB-1 by the small molecule HSc025 mediated repression of the Col1a1 promoter and attenuated fibrosis following ureteral obstruction. Blunting of these effects in Yb1+/- mice confirmed involvement of YB-1. HSc025 even reduced tubulointerstitial damage when applied at later time points during maximum renal damage. Thus, phosphorylation and subcellular localization of YB-1 determines its effect on renal fibrosis in vivo. Hence, induced nuclear YB-1 shuttling may be a novel antifibrotic treatment strategy in renal diseases with the potential of damage reversal.
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Affiliation(s)
- Jialin Wang
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Lydia Gibbert
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Sonja Djudjaj
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Christina Alidousty
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Thomas Rauen
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Uta Kunter
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Andreas Rembiak
- Institute of Organic Chemistry, RWTH Aachen University, Aachen, Germany
| | - Dieter Enders
- Institute of Organic Chemistry, RWTH Aachen University, Aachen, Germany
| | - Vera Jankowski
- Institute of Molecular Cardiovascular Research, RWTH Aachen University, Aachen, Germany
| | - Gerald S Braun
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Jürgen Floege
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Tammo Ostendorf
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Ute Raffetseder
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany.
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20
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El-Naggar AM, Veinotte CJ, Cheng H, Grunewald TGP, Negri GL, Somasekharan SP, Corkery DP, Tirode F, Mathers J, Khan D, Kyle AH, Baker JH, LePard NE, McKinney S, Hajee S, Bosiljcic M, Leprivier G, Tognon CE, Minchinton AI, Bennewith KL, Delattre O, Wang Y, Dellaire G, Berman JN, Sorensen PH. Translational Activation of HIF1α by YB-1 Promotes Sarcoma Metastasis. Cancer Cell 2015; 27:682-97. [PMID: 25965573 DOI: 10.1016/j.ccell.2015.04.003] [Citation(s) in RCA: 206] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 02/28/2015] [Accepted: 04/10/2015] [Indexed: 12/27/2022]
Abstract
Metastatic dissemination is the leading cause of death in cancer patients, which is particularly evident for high-risk sarcomas such as Ewing sarcoma, osteosarcoma, and rhabdomyosarcoma. Previous research identified a crucial role for YB-1 in the epithelial-to-mesenchymal transition (EMT) and metastasis of epithelial malignancies. Based on clinical data and two distinct animal models, we now report that YB-1 is also a major metastatic driver in high-risk sarcomas. Our data establish YB-1 as a critical regulator of hypoxia-inducible factor 1α (HIF1α) expression in sarcoma cells. YB-1 enhances HIF1α protein expression by directly binding to and activating translation of HIF1A messages. This leads to HIF1α-mediated sarcoma cell invasion and enhanced metastatic capacity in vivo, highlighting a translationally regulated YB-1-HIF1α axis in sarcoma metastasis.
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Affiliation(s)
- Amal M El-Naggar
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 2B5, Canada; Department of Molecular Oncology, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Chansey J Veinotte
- Department of Pediatrics, IWK Health Centre, Halifax, NS B3K 6R8, Canada
| | - Hongwei Cheng
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC V5Z 1M9, Canada
| | - Thomas G P Grunewald
- Laboratory for Pediatric Sarcoma Biology, Institute of Pathology, LMU Munich, Thalkirchner Strasse 36, 80337 Munich, Germany
| | - Gian Luca Negri
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 2B5, Canada; Department of Molecular Oncology, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Syam Prakash Somasekharan
- Department of Molecular Oncology, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Dale P Corkery
- Department of Pediatrics, IWK Health Centre, Halifax, NS B3K 6R8, Canada
| | - Franck Tirode
- INSERM U830, Laboratoire de génétique et biologie des cancers, Institut Curie, 75248 Paris, France
