1
|
Baños-Jaime B, Corrales-Guerrero L, Pérez-Mejías G, Rejano-Gordillo CM, Velázquez-Campoy A, Martínez-Cruz LA, Martínez-Chantar ML, De la Rosa MA, Díaz-Moreno I. Phosphorylation at the disordered N-end makes HuR accumulate and dimerize in the cytoplasm. Nucleic Acids Res 2024; 52:8552-8565. [PMID: 38966993 PMCID: PMC11317137 DOI: 10.1093/nar/gkae564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 05/30/2024] [Accepted: 07/02/2024] [Indexed: 07/06/2024] Open
Abstract
Human antigen R (HuR) is an RNA binding protein mainly involved in maintaining the stability and controlling the translation of mRNAs, critical for immune response, cell survival, proliferation and apoptosis. Although HuR is a nuclear protein, its mRNA translational-related function occurs at the cytoplasm, where the oligomeric form of HuR is more abundant. However, the regulation of nucleo-cytoplasmic transport of HuR and its connection with protein oligomerization remain unclear. In this work, we describe the phosphorylation of Tyr5 as a new hallmark for HuR activation. Our biophysical, structural and computational assays using phosphorylated and phosphomimetic HuR proteins demonstrate that phosphorylation of Tyr5 at the disordered N-end stretch induces global changes on HuR dynamics and conformation, modifying the solvent accessible surface of the HuR nucleo-cytoplasmic shuttling (HNS) sequence and releasing regions implicated in HuR dimerization. These findings explain the preferential cytoplasmic accumulation of phosphorylated HuR in HeLa cells, aiding to comprehend the mechanisms underlying HuR nucleus-cytoplasm shuttling and its later dimerization, both of which are relevant in HuR-related pathogenesis.
Collapse
Affiliation(s)
- Blanca Baños-Jaime
- Institute for Chemical Research (IIQ), Scientific Research Center "Isla de la Cartuja" (cicCartuja), University of Seville - CSIC, Seville 41092, Spain
| | - Laura Corrales-Guerrero
- Institute for Chemical Research (IIQ), Scientific Research Center "Isla de la Cartuja" (cicCartuja), University of Seville - CSIC, Seville 41092, Spain
| | - Gonzalo Pérez-Mejías
- Institute for Chemical Research (IIQ), Scientific Research Center "Isla de la Cartuja" (cicCartuja), University of Seville - CSIC, Seville 41092, Spain
| | - Claudia M Rejano-Gordillo
- Centre for Biomedical Research Network of Hepatic and Digestive Diseases (CIBERehd), Madrid 28029, Spain
- Liver Disease Lab, BRTA CIC bioGUNE, Derio 48160 Bizkaia, Spain
- Department of Biochemistry and Molecular Biology, Faculty of Sciences, University of Extremadura; University Institute of Biosanitary Research of Extremadura (INUBE), Badajoz 06071, Spain
| | - Adrián Velázquez-Campoy
- Institute for Biocomputation and Physic of Complex Systems (BIFI), Joint Unit GBsC-CSIC-BIFI, University of Zaragoza, Zaragoza 50018, Spain
- Departament of Biochemistry and Molecular and Cellular Biology, University of Zaragoza, Zaragoza 50009, Spain
- Institute for Health Research of Aragón (IIS Aragon), Zaragoza 50009, Spain
| | - Luis Alfonso Martínez-Cruz
- Centre for Biomedical Research Network of Hepatic and Digestive Diseases (CIBERehd), Madrid 28029, Spain
- Liver Disease Lab, BRTA CIC bioGUNE, Derio 48160 Bizkaia, Spain
| | - María Luz Martínez-Chantar
- Centre for Biomedical Research Network of Hepatic and Digestive Diseases (CIBERehd), Madrid 28029, Spain
- Liver Disease Lab, BRTA CIC bioGUNE, Derio 48160 Bizkaia, Spain
| | - Miguel A De la Rosa
- Institute for Chemical Research (IIQ), Scientific Research Center "Isla de la Cartuja" (cicCartuja), University of Seville - CSIC, Seville 41092, Spain
| | - Irene Díaz-Moreno
- Institute for Chemical Research (IIQ), Scientific Research Center "Isla de la Cartuja" (cicCartuja), University of Seville - CSIC, Seville 41092, Spain
| |
Collapse
|
2
|
Wan H, Chen H, Liu J, Yang B, Zhang Y, Bai Y, Chen X, Wang J, Liu T, Zhang Y, Hua Q. PARP1 inhibition prevents oxidative stress in age-related hearing loss via PAR-Ca 2+-AIF axis in cochlear strial marginal cells. Free Radic Biol Med 2024; 220:222-235. [PMID: 38735540 DOI: 10.1016/j.freeradbiomed.2024.05.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/02/2024] [Accepted: 05/09/2024] [Indexed: 05/14/2024]
Abstract
Studies have highlighted oxidative damage in the inner ear as a critical pathological basis for sensorineural hearing loss, especially the presbycusis. Poly(ADP-ribose) polymerase-1 (PARP1) activation responds to oxidative stress-induced DNA damage with pro-repair and pro-death effects resembling two sides of the same coin. PARP1-related cell death, known as parthanatos, whose underlying mechanisms are attractive research hotspots but remain to be clarified. In this study, we observed that aged rats showed stria vascularis degeneration and oxidative damage, and PARP1-dependent cell death was prominent in age-related cochlear disorganization and dysfunction. Based on oxidative stress model of primary cultured stria marginal cells (MCs), we revealed that upregulated PARP1 and PAR (Poly(ADP-ribose)) polymers are responsible for MCs oxidative death with high mitochondrial permeability transition pore (mPTP) opening and mitochondrial membrane potential (MMP) collapse, while inhibition of PARP1 ameliorated the adverse outcomes. Importantly, the PARylation of apoptosis-inducing factor (AIF) is essential for its conformational change and translocation, which subsequently causes DNA break and cell death. Concretely, the interaction of PAR and truncated AIF (tAIF) is the mainstream in the parthanatos pathway. We also found that the effects of AIF cleavage and release were achieved through calpain activity and mPTP opening, both of which could be regulated by PARP1 via mediation of mitochondria Ca2+ concentration. In conclusion, the PAR-Ca2+-tAIF signaling pathway in parthanatos contributes to the oxidative stress damage observed in MCs. Targeting PAR-Ca2+-tAIF might be a potential therapeutic strategy for the early intervention of presbycusis and other oxidative stress-associated sensorineural deafness.