| | - Joan Mathers
- Department of Molecular Oncology, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Debjit Khan
- Department of Molecular Oncology, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Alastair H Kyle
- Department of Integrative Oncology, Radiation Biology Unit, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Jennifer H Baker
- Department of Integrative Oncology, Radiation Biology Unit, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Nancy E LePard
- Department of Integrative Oncology, Radiation Biology Unit, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Steven McKinney
- Department of Molecular Oncology, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Shamil Hajee
- Department of Molecular Oncology, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Momir Bosiljcic
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 2B5, Canada; Department of Integrative Oncology, Radiation Biology Unit, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Gabriel Leprivier
- Department of Molecular Oncology, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Cristina E Tognon
- Department of Molecular Oncology, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Andrew I Minchinton
- Department of Integrative Oncology, Radiation Biology Unit, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Kevin L Bennewith
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 2B5, Canada; Department of Integrative Oncology, Radiation Biology Unit, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Olivier Delattre
- INSERM U830, Laboratoire de génétique et biologie des cancers, Institut Curie, 75248 Paris, France
| | - Yuzhuo Wang
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC V5Z 1M9, Canada
| | - Graham Dellaire
- Department of Pathology, Dalhousie University, Halifax, NS B3H 4R2, Canada
| | - Jason N Berman
- Department of Pediatrics, IWK Health Centre, Halifax, NS B3K 6R8, Canada; Department of Pathology, Dalhousie University, Halifax, NS B3H 4R2, Canada; Department of Pediatrics, Dalhousie University, Halifax, NS B3H 4R2, Canada
| | - Poul H Sorensen
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 2B5, Canada; Department of Molecular Oncology, British Columbia Cancer Research Center, Vancouver, BC V5Z 1L3, Canada.
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Yue MM, Lv K, Meredith SC, Martindale JL, Gorospe M, Schuger L. Novel RNA-binding protein P311 binds eukaryotic translation initiation factor 3 subunit b (eIF3b) to promote translation of transforming growth factor β1-3 (TGF-β1-3). J Biol Chem 2014; 289:33971-83. [PMID: 25336651 DOI: 10.1074/jbc.m114.609495] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
P311, a conserved 8-kDa intracellular protein expressed in brain, smooth muscle, regenerating tissues, and malignant glioblastomas, represents the first documented stimulator of TGF-β1-3 translation in vitro and in vivo. Here we initiated efforts to define the mechanism underlying P311 function. PONDR® (Predictor Of Naturally Disordered Regions) analysis suggested and CD confirmed that P311 is an intrinsically disordered protein, therefore requiring an interacting partner to acquire tertiary structure and function. Immunoprecipitation coupled with mass spectroscopy identified eIF3 subunit b (eIF3b) as a novel P311 binding partner. Immunohistochemical colocalization, GST pulldown, and surface plasmon resonance studies revealed that P311-eIF3b interaction is direct and has a Kd of 1.26 μm. Binding sites were mapped to the non-canonical RNA recognition motif of eIF3b and a central 11-amino acid-long region of P311, here referred to as eIF3b binding motif. Disruption of P311-eIF3b binding inhibited translation of TGF-β1, 2, and 3, as indicated by luciferase reporter assays, polysome fractionation studies, and Western blot analysis. RNA precipitation assays after UV cross-linking and RNA-protein EMSA demonstrated that P311 binds directly to TGF-β 5'UTRs mRNAs through a previously unidentified RNA recognition motif-like motif. Our results demonstrate that P311 is a novel RNA-binding protein that, by interacting with TGF-βs 5'UTRs and eIF3b, stimulates the translation of TGF-β1, 2, and 3.
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Affiliation(s)
| | | | - Stephen C Meredith
- From the Departments of Pathology and Biochemistry and Molecular Biology, The University of Chicago, Chicago, Illinois 60637 and
| | - Jennifer L Martindale
- the Laboratory of Genetics, NIA, National Institutes of Health, Baltimore, Maryland 21224
| | - Myriam Gorospe
- the Laboratory of Genetics, NIA, National Institutes of Health, Baltimore, Maryland 21224
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22
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Willis WL, Hariharan S, David JJ, Strauch AR. Transglutaminase-2 mediates calcium-regulated crosslinking of the Y-box 1 (YB-1) translation-regulatory protein in TGFβ1-activated myofibroblasts. J Cell Biochem 2014; 114:2753-69. [PMID: 23804301 DOI: 10.1002/jcb.24624] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 06/25/2013] [Indexed: 01/23/2023]
Abstract
Myofibroblast differentiation is required for wound healing and accompanied by activation of smooth muscle α-actin (SMαA) gene expression. The stress-response protein, Y-box binding protein-1 (YB-1) binds SMαA mRNA and regulates its translational activity. Activation of SMαA gene expression in human pulmonary myofibroblasts by TGFβ1 was associated with formation of denaturation-resistant YB-1 oligomers with selective affinity for a known translation-silencer sequence in SMαA mRNA. We have determined that YB-1 is a substrate for the protein-crosslinking enzyme transglutaminase 2 (TG2) that catalyzes calcium-dependent formation of covalent γ-glutamyl-isopeptide linkages in response to reactive oxygen signaling. TG2 transamidation reactions using intact cells, cell lysates, and recombinant YB-1 revealed covalent crosslinking of the 50 kDa YB-1 polypeptide into protein oligomers that were distributed during SDS-PAGE over a 75-250 kDa size range. In vitro YB-1 transamidation required nanomolar levels of calcium and was enhanced by the presence of SMαA mRNA. In human pulmonary fibroblasts, YB-1 crosslinking was inhibited by (a) anti-oxidant cystamine, (b) the reactive-oxygen antagonist, diphenyleneiodonium, (c) competitive inhibition of TG2 transamidation using the aminyl-surrogate substrate, monodansylcadaverine, and (d) transfection with small-interfering RNA specific for human TG2 mRNA. YB-1 crosslinking was partially reversible as a function of oligomer-substrate availability and TG2 enzyme concentration. Intracellular calcium accumulation and peroxidative stress in injury-activated myofibroblasts may govern SMαA mRNA translational activity during wound healing via TG2-mediated crosslinking of the YB-1 mRNA-binding protein.
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Affiliation(s)
- William L Willis
- Department of Physiology and Cell Biology, The Integrated Biomedical Sciences Graduate Program, and the Ohio State Biochemistry Program, Dorothy M. Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, Ohio, 43210
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23
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Interaction of Hepatitis C Viral Proteins with Cellular Oncoproteins in the Induction of Liver Cancer. ACTA ACUST UNITED AC 2014. [DOI: 10.1155/2014/351407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Hepatitis C virus infection is a major health problem all over the world. A large proportion of patients infected by HCV develop liver cirrhosis or cancer. However, the mechanism(s) remain to be elucidated. Since HCV does not carry any known oncogene, it is thought that interaction between virally encoded proteins and host proteins is responsible for carcinogenesis. Many crucial interactions between HCV-encoded proteins and host proteins have been reported. In this review we focus on the interaction of viral proteins with important regulators of cell cycle—oncoproteins YB-1, p53, and cyclin D1—which play a major role in cell proliferation, apoptosis, DNA repair, and genomic stability. Genetic variants of HCV accumulate in patients and alter these interactions of host cell proteins. It is a battle between the virus and host and the final outcome depends on the winner; if the host succeeds in clearing the virus the patient may not develop serious liver diseases. On the other hand, if the virus dominates by evolving quasispecies which code for altered proteins that interact differently with host proteins, or induce mutations in host protooncogenes, then the patient may develop liver cirrhosis and/or liver cancer.
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24
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Lindquist JA, Brandt S, Bernhardt A, Zhu C, Mertens PR. The role of cold shock domain proteins in inflammatory diseases. J Mol Med (Berl) 2014; 92:207-16. [PMID: 24562821 DOI: 10.1007/s00109-014-1136-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Revised: 01/17/2014] [Accepted: 02/10/2014] [Indexed: 12/15/2022]
Abstract
Cold shock domain proteins are characterized by the presence of one or more evolutionarily conserved cold shock domains, which each possess two nucleic acid-binding motifs. These proteins exert pleiotropic functions in cells via their ability to bind single-stranded RNA and/or DNA, thus allowing them to serve as transcriptional as well as translational regulators. Not only can they regulate their own expression, but they also regulate the expression of a number of pro- and anti-inflammatory cytokines, as well as cytokine receptors, making them key players in the orchestration of inflammatory processes and immune cell phenotypes. To add to their complexity, the expression of cold shock domain proteins is induced by cellular stress. At least one cold shock domain protein is actively secreted and binds to specific cell surface receptors, thereby influencing the proliferative and migratory capacity of the cell. The presence of cold shock domain proteins in the blood and/or urine of patients with cancer or inflammatory disease, as well as the identification of autoantibodies directed against these proteins make them potential targets of therapeutic interest.