Collapse
Affiliation(s)
- Huanzhi Wan
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan, 430060, Hubei Province, China; The First Clinical School of Wuhan University, Wuhan, 430060, Hubei Province, China
| | - Huidong Chen
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan, 430060, Hubei Province, China; The First Clinical School of Wuhan University, Wuhan, 430060, Hubei Province, China
| | - Jingchun Liu
- The First Clinical School of Wuhan University, Wuhan, 430060, Hubei Province, China
| | - Bingqian Yang
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan, 430060, Hubei Province, China; The First Clinical School of Wuhan University, Wuhan, 430060, Hubei Province, China
| | - Yunlong Zhang
- Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan, 430060, Hubei Province, China; The First Clinical School of Wuhan University, Wuhan, 430060, Hubei Province, China
| | - Yutong Bai
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan, 430060, Hubei Province, China; The First Clinical School of Wuhan University, Wuhan, 430060, Hubei Province, China
| | - Xiaoying Chen
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan, 430060, Hubei Province, China; The First Clinical School of Wuhan University, Wuhan, 430060, Hubei Province, China
| | - Jie Wang
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan, 430060, Hubei Province, China; The First Clinical School of Wuhan University, Wuhan, 430060, Hubei Province, China
| | - Tianyi Liu
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan, 430060, Hubei Province, China.
| | - Yuanyuan Zhang
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan, 430060, Hubei Province, China.
| | - Qingquan Hua
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan, 430060, Hubei Province, China.
| |
Collapse
|
3
|
Fu X, Zhang J, Sun K, Zhang M, Wang S, Yuan M, Liu W, Zeng X, Ba X, Ke Y. Poly (ADP-ribose) polymerase 1 promotes HuR/ELAVL1 cytoplasmic localization and inflammatory gene expression by regulating p38 MAPK activity. Cell Mol Life Sci 2024; 81:253. [PMID: 38852108 PMCID: PMC11335290 DOI: 10.1007/s00018-024-05292-2] [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: 01/24/2024] [Revised: 05/06/2024] [Accepted: 05/24/2024] [Indexed: 06/10/2024]
Abstract
Post-transcriptional regulation of cytokine/chemokine mRNA turnover is critical for immune processes and contributes to the mammalian cellular response to diverse inflammatory stimuli. The ubiquitous RNA-binding protein human antigen R (HuR) is an integral regulator of inflammation-associated mRNA fate. HuR function is regulated by various post-translational modifications that alter its subcellular localization and ability to stabilize target mRNAs. Both poly (ADP-ribose) polymerase 1 (PARP1) and p38 mitogen-activated protein kinases (MAPKs) have been reported to regulate the biological function of HuR, but their specific regulatory and crosstalk mechanisms remain unclear. In this study, we show that PARP1 acts via p38 to synergistically promote cytoplasmic accumulation of HuR and stabilization of inflammation-associated mRNAs in cells under inflammatory conditions. Specifically, p38 binds to auto-poly ADP-ribosylated (PARylated) PARP1 resulting in the covalent PARylation of p38 by PARP1, thereby promoting the retention and activity of p38 in the nucleus. In addition, PARylation of HuR facilitates the phosphorylation of HuR at the serine 197 site mediated by p38, which then increases the translocation of HuR to the cytoplasm, ultimately stabilizing the inflammation-associated mRNA expression at the post-transcriptional level.
Collapse
Affiliation(s)
- Xingyue Fu
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun, 130024, Jilin, China
| | - Jiaqi Zhang
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun, 130024, Jilin, China
| | - Keke Sun
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun, 130024, Jilin, China
| | - Meiqi Zhang
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun, 130024, Jilin, China
| | - Shuyan Wang
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun, 130024, Jilin, China
| | - Meng Yuan
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun, 130024, Jilin, China
| | - Wenguang Liu
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun, 130024, Jilin, China
| | - Xianlu Zeng
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun, 130024, Jilin, China
| | - Xueqing Ba
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun, 130024, Jilin, China
| | - Yueshuang Ke
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun, 130024, Jilin, China.
| |
Collapse
|
4
|
Ashour K, Sali S, Aldoukhi AH, Hall D, Mubaid S, Busque S, Lian XJ, Gagné JP, Khattak S, Di Marco S, Poirier GG, Gallouzi IE. pADP-ribosylation regulates the cytoplasmic localization, cleavage, and pro-apoptotic function of HuR. Life Sci Alliance 2024; 7:e202302316. [PMID: 38538092 PMCID: PMC10972696 DOI: 10.26508/lsa.202302316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/05/2024] Open
Abstract
HuR (ElavL1) is one of the main post-transcriptional regulators that determines cell fate. Although the role of HuR in apoptosis is well established, the post-translational modifications that govern this function remain elusive. In this study, we show that PARP1/2-mediated poly(ADP)-ribosylation (PARylation) is instrumental in the pro-apoptotic function of HuR. During apoptosis, a substantial reduction in HuR PARylation is observed. This results in the cytoplasmic accumulation and the cleavage of HuR, both of which are essential events for apoptosis. These effects are mediated by a pADP-ribose-binding motif within the HuR-HNS region (HuR PAR-binding site). Under normal conditions, the association of the HuR PAR-binding site with pADP-ribose is responsible for the nuclear retention of HuR. Mutations within this motif prevent the binding of HuR to its import factor TRN2, leading to its cytoplasmic accumulation and cleavage. Collectively, our findings underscore the role of PARylation in controlling the pro-apoptotic function of HuR, offering insight into the mechanism by which PARP1/2 enzymes regulate cell fate and adaptation to various assaults.