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Affiliation(s)
- Jonathan A Lindquist
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Leipziger Strasse 44, 39120, Magdeburg, Germany
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25
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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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26
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van Roeyen CRC, Scurt FG, Brandt S, Kuhl VA, Martinkus S, Djudjaj S, Raffetseder U, Royer HD, Stefanidis I, Dunn SE, Dooley S, Weng H, Fischer T, Lindquist JA, Mertens PR. Cold shock Y-box protein-1 proteolysis autoregulates its transcriptional activities. Cell Commun Signal 2013; 11:63. [PMID: 24103640 PMCID: PMC3766096 DOI: 10.1186/1478-811x-11-63] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Accepted: 08/12/2013] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The Y-box protein-1 (YB-1) fulfills pleiotropic functions relating to gene transcription, mRNA processing, and translation. It remains elusive how YB-1 shuttling into the nuclear and cytoplasmic compartments is regulated and whether limited proteolysis by the 20S proteasome releases fragments with distinct function(s) and subcellular distribution(s). RESULTS To address these questions, mapping of domains responsible for subcellular targeting was performed. Three nuclear localization signals (NLS) were identified. NLS-1 (aa 149-156) and NLS-2 (aa 185-194) correspond to residues with unknown function(s), whereas NLS-3 (aa 276-292) matches with a designated multimerization domain. Nuclear export signal(s) were not identified. Endoproteolytic processing by the 20S proteasome before glycine 220 releases a carboxy-terminal fragment (CTF), which localized to the nucleus, indicating that NLS-3 is operative. Genotoxic stress induced proteolytic cleavage and nuclear translocation of the CTF. Co-expression of the CTF and full-length YB-1 resulted in an abrogated transcriptional activation of the MMP-2 promoter, indicating an autoregulatory inhibitory loop, whereas it fulfilled similar trans-repressive effects on the collagen type I promoter. CONCLUSION Compartmentalization of YB-1 protein derivatives is controlled by distinct NLS, one of which targets a proteolytic cleavage product to the nucleus. We propose a model for an autoregulatory negative feedback loop that halts unlimited transcriptional activation.
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Affiliation(s)
- Claudia R C van Roeyen
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Leipziger Str 44, 39120 Magdeburg, Germany.
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27
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Abstract
Hanahan and Weinberg have proposed the ‘hallmarks of cancer’ to cover the biological changes required for the development and persistence of tumours [Hanahan and Weinberg (2011) Cell 144, 646–674]. We have noted that many of these cancer hallmarks are facilitated by the multifunctional protein YB-1 (Y-box-binding protein 1). In the present review we evaluate the literature and show how YB-1 modulates/regulates cellular signalling pathways within each of these hallmarks. For example, we describe how YB-1 regulates multiple proliferation pathways, overrides cell-cycle check points, promotes replicative immortality and genomic instability, may regulate angiogenesis, has a role in invasion and metastasis, and promotes inflammation. We also argue that there is strong and sufficient evidence to suggest that YB-1 is an excellent molecular marker of cancer progression that could be used in the clinic, and that YB-1 could be a useful target for cancer therapy.