Collapse
Affiliation(s)
- Kholoud Ashour
- Department of Biochemistry, McGill University, Montreal, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Canada
- Faculty of Applied Medical Sciences, Medical Laboratory Technology, Taibah University, Medina, Saudi Arabia
| | - Sujitha Sali
- https://ror.org/01q3tbs38 KAUST Smart-Health Initiative (KSHI) and Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Jeddah, Saudi Arabia
| | - Ali H Aldoukhi
- https://ror.org/01q3tbs38 KAUST Smart-Health Initiative (KSHI) and Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Jeddah, Saudi Arabia
| | - Derek Hall
- Department of Biochemistry, McGill University, Montreal, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Canada
| | - Souad Mubaid
- Department of Biochemistry, McGill University, Montreal, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Canada
| | - Sandrine Busque
- Department of Biochemistry, McGill University, Montreal, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Canada
| | - Xian Jin Lian
- Department of Biochemistry, McGill University, Montreal, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Canada
| | - Jean-Philippe Gagné
- Centre de recherche du CHU de Québec-Pavillon CHUL, Faculté de Médecine, Université Laval, Québec, Canada
| | - Shahryar Khattak
- https://ror.org/01q3tbs38 KAUST Smart-Health Initiative (KSHI) and Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Jeddah, Saudi Arabia
| | - Sergio Di Marco
- https://ror.org/01q3tbs38 KAUST Smart-Health Initiative (KSHI) and Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Jeddah, Saudi Arabia
- Department of Biochemistry, McGill University, Montreal, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Canada
| | - Guy G Poirier
- Centre de recherche du CHU de Québec-Pavillon CHUL, Faculté de Médecine, Université Laval, Québec, Canada
| | - Imed-Eddine Gallouzi
- https://ror.org/01q3tbs38 KAUST Smart-Health Initiative (KSHI) and Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Jeddah, Saudi Arabia
- Department of Biochemistry, McGill University, Montreal, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Canada
| |
Collapse
|
5
|
Mubaid S, Sanchez BJ, Algehani RA, Skopenkova V, Adjibade P, Hall DT, Busque S, Lian XJ, Ashour K, Tremblay AMK, Carlile G, Gagné JP, Diaz-Gaxiola A, Khattak S, Di Marco S, Thomas DY, Poirier GG, Gallouzi IE. Tankyrase-1 regulates RBP-mediated mRNA turnover to promote muscle fiber formation. Nucleic Acids Res 2024; 52:4002-4020. [PMID: 38321934 DOI: 10.1093/nar/gkae059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/19/2024] [Indexed: 02/08/2024] Open
Abstract
Poly(ADP-ribosylation) (PARylation) is a post-translational modification mediated by a subset of ADP-ribosyl transferases (ARTs). Although PARylation-inhibition based therapies are considered as an avenue to combat debilitating diseases such as cancer and myopathies, the role of this modification in physiological processes such as cell differentiation remains unclear. Here, we show that Tankyrase1 (TNKS1), a PARylating ART, plays a major role in myogenesis, a vital process known to drive muscle fiber formation and regeneration. Although all bona fide PARPs are expressed in muscle cells, experiments using siRNA-mediated knockdown or pharmacological inhibition show that TNKS1 is the enzyme responsible of catalyzing PARylation during myogenesis. Via this activity, TNKS1 controls the turnover of mRNAs encoding myogenic regulatory factors such as nucleophosmin (NPM) and myogenin. TNKS1 mediates these effects by targeting RNA-binding proteins such as Human Antigen R (HuR). HuR harbors a conserved TNKS-binding motif (TBM), the mutation of which not only prevents the association of HuR with TNKS1 and its PARylation, but also precludes HuR from regulating the turnover of NPM and myogenin mRNAs as well as from promoting myogenesis. Therefore, our data uncover a new role for TNKS1 as a key modulator of RBP-mediated post-transcriptional events required for vital processes such as myogenesis.
Collapse
Affiliation(s)
- Souad Mubaid
- Dept. of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC H3G 1Y6, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, 1160 Pine Avenue, Montreal, QC H3A 1A3, Canada
| | - Brenda Janice Sanchez
- KAUST Smart-Health Initiative (KSHI) and Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Jeddah, Saudi Arabia
| | - Rinad A Algehani
- KAUST Smart-Health Initiative (KSHI) and Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Jeddah, Saudi Arabia
| | - Viktoriia Skopenkova
- KAUST Smart-Health Initiative (KSHI) and Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Jeddah, Saudi Arabia
| | - Pauline Adjibade
- Dept. of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC H3G 1Y6, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, 1160 Pine Avenue, Montreal, QC H3A 1A3, Canada
| | - Derek T Hall
- Dept. of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC H3G 1Y6, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, 1160 Pine Avenue, Montreal, QC H3A 1A3, Canada
| | - Sandrine Busque
- Dept. of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC H3G 1Y6, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, 1160 Pine Avenue, Montreal, QC H3A 1A3, Canada
| | - Xian Jin Lian
- Dept. of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC H3G 1Y6, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, 1160 Pine Avenue, Montreal, QC H3A 1A3, Canada
| | - Kholoud Ashour
- Dept. of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC H3G 1Y6, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, 1160 Pine Avenue, Montreal, QC H3A 1A3, Canada
| | - Anne-Marie K Tremblay
- Dept. of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC H3G 1Y6, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, 1160 Pine Avenue, Montreal, QC H3A 1A3, Canada
| | - Graeme Carlile
- Dept. of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC H3G 1Y6, Canada
| | - Jean-Philippe Gagné
- Centre de recherche du CHU de Québec-Pavillon CHUL, Faculté de Médecine, Université Laval, Québec G1V 4G2, Canada
| | - Andrea Diaz-Gaxiola
- KAUST Smart-Health Initiative (KSHI) and Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Jeddah, Saudi Arabia