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28
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Bowen T, Jenkins RH, Fraser DJ. MicroRNAs, transforming growth factor beta-1, and tissue fibrosis. J Pathol 2012; 229:274-85. [DOI: 10.1002/path.4119] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 08/31/2012] [Accepted: 09/19/2012] [Indexed: 12/22/2022]
Affiliation(s)
- Timothy Bowen
- Institute of Molecular and Experimental Medicine, School of Medicine; Cardiff University; UK
| | - Robert H Jenkins
- Institute of Molecular and Experimental Medicine, School of Medicine; Cardiff University; UK
| | - Donald J Fraser
- Institute of Molecular and Experimental Medicine, School of Medicine; Cardiff University; UK
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29
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Wei WJ, Mu SR, Heiner M, Fu X, Cao LJ, Gong XF, Bindereif A, Hui J. YB-1 binds to CAUC motifs and stimulates exon inclusion by enhancing the recruitment of U2AF to weak polypyrimidine tracts. Nucleic Acids Res 2012; 40:8622-36. [PMID: 22730292 PMCID: PMC3458536 DOI: 10.1093/nar/gks579] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The human Y box-binding protein-1 (YB-1) is a deoxyribonucleic acid (DNA)/ribonucleic acid (RNA)-binding protein with pleiotropic functions. Besides its roles in the regulation of transcription and translation, several recent studies indicate that YB-1 is a spliceosome-associated protein and is involved in alternative splicing, but the underlying mechanism has remained elusive. Here, we define both CAUC and CACC as high-affinity binding motifs for YB-1 by systematic evolution of ligands by exponential enrichment (SELEX) and demonstrate that these newly defined motifs function as splicing enhancers. Interestingly, on the endogenous CD44 gene, YB-1 appears to mediate a network interaction to activate exon v5 inclusion via multiple CAUC motifs in both the alternative exon and its upstream polypyrimidine tract. We provide evidence that YB-1 activates splicing by facilitating the recruitment of U2AF65 to weak polypyrimidine tracts through direct protein–protein interactions. Together, these findings suggest a vital role of YB-1 in activating a subset of weak 3′ splice sites in mammalian cells.
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Affiliation(s)
- Wen-Juan Wei
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 200031 Shanghai, China
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30
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Before It Gets Started: Regulating Translation at the 5' UTR. Comp Funct Genomics 2012; 2012:475731. [PMID: 22693426 PMCID: PMC3368165 DOI: 10.1155/2012/475731] [Citation(s) in RCA: 161] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2012] [Revised: 02/22/2012] [Accepted: 03/11/2012] [Indexed: 12/21/2022] Open
Abstract
Translation regulation plays important roles in both normal physiological conditions and diseases states. This regulation requires cis-regulatory elements located mostly in 5' and 3' UTRs and trans-regulatory factors (e.g., RNA binding proteins (RBPs)) which recognize specific RNA features and interact with the translation machinery to modulate its activity. In this paper, we discuss important aspects of 5' UTR-mediated regulation by providing an overview of the characteristics and the function of the main elements present in this region, like uORF (upstream open reading frame), secondary structures, and RBPs binding motifs and different mechanisms of translation regulation and the impact they have on gene expression and human health when deregulated.
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31
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The role of MAPK in drug-induced kidney injury. JOURNAL OF SIGNAL TRANSDUCTION 2012; 2012:463617. [PMID: 22523682 PMCID: PMC3317229 DOI: 10.1155/2012/463617] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2011] [Revised: 11/02/2011] [Accepted: 11/04/2011] [Indexed: 12/23/2022]
Abstract
This paper focuses on the role that mitogen-activated protein kinases (MAPKs) play in drug-induced kidney injury. The MAPKs, of which there are four major classes (ERK, p38, JNK, and ERK5/BMK), are signalling cascades which have been found to be broadly conserved across a wide variety of organisms. MAPKs allow effective transmission of information from the cell surface to the cytosolic or nuclear compartments. Cross talk between the MAPKs themselves and with other signalling pathways allows the cell to modulate responses to a wide variety of external stimuli. The MAPKs have been shown to play key roles in both mediating and ameliorating cellular responses to stress including xenobiotic-induced toxicity. Therefore, this paper will discuss the specific role of the MAPKs in the kidney in response to injury by a variety of xenobiotics and the potential for therapeutic intervention at the level of MAPK signalling across different types of kidney disease.