| | - Shahryar Khattak
- KAUST Smart-Health Initiative (KSHI) and Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Jeddah, Saudi Arabia
| | - Sergio Di Marco
- KAUST Smart-Health Initiative (KSHI) and Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Jeddah, Saudi Arabia
- Dept. of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC H3G 1Y6, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, 1160 Pine Avenue, Montreal, QC H3A 1A3, Canada
| | - David Y Thomas
- Dept. of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC H3G 1Y6, Canada
| | - Guy G Poirier
- Centre de recherche du CHU de Québec-Pavillon CHUL, Faculté de Médecine, Université Laval, Québec G1V 4G2, Canada
| | - Imed-Eddine Gallouzi
- KAUST Smart-Health Initiative (KSHI) and Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Jeddah, Saudi Arabia
- Dept. of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC H3G 1Y6, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, 1160 Pine Avenue, Montreal, QC H3A 1A3, Canada
| |
Collapse
|
6
|
Han W, Gu D, Chen H, Tao X, Chen L. HPF1 regulates tendon stem/progenitor cell senescence and tendon repair via PARP1-mediated poly-ADP ribosylation of HuR. Genes Genomics 2024; 46:27-36. [PMID: 37713069 DOI: 10.1007/s13258-023-01447-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 08/28/2023] [Indexed: 09/16/2023]
Abstract
BACKGROUND Tendon stem/progenitor cells (TSPCs) play a vital role in tendon repair, regeneration and homeostasis. However, the specific mechanism of TSPCs aging is still unclear. OBJECTIVE This study aims to explore the role and molecular mechanism of HPF1 in the aging of TSPCs. METHODS Young and aged TSPCs (Y-TSPCs and A-TSPCs) were acquired from 3 to 4 and 24-26-month-old Sprague-Dawley male rats, TSPCs (Y-TSPCs and A-TSPCs) were subjected to senescence-associated β-galactosidase (SA-β-Gal))staining and telomerase activity detection, p16, p21, Scx, Tnmd, Col1, Col3HPF1 and PAPR1 expression levels were detected by Western blot or Reverse Transcription-quantitative Polymerase Chain Reaction (RT-qPCR), Reciprocal co-immunoprecipitation (co-IP) was used to explore the interaction between HPF1 and PARP1. Ribonucleoprotein immunoprecipitation (RNP-IP) was used to analyze the binding of HuR to the senescence marker gene mRNAs, IP was used to perform HPF1 to the PARylation of HuR, and the half-life of p16 and p21 were detected. Finally, we established an in vivo model, and the tendon tissue was used to perform hematoxylin and eosin (HE) and masson's trichrome staining, as well as the immunohistochemical analysis of Col I and TNMD. RESULTS Compared with Y-TSPCs, A-TSPCs had significantly enhanced cell senescence and significantly reduced tendon differentiation ability, and significantly increased the expression of HPF1 and PARP1. In addition, HPF1 and PARP1 interacted and coordinated the senescence and differentiation of TSPCs, HPF1 could also regulate the expression of p21 and p21, the interaction of p16 or p21 with HuR, and the poly-ADP ribosylation of PARP1 to HuR. HPF1 overexpression and siHuR co-transfection significantly reduced the half-life of p16 and p21, and HPF1 and PARP1 regulated the mRNA levels of p16 and p21 through HuR. Finally, in vivo experiments have shown that HPF1 or PARP1 overexpression could both inhibit the ability of tendon differentiation and promote cell senescence. CONCLUSIONS HPF1 promoted the senescence of TSPCs and inhibits the tendon differentiation of TSPCs through PARP1-mediated poly-ADP ribosylation of HuR.
Collapse
Affiliation(s)
- Weifeng Han
- Department of Orthopaedics, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
| | - Dongqiang Gu
- Senior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, No. 51 Fucheng Road, Beijing, 10048, China
| | - Hongguang Chen
- Senior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, No. 51 Fucheng Road, Beijing, 10048, China
| | - Xu Tao
- Sports Medicine Center, The First Affiliated Hospital of Military Medical University of the Army, Chongqing, 400038, China.
| | - Lei Chen
- Senior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, No. 51 Fucheng Road, Beijing, 10048, China.
| |
Collapse
|
7
|
Dhahri H, Fondufe-Mittendorf YN. Exploring the interplay between PARP1 and circRNA biogenesis and function. WILEY INTERDISCIPLINARY REVIEWS. RNA 2023; 15:e1823. [PMID: 37957925 PMCID: PMC11089078 DOI: 10.1002/wrna.1823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/06/2023] [Accepted: 10/10/2023] [Indexed: 11/15/2023]
Abstract
PARP1 (poly-ADP-ribose polymerase 1) is a multidomain protein with a flexible and self-folding structure that allows it to interact with a wide range of biomolecules, including nucleic acids and target proteins. PARP1 interacts with its target molecules either covalently via PARylation or non-covalently through its PAR moieties induced by auto-PARylation. These diverse interactions allow PARP1 to participate in complex regulatory circuits and cellular functions. Although the most studied PARP1-mediated functions are associated with DNA repair and cellular stress response, subsequent discoveries have revealed additional biological functions. Based on these findings, PARP1 is now recognized as a major modulator of gene expression. Several discoveries show that this multifunctional protein has been intimately connected to several steps of mRNA biogenesis, from transcription initiation to mRNA splicing, polyadenylation, export, and translation of mRNA to proteins. Nevertheless, our understanding of PARP1's involvement in the biogenesis of both coding and noncoding RNA, notably circular RNA (circRNA), remains restricted. In this review, we outline the possible roles of PARP1 in circRNA biogenesis. A full examination of the regulatory roles of PARP1 in nuclear processes with an emphasis on circRNA may reveal new avenues to control dysregulation implicated in the pathogenesis of several diseases such as neurodegenerative disorders and cancers. This article is categorized under: RNA Interactions with Proteins and Other Molecules > Protein-RNA Interactions: Functional Implications Regulatory RNAs/RNAi/Riboswitches > Regulatory RNAs RNA Processing > Splicing Regulation/Alternative Splicing.
Collapse
Affiliation(s)
- Hejer Dhahri
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, Kentucky, USA
- Department of Epigenetics, Van Andel Research Institute, Grand Rapids, Michigan, USA
| | | |
Collapse
|
8
|
Zhou C, Luo Y, Huang Z, Dong F, Lin J, Luo L, Li X, Cai C, Wu W. ELAVL1 promotes LPS-induced endothelial cells injury through modulation of cytokine storm. Immunobiology 2023; 228:152412. [PMID: 37343439 DOI: 10.1016/j.imbio.2023.152412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/16/2023] [Accepted: 06/02/2023] [Indexed: 06/23/2023]
Abstract
Sepsis is a life-threatening systemic organ dysfunction caused by the host's unregulated response to a widespread bacterial infection. Endothelial injury is a major pathophysiologic symptom of sepsis and is considered a critical factor in promoting the progression of disease severity. ELAV like RNA binding protein 1(ELAVL1) is a ubiquitously expressed RNA-binding protein that may play an important role during sepsis. Nonetheless, the molecular mechanisms of ELAVL1 on endothelial cell damage in sepsis have not been well defined. Here, we aimed to confirm the role of ELAVL1 in sepsis-induced endothelial cell damage using lipopolysaccharide (LPS)-induced zebrafish and endothelial cells (ECs) models. We found that zebrafish larvae treated with LPS exhibited systemic endothelial cell damage, mostly manifested as pericardial edema, curved tail, and impaired angiogenesis. LPS treatments also significantly induced the expression levels of inflammatory cytokines (interleukin-6 (IL-6), IL-8, and tumor necrosis factor (TNF)-α) in vivo. In vitro, we observed the increase of ELAVL1 cytoplasmic translocation with LPS treatment. Mechanistically, targeted disruption of the ELAVL1 gene decreased the expression of TNF-α, IL-6, and IL-8 during induction of sepsis and alleviated LPS-induced blood vessel injury in zebrafish. Taken together, our study indicates that ELAVL1 knockdown may alleviate sepsis-induced endothelial cells injury by suppressing cytokine storm. Our research suggests that inhibition of ELAVL1 could reduce the level of inflammatory cytokine production induced by LPS and protect against endothelial cell injury. ELAVL1 might be a potential therapeutic target to block endothelial cells injury associated with sepsis.
Collapse
Affiliation(s)
- Chaoyang Zhou
- Intensive Care Unit, The People's Hospital of Yuhuan, Yuhuan, PR China
| | - Yacan Luo
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, PR China
| | - Zhengwei Huang
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, PR China
| | - Fubo Dong
- Intensive Care Unit, The People's Hospital of Yuhuan, Yuhuan, PR China
| | - Junliang Lin
- Intensive Care Unit, The People's Hospital of Yuhuan, Yuhuan, PR China
| | - Liwen Luo
- Intensive Care Unit, The People's Hospital of Yuhuan, Yuhuan, PR China
| | - Xi Li
- The Affiliated Kangning Hospital of Wenzhou Medical University, Wenzhou, PR China
| | - Chang Cai
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, PR China.
| | - Wenzhi Wu
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, PR China.
| |
Collapse
|
9
|
Kumar R, Mehta D, Nayak D, Sunil S. Characterization of an Aedes ADP-Ribosylation Protein Domain and Role of Post-Translational Modification during Chikungunya Virus Infection. Pathogens 2023; 12:pathogens12050718. [PMID: 37242388 DOI: 10.3390/pathogens12050718] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/27/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023] Open
Abstract
Poly ADP-ribose polymerases (PARPs) catalyze ADP-ribosylation, a subclass of post-translational modification (PTM). Mono-ADP-ribose (MAR) moieties bind to target molecules such as proteins and nucleic acids, and are added as part of the process which also leads to formation of polymer chains of ADP-ribose. ADP-ribosylation is reversible; its removal is carried out by ribosyl hydrolases such as PARG (poly ADP-ribose glycohydrolase), TARG (terminal ADP-ribose protein glycohydrolase), macrodomain, etc. In this study, the catalytic domain of Aedes aegypti tankyrase was expressed in bacteria and purified. The tankyrase PARP catalytic domain was found to be enzymatically active, as demonstrated by an in vitro poly ADP-ribosylation (PARylation) experiment. Using in vitro ADP-ribosylation assay, we further demonstrate that the chikungunya virus (CHIKV) nsp3 (non-structural protein 3) macrodomain inhibits ADP-ribosylation in a time-dependent way. We have also demonstrated that transfection of the CHIKV nsP3 macrodomain increases the CHIKV viral titer in mosquito cells, suggesting that ADP-ribosylation may play a significant role in viral replication.
Collapse
Affiliation(s)
- Ramesh Kumar
- Vector Borne Diseases Group, International Centre for Genetic Engineering and Biotechnology, New Delhi 110067, India
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology, Indore 453252, India
| | - Divya Mehta
- Vector Borne Diseases Group, International Centre for Genetic Engineering and Biotechnology, New Delhi 110067, India
| | - Debasis Nayak
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology, Indore 453252, India
| | - Sujatha Sunil
- Vector Borne Diseases Group, International Centre for Genetic Engineering and Biotechnology, New Delhi 110067, India
| |
Collapse
|
10
|
Pradhan A, Aneja A, Ghosh S, Devvanshi H, C D, Sahu R, Ross C, Kshetrapal P, Maitra A, Das S. Association of exosomal miR-96-5p and miR-146a-5p with the disease severity in dengue virus infection. J Med Virol 2023; 95:e28614. [PMID: 36840403 DOI: 10.1002/jmv.28614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/31/2023] [Accepted: 02/19/2023] [Indexed: 02/26/2023]
Abstract
Exosomes are small extracellular vesicles secreted by cells and have a major role in cell-to-cell signaling. As dengue infection progresses from a mild to a severe form of infection, the exosome's microRNA (miRNA) composition might change, which may contribute to pathogenesis. In this study, a comprehensive analysis of serum exosomal miRNAs was performed and their involvement in dengue virus-induced disease progression in an Indian cohort was assessed. Small RNA-seq showed 50 differentially expressed exosomal miRNAs that were significantly dysregulated during dengue infection. After extensive validation, miR-96-5p was found to be significantly upregulated, whereas miR-146a-5p was significantly downregulated with the progression of disease to severe form. Interestingly, a strong positive correlation was found between the expression levels of miR-96-5p and miR-146a-5p and the platelet levels of the patients. Further, study of miR-146a-5p showed that it regulates the expression of the proteins which are involved in the immune responses. These results suggest that miR-96-5p and miR-146a-5p could be used as diagnostic and prognostic markers for dengue disease progression, in addition to the already available biochemical and pathological parameters.