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32
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Martin J, Jenkins RH, Bennagi R, Krupa A, Phillips AO, Bowen T, Fraser DJ. Post-transcriptional regulation of Transforming Growth Factor Beta-1 by microRNA-744. PLoS One 2011; 6:e25044. [PMID: 21991303 PMCID: PMC3186795 DOI: 10.1371/journal.pone.0025044] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Accepted: 08/23/2011] [Indexed: 11/18/2022] Open
Abstract
Transforming Growth Factor Beta-1 (TGF-β1) is a pleiotropic cytokine that is of central importance in wound healing, inflammation, and in key pathological processes including cancer and progressive tissue fibrosis. TGF-β1 is post-transcriptionally regulated, but the underlying mechanisms remain incompletely defined. Previously, we have extensively delineated post-transcriptional regulation of TGF-β1 synthesis in the kidney, with evidence for relief of translational repression in proximal tubular cells in the context of diabetic nephropathy. In this study, we have investigated the role of the TGF-β1 3'Untranslated Region (3'UTR). Two different 3'UTR lengths have been reported for TGF-β1, of 543 and 137 nucleotides. Absolute quantification showed that, while both UTR lengths were detectable in various human cell types and in a broad range of tissues, the short form predominated in the kidney and elsewhere. Expression of both forms was up-regulated following auto-induction by TGF-β1, but the short:long UTR ratio remained constant. Incorporation of the short UTR into a luciferase reporter vector significantly reduced reporter protein synthesis without major effect on RNA amount, suggesting post-transcriptional inhibition. In silico approaches identified multiple binding sites for miR-744 located in the proximal TGF-β1 3'UTR. A screen in RNA from human tissues showed widespread miR-744 expression. miR-744 transfection inhibited endogenous TGF-β1 synthesis, while direct targeting of TGF-β1 was shown in separate experiments, in which miR-744 decreased TGF-β1 3'UTR reporter activity. This work identifies miR-744-directed post-transcriptional regulation of TGF-β1 which, given the pleiotropic nature of cellular responses to TGF-β1, is potentially widely significant.
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Affiliation(s)
- John Martin
- School of Medicine, Institute of Nephrology, Cardiff University, Cardiff, Wales, United Kingdom
| | - Robert H. Jenkins
- School of Medicine, Institute of Nephrology, Cardiff University, Cardiff, Wales, United Kingdom
| | - Rasha Bennagi
- School of Medicine, Institute of Nephrology, Cardiff University, Cardiff, Wales, United Kingdom
| | - Aleksandra Krupa
- School of Medicine, Institute of Nephrology, Cardiff University, Cardiff, Wales, United Kingdom
| | - Aled O. Phillips
- School of Medicine, Institute of Nephrology, Cardiff University, Cardiff, Wales, United Kingdom
| | - Timothy Bowen
- School of Medicine, Institute of Nephrology, Cardiff University, Cardiff, Wales, United Kingdom
| | - Donald J. Fraser
- School of Medicine, Institute of Nephrology, Cardiff University, Cardiff, Wales, United Kingdom
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Brandt S, Raffetseder U, Djudjaj S, Schreiter A, Kadereit B, Michele M, Pabst M, Zhu C, Mertens PR. Cold shock Y-box protein-1 participates in signaling circuits with auto-regulatory activities. Eur J Cell Biol 2011; 91:464-71. [PMID: 21962637 DOI: 10.1016/j.ejcb.2011.07.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 07/04/2011] [Accepted: 07/06/2011] [Indexed: 02/07/2023] Open
Abstract
The cold shock protein Y-box (YB) binding-1 is an example of a highly regulated protein with pleiotropic functions. Besides activities as a transcription factor in the nucleus or regulator of translation in the cytoplasm, recent findings indicate extracellular effects and secretion via a non-classical secretion pathway. This review summarizes regulatory pathways in which YB-1 participates, all iterating auto-regulatory loops. Schematics are developed that elucidate the cold shock protein activities in (i) fine-tuning its own expression level following platelet-derived growth factor-B-, thrombin- or interferon-γ-dependent signaling, (ii) as a component of the messenger ribonucleoprotein (mRNP) complex for interleukin-2 synthesis in T-cell commitment/activation, (iii) pro-fibrogenic cell phenotypic changes mediated by transforming growth factor-β, and (iv) receptor Notch-3 cleavage and signal transduction. Emphasis is put forward on subcellular protein translocation mechanisms and underlying signaling pathways. These have mostly been analysed in cell culture systems and rarely in experimental models. In sum, YB-1 seems to fulfill a pacemaker role in diverse diseases, both inflammatory/pro-fibrogenic as well as tumorigenic. A clue towards potential intervention strategies may reside in the understanding of the outlined auto-regulatory loops and means to interfere with cycling pathways.