Collapse
Affiliation(s)
- Aunji Pradhan
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | - Ashish Aneja
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | - Sahana Ghosh
- National Institute of Biomedical Genomics, Kalyani, India
| | - Himadri Devvanshi
- Translational Health Science and Technology Institute, Faridabad, India
| | - Deepika C
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | - Risabh Sahu
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | - Celil Ross
- St. John's Medical College, Bangalore, India
| | | | - Arindam Maitra
- National Institute of Biomedical Genomics, Kalyani, India
| | - Saumitra Das
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
- National Institute of Biomedical Genomics, Kalyani, India
| |
Collapse
|
11
|
Xiao H, Ye X, Vishwakarma V, Preet R, Dixon DA. CRC-derived exosomes containing the RNA binding protein HuR promote lung cell proliferation by stabilizing c-Myc mRNA. Cancer Biol Ther 2022; 23:139-149. [PMID: 35130122 PMCID: PMC8824215 DOI: 10.1080/15384047.2022.2034455] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
HuR overexpression is related to poor survival in patients with colon cancer. HuR overexpression leads to stabilization of tumor-promoting mRNAs by binding to 3′UTR-resident AREs. Exosomes, nanosized lipid bilayer vesicles, mediate many steps in cancer progression. The potential role of exosomal HuR in colon cancer lung metastasis is unclear. HuR expression was assessed immunohistochemically in tumor tissue samples from 20 patients with metastatic or nonmetastatic colon cancer and colon cancer lung metastasis and benign lung disease samples from ten patients. Exosomes were isolated from HCT116 WT and HuR KO colon cancer cells, and uptake of PKH67- and PKH26-labeled exosomes by BEAS-2B cells was evaluated using fluorescence and confocal microscopy. C-Myc and p21protein and mRNA levels were measured by western blotting and RT-qPCR, respectively. In clinical patients, HuR overexpression was significantly enhanced in colon tissues of patients with lung metastasis. HuR expression was higher in lung tissue with metastasis of colonic origin than with benign lung disease. The effect of HuR-containing CRC exosomes compared to HuR-deficient exosomes on wound closure was observed as enhanced proliferation. BEAS-2B cell migration and invasion were enhanced after HuR-containing exosomes treatment. BEAS-2B cells showed similar uptake of PKH67 (HCT116 WT)- and PKH26 (HCT116 HuR KO)-labeled exosomes. Exosomal HuR stabilized c-Myc mRNA and downregulated p21 expression, leading to G1/S transition, in human bronchial epithelial cells. HuR overexpression is associated with lung metastasis in colon cancer patients. Exosomal HuR derived from colon cancer cells alter the biological effect on normal lung epithelial cells.
Collapse
Affiliation(s)
- Hui Xiao
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, China.,Department of Molecular Biosciences, University of Kansas Cancer Center, University of Kansas, Lawrence, Kansas, USA
| | - Xiong Ye
- College of Clinical Medicine, Shanghai University of Medicine & Health Science, Shanghai, China
| | - Vikalp Vishwakarma
- Department of Molecular Biosciences, University of Kansas Cancer Center, University of Kansas, Lawrence, Kansas, USA
| | - Ranjan Preet
- Department of Molecular Biosciences, University of Kansas Cancer Center, University of Kansas, Lawrence, Kansas, USA
| | - Dan A Dixon
- Department of Molecular Biosciences, University of Kansas Cancer Center, University of Kansas, Lawrence, Kansas, USA
| |
Collapse
|
12
|
Hu Antigen R (HuR) Protein Structure, Function and Regulation in Hepatobiliary Tumors. Cancers (Basel) 2022; 14:cancers14112666. [PMID: 35681645 PMCID: PMC9179498 DOI: 10.3390/cancers14112666] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/19/2022] [Accepted: 05/23/2022] [Indexed: 12/10/2022] Open
Abstract
Simple Summary Hepatobiliary tumors are a group of primary malignancies encompassing the liver, the intra- and extra-hepatic biliary tracts, and the gall bladder. Within the liver, hepatocellular carcinoma (HCC) is the most common type of primary cancer, which is, also, representing the third-most recurrent cause of cancer-associated death and the sixth-most prevalent type of tumor worldwide, nowadays. Although less frequent, cholangiocarcinoma (CCA) is, currently, a fatal cancer with limited therapeutic options. Here, we review the regulatory role of Hu antigen R (HuR), a ubiquitous member of the ELAV/Hu family of RNA-binding proteins (RBPs), in the pathogenesis, progression, and treatment of HCC and CCA. Overall, HuR is proposed as a valuable diagnostic and prognostic marker, as well as a therapeutic target in hepatobiliary cancers. Therefore, novel therapeutic approaches that can selectively modulate HuR function appear to be highly attractive for the clinical management of these types of tumors. Abstract Hu antigen R (HuR) is a 36-kDa ubiquitous member of the ELAV/Hu family of RNA-binding proteins (RBPs), which plays an important role as a post-transcriptional regulator of specific RNAs under physiological and pathological conditions, including cancer. Herein, we review HuR protein structure, function, and its regulation, as well as its implications in the pathogenesis, progression, and treatment of hepatobiliary cancers. In particular, we focus on hepatocellular carcinoma (HCC) and cholangiocarcinoma (CCA), tumors where the increased cytoplasmic localization of HuR and activity are proposed, as valuable diagnostic and prognostic markers. An overview of the main regulatory axes involving HuR, which are associated with cell proliferation, invasion, metastasis, apoptosis, and autophagy in HCC, is provided. These include the transcriptional, post-transcriptional, and post-translational modulators of HuR function, in addition to HuR target transcripts. Finally, whereas studies addressing the relevance of targeting HuR in CCA are limited, in the past few years, HuR has emerged as a potential therapeutic target in HCC. In fact, the therapeutic efficacy of some pharmacological inhibitors of HuR has been evaluated, in early experimental models of HCC. We, further, discuss the major findings and future perspectives of therapeutic approaches that specifically block HuR interactions, either with post-translational modifiers or cognate transcripts in hepatobiliary cancers.
Collapse
|
13
|
Wang K, Tong H, Gao Y, Xia L, Jin X, Li X, Zeng X, Boldogh I, Ke Y, Ba X. Cell-Penetrating Peptide TAT-HuR-HNS3 Suppresses Proinflammatory Gene Expression via Competitively Blocking Interaction of HuR with Its Partners. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:2376-2389. [PMID: 35444028 PMCID: PMC9125198 DOI: 10.4049/jimmunol.2200002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/17/2022] [Indexed: 06/14/2023]
Abstract
Proinflammatory cytokines/chemokines are commonly regulated by RNA-binding proteins at posttranscriptional levels. Human Ag R (HuR)/embryonic lethal abnormal vision-like 1 (ELAVL1) is one of the well-characterized RNA-binding proteins that increases the stability of short-lived mRNAs, which encode proinflammatory mediators. HuR employs its nucleocytoplasmic shuttling sequence (HNS) domain, interacting with poly(ADP-ribose) polymerase 1 (PARP1), which accounts for the enhanced poly-ADP-ribosylation and cytoplasmic shuttling of HuR. Also by using its HNS domain, HuR undergoes dimerization/oligomerization, underlying the increased binding of HuR with proinflammatory cytokine/chemokine mRNAs and the disassociation of the miRNA-induced silencing complex from the targets. Therefore, competitively blocking the interactions of HuR with its partners may suppress proinflammatory mediator production. In this study, peptides derived from the sequence of the HuR-HNS domain were synthesized, and their effects on interfering HuR interacting with PARP1 and HuR itself were analyzed. Moreover, cell-penetrating TAT-HuR-HNS3 was delivered into human and mouse cells or administered into mouse lungs with or without exposure of TNF-α or LPS. mRNA levels of proinflammatory mediators as well as neutrophil infiltration were evaluated. We showed that TAT-HuR-HNS3 interrupts HuR-PARP1 interaction and therefore results in a lowered poly-ADP-ribosylation level and decreased cytoplasmic distribution of HuR. TAT-HuR-HNS3 also blocks HuR dimerization and promotes Argonaute 2-based miRNA-induced silencing complex binding to the targets. Moreover, TAT-HuR-HNS3 lowers mRNA stability of proinflammatory mediators in TNF-α-treated epithelial cells and macrophages, and it decreases TNF-α-induced inflammatory responses in lungs of experimental animals. Thus, TAT-HuR-HNS3 is a promising lead peptide for the development of inhibitors to treat inflammation-related diseases.
Collapse
Affiliation(s)
- Ke Wang
- Key Laboratory of Molecular Epigenetics of Ministry of Education, Northeast Normal University, Changchun, Jilin, China
- School of Life Science, Northeast Normal University, Changchun, Jilin, China
| | - Haibin Tong
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, China; and
| | - Yitian Gao
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, China; and
| | - Lan Xia
- Key Laboratory of Molecular Epigenetics of Ministry of Education, Northeast Normal University, Changchun, Jilin, China
- School of Life Science, Northeast Normal University, Changchun, Jilin, China
| | - Xin Jin
- Key Laboratory of Molecular Epigenetics of Ministry of Education, Northeast Normal University, Changchun, Jilin, China
- School of Life Science, Northeast Normal University, Changchun, Jilin, China
| | - Xiaoxue Li
- Key Laboratory of Molecular Epigenetics of Ministry of Education, Northeast Normal University, Changchun, Jilin, China
- School of Life Science, Northeast Normal University, Changchun, Jilin, China
| | - Xianlu Zeng
- Key Laboratory of Molecular Epigenetics of Ministry of Education, Northeast Normal University, Changchun, Jilin, China
- School of Life Science, Northeast Normal University, Changchun, Jilin, China
| | - Istvan Boldogh
- Department of Microbiology and Immunology, University of Texas Medical Branch at Galveston, Galveston, TX
| | - Yueshuang Ke
- Key Laboratory of Molecular Epigenetics of Ministry of Education, Northeast Normal University, Changchun, Jilin, China;
- School of Life Science, Northeast Normal University, Changchun, Jilin, China
| | - Xueqing Ba
- Key Laboratory of Molecular Epigenetics of Ministry of Education, Northeast Normal University, Changchun, Jilin, China;
- School of Life Science, Northeast Normal University, Changchun, Jilin, China
| |
Collapse
|
14
|
Wu X, Xu L. The RNA-binding protein HuR in human cancer: A friend or foe? Adv Drug Deliv Rev 2022; 184:114179. [PMID: 35248670 PMCID: PMC9035123 DOI: 10.1016/j.addr.2022.114179] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 01/26/2022] [Accepted: 02/27/2022] [Indexed: 12/12/2022]
Abstract
The RNA-binding proteins (RBPs) are critical trans factors that associate with specific cis elements present in mRNAs whose stability and translation are subject to regulation. The RBP Hu antigen R (HuR) is overexpressed in a wide variety of human cancers and serves as a prognostic factor of poor clinical outcome. HuR promotes tumorigenesis by interacting with a subset of oncogenic mRNAs implicated in different cancer hallmarks, and resistance to therapy. Reduction of HuR levels in cancer cells leads to tumor regression in mouse xenograft models. These findings prompt a working model whereby cancer cells use HuR, a master switch of multiple oncogenic mRNAs, to drive drug resistance and promote cell survival and metastasis, thus rendering the tumor cells with high cytoplasmic HuR more progressive and resistant to therapy. This review summarizes the roles of HuR in cancer and other diseases, therapeutic potential of HuR inhibition, and the current status of drug discovery on HuR.