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Affiliation(s)
- Sabine Brandt
- Department of Nephrology, Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Leipziger Strasse 44, 39120 Magdeburg, Germany
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34
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Raffetseder U, Liehn EA, Weber C, Mertens PR. Role of cold shock Y-box protein-1 in inflammation, atherosclerosis and organ transplant rejection. Eur J Cell Biol 2011; 91:567-75. [PMID: 21943779 DOI: 10.1016/j.ejcb.2011.07.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 07/05/2011] [Accepted: 07/08/2011] [Indexed: 12/14/2022] Open
Abstract
Chemokines (chemoattractant cytokines) are crucial regulators of immune cell extravasation from the bloodstream into inflamed tissue. Dysfunctional regulation and perpetuated chemokine gene expression are linked to progressive chronic inflammatory diseases and, in respect to transplanted organs, may trigger graft rejection. RANTES (regulated upon activation, normal T cell expressed and secreted (also known as CCL5)) is a model chemokine with relevance in numerous inflammatory diseases where the innate immune response predominates. Transcription factor Y-box binding protein-1 (YB-1) serves as a trans-regulator of CCL5 gene transcription in vascular smooth muscle cells and leucocytes. This review provides an update on YB-1 as a mediator of inflammatory processes and focuses on the role of YB-1 in CCL5 expression in diseases with monocytic cell infiltrates, albeit acute or chronic. Paradigms of such diseases encompass atherosclerosis and transplant rejection where cold shock protein YB-1 takes a dominant role in transcriptional regulation.
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Affiliation(s)
- Ute Raffetseder
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Pauwelsstrasse 30, 52057 Aachen, Germany.
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35
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Affiliation(s)
- Phillip Kantharidis
- Diabetes Division, Juvenile Diabetes Research Foundation Danielle Alberti Memorial Centre for Diabetes Complications, Baker IDI Heart and Diabetes Institute, Melbourne, Australia.
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36
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Hanssen L, Frye BC, Ostendorf T, Alidousty C, Djudjaj S, Boor P, Rauen T, Floege J, Mertens PR, Raffetseder U. Y-box binding protein-1 mediates profibrotic effects of calcineurin inhibitors in the kidney. THE JOURNAL OF IMMUNOLOGY 2011; 187:298-308. [PMID: 21606250 DOI: 10.4049/jimmunol.1100382] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The immunosuppressive calcineurin inhibitors (CNIs) cyclosporine A (CsA) and tacrolimus are widely used in transplant organ recipients, but in the kidney allograft, they may cause tubulointerstitial as well as mesangial fibrosis, with TGF-β believed to be a central inductor. In this study, we report that the cold-shock protein Y-box binding protein-1 (YB-1) is a TGF-β independent downstream effector in CsA- as well as in tacrolimus- but not in rapamycin-mediated activation of rat mesangial cells (rMCs). Intracellular content of YB-1 is several-fold increased in MCs following CNI treatment in vitro and in vivo in mice. This effect ensues in a time-dependent manner, and the operative concentration range encompasses therapeutically relevant doses for CNIs. The effect of CNI on cellular YB-1 content is abrogated by specific blockade of translation, whereas retarding the transcription remains ineffective. The activation of rMCs by CNIs is accomplished by generation of reactive oxygen species. In contrast to TGF-β-triggered reactive oxygen species generation, hydrogen peroxide especially could be identified as a potent inductor of YB-1 accumulation. In line with this, hindering TGF-β did not influence CNI-induced YB-1 upregulation, whereas ERK/Akt pathways are involved in CNI-mediated YB-1 expression. CsA-induced YB-1 accumulation results in mRNA stabilization and subsequent generation of collagen. Our results provide strong evidence for a CNI-dependent induction of YB-1 in MCs that contributes to renal fibrosis via regulation of its own and collagen translation.