Collapse
Affiliation(s)
- Xiaoqing Wu
- Higuchi Biosciences Center, The University of Kansas, Lawrence, KS, USA; The University of Kansas Cancer Center, The University of Kansas Medical Center, Kansas City, KS, USA.
| | - Liang Xu
- The University of Kansas Cancer Center, The University of Kansas Medical Center, Kansas City, KS, USA; Department of Molecular Biosciences, The University of Kansas, Lawrence, KS, USA; Department of Radiation Oncology, The University of Kansas Medical Center, Kansas City, KS, USA.
| |
Collapse
|
15
|
Ye X, Fu Q, Xiao H. The Role of RNA-Binding Protein HuR in Lung Cancer by RNA Sequencing Analysis. Front Genet 2022; 13:813268. [PMID: 35450220 PMCID: PMC9016179 DOI: 10.3389/fgene.2022.813268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 03/09/2022] [Indexed: 12/02/2022] Open
Abstract
Background: The overexpression of human antigen R (HuR) has been proven in various types of cancer and is associated with the poor survival lung cancer patients. HuR overexpression stabilizes the mRNA of tumor-promoting genes by binding with 3′-UTR AU-rich elements. However, the role of HuR in the proliferation of lung cancer is unclear. Methods: HuR expression was assessed using immunohistochemistry of tumor tissue samples from ten patients with lung cancer and ten patients with benign lung disease. Gene, protein, mRNA, and lncRNA changes in A549 HuR knockdown (KD) cells were assessed by single-cell RNA sequencing analysis. Furthermore, cell proliferation, migration, and invasion were determined by Cell Counting Kit-8 (CCK-8) assays and Transwell assays with or without Matrigel. The cell cycle was assessed by propidium iodide staining. The protein level, mRNA level and half-life of PLK1 were detected by western blotting and RT-qPCR. Results: In clinical patients, the expression of HuR was significantly higher in lung cancer patients than in patients with benign lung disease. RNA sequencing analysis of A549 HuR knockdown cells revealed that the main function of HuR was related to ribonucleoprotein complex biogenesis. HuR was found to regulate signaling pathways mainly related to the spliceosome, RNA transport and the cell cycle. HuR KD suppressed the proliferation, migration and invasion of A549 cells, indicating its promotive role in these processes. Conclusion: These results demonstrate that HuR plays an important role in the progression of lung cancer.
Collapse
Affiliation(s)
- Xiong Ye
- School of Clinical Medicine, Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Qiang Fu
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Hui Xiao
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, China
| |
Collapse
|
16
|
Cai H, Zheng D, Yao Y, Yang L, Huang X, Wang L. Roles of Embryonic Lethal Abnormal Vision-Like RNA Binding Proteins in Cancer and Beyond. Front Cell Dev Biol 2022; 10:847761. [PMID: 35465324 PMCID: PMC9019298 DOI: 10.3389/fcell.2022.847761] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 03/04/2022] [Indexed: 12/31/2022] Open
Abstract
Embryonic lethal abnormal vision-like (ELAVL) proteins are RNA binding proteins that were originally discovered as indispensable regulators of the development and functioning of the nervous system. Subsequent studies have shown that ELAVL proteins not only exist in the nervous system, but also have regulatory effects in other tissues. ELAVL proteins have attracted attention as potential therapeutic targets because they stabilize multiple mRNAs by binding within the 3′-untranslated region and thus promote the development of tumors, including hepatocellular carcinoma, pancreatic cancer, ovarian cancer, breast cancer, colorectal carcinoma and lung cancer. Previous studies have focused on these important relationships with downstream mRNAs, but emerging studies suggest that ELAVL proteins also interact with non-coding RNAs. In this review, we will summarize the relationship of the ELAVL protein family with mRNA and non-coding RNA and the roles of ELAVL protein family members in a variety of physiological and pathological processes.
Collapse
Affiliation(s)
| | | | | | - Lehe Yang
- *Correspondence: Lehe Yang, ; Xiaoying Huang, ; Liangxing Wang,
| | - Xiaoying Huang
- *Correspondence: Lehe Yang, ; Xiaoying Huang, ; Liangxing Wang,
| | - Liangxing Wang
- *Correspondence: Lehe Yang, ; Xiaoying Huang, ; Liangxing Wang,
| |
Collapse
|
17
|
Manco G, Lacerra G, Porzio E, Catara G. ADP-Ribosylation Post-Translational Modification: An Overview with a Focus on RNA Biology and New Pharmacological Perspectives. Biomolecules 2022; 12:biom12030443. [PMID: 35327636 PMCID: PMC8946771 DOI: 10.3390/biom12030443] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/02/2022] [Accepted: 03/10/2022] [Indexed: 02/04/2023] Open
Abstract
Cellular functions are regulated through the gene expression program by the transcription of new messenger RNAs (mRNAs), alternative RNA splicing, and protein synthesis. To this end, the post-translational modifications (PTMs) of proteins add another layer of complexity, creating a continuously fine-tuned regulatory network. ADP-ribosylation (ADPr) is an ancient reversible modification of cellular macromolecules, regulating a multitude of key functional processes as diverse as DNA damage repair (DDR), transcriptional regulation, intracellular transport, immune and stress responses, and cell survival. Additionally, due to the emerging role of ADP-ribosylation in pathological processes, ADP-ribosyltransferases (ARTs), the enzymes involved in ADPr, are attracting growing interest as new drug targets. In this review, an overview of human ARTs and their related biological functions is provided, mainly focusing on the regulation of ADP-ribosyltransferase Diphtheria toxin-like enzymes (ARTD)-dependent RNA functions. Finally, in order to unravel novel gene functional relationships, we propose the analysis of an inventory of human gene clusters, including ARTDs, which share conserved sequences at 3′ untranslated regions (UTRs).
Collapse
Affiliation(s)
- Giuseppe Manco
- Institute of Biochemistry and Cell Biology, National Research Council of Italy, Via P. Castellino 111, 80131 Naples, Italy;
- Correspondence: (G.M.); (G.C.)
| | - Giuseppina Lacerra
- Institute of Genetics and Biophysics “Adriano Buzzati-Traverso”, National Research Council of Italy, Via P. Castellino 111, 80131 Naples, Italy;
| | - Elena Porzio
- Institute of Biochemistry and Cell Biology, National Research Council of Italy, Via P. Castellino 111, 80131 Naples, Italy;
| | - Giuliana Catara
- Institute of Biochemistry and Cell Biology, National Research Council of Italy, Via P. Castellino 111, 80131 Naples, Italy;
- Correspondence: (G.M.); (G.C.)
| |
Collapse
|
18
|
Assoni G, La Pietra