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Affiliation(s)
- Lydia Hanssen
- Department of Nephrology and Clinical Immunology, University Hospital Rheinisch-Westfälische Technische Hochschule-Aachen, Aachen 52057, Germany
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37
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Jenkins RH, Bennagi R, Martin J, Phillips AO, Redman JE, Fraser DJ. A conserved stem loop motif in the 5'untranslated region regulates transforming growth factor-β(1) translation. PLoS One 2010; 5:e12283. [PMID: 20865036 PMCID: PMC2928724 DOI: 10.1371/journal.pone.0012283] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Accepted: 07/16/2010] [Indexed: 01/10/2023] Open
Abstract
Transforming growth factor-β1 (TGF-β1) regulates cellular proliferation, differentiation, migration, and survival. The human TGF-β1 transcript is inherently poorly translated, and translational activation has been documented in relation to several stimuli. In this paper, we have sought to identify in cis regulatory elements within the TGF-β1 5′Untranslated Region (5′UTR). In silico analysis predicted formation of stable secondary structure in a G/C-rich element between nucleotides +77 to +106, and demonstrated that this element is highly conserved across species. Circular dichroism spectroscopy confirmed the presence of secondary structure in this region. The proximal 5′UTR was inhibitory to translation in reporter gene experiments, and mutation of the secondary structure motif increased translational efficiency. Translational regulation of TGF-β1 mRNA is linked to altered binding of YB-1 protein to its 5′UTR. Immunoprecipitation-RT-qPCR demonstrated a high basal association of YB-1 with TGF-β1 mRNA. However, mutation of the secondary structure motif did not prevent interaction of YB-1 with the 5′UTR, suggesting that YB-1 binds to this region due to its G/C-rich composition, rather than a specific, sequence-dependent, binding site. These data identify a highly conserved element within the TGF-β1 5′UTR that forms stable secondary structure, and is responsible for the inherent low translation efficiency of this cytokine.
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Affiliation(s)
- Robert H. Jenkins
- Institute of Nephrology, School of Medicine, Cardiff University, Heath Park, Cardiff, Wales, United Kingdom
| | - Rasha Bennagi
- Institute of Nephrology, School of Medicine, Cardiff University, Heath Park, Cardiff, Wales, United Kingdom
| | - John Martin
- Institute of Nephrology, School of Medicine, Cardiff University, Heath Park, Cardiff, Wales, United Kingdom
| | - Aled O. Phillips
- Institute of Nephrology, School of Medicine, Cardiff University, Heath Park, Cardiff, Wales, United Kingdom
| | - James E. Redman
- School of Chemistry, Cardiff University, Park Place, Cardiff, Wales, United Kingdom
| | - Donald J. Fraser
- Institute of Nephrology, School of Medicine, Cardiff University, Heath Park, Cardiff, Wales, United Kingdom
- * E-mail:
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Lindke AL, Middleton FA, Miller MW. Regulating the availability of transforming growth factor ß1 in B104 neuroblastoma cells. Exp Neurol 2010; 225:123-32. [PMID: 20547156 DOI: 10.1016/j.expneurol.2010.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2010] [Revised: 05/27/2010] [Accepted: 06/07/2010] [Indexed: 10/19/2022]
Abstract
Transforming growth factor (TGF) beta1 is a key player in early brain development, hence, its availability (i.e., synthesis and release) affects neuronogenesis. TGFbeta1 moves proliferating cells out of the cell cycle and promotes their subsequent migration. The present study tested the hypothesis that neural progenitors self-regulate TGFbeta1. B104 neuroblastoma cells which can grow in the absence of serum or growth factors were used in systematic studies of transcription, translation, release, and activation. These studies relied on quantitative enzyme-linked immunosorbent assays and real-time polymerase chain reactions. TGFbeta1 positively upregulated its own intracellular expression and promoted increased release of TGFbeta1 from cells. The induction of TGFbeta1 was independent of a change in transcription, but it depended on cycloheximide-inhibited translation. Signaling mediated by downstream Smad2/3 through the TGFbeta receptors and intracellular protein transport were also required for release of TGFbeta1 from B104 cells. Thus, TGFbeta1 production and release were mediated through a feed-forward mechanism and were pivotally regulated at the level of translation. These activities appear to be key for the role of TGFbeta1 in the proliferation and migration of young neurons.
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Affiliation(s)
- Amanda L Lindke
- Department of Neuroscience and Physiology, State University of New York-Upstate Medical University, Syracuse NY 13210, USA
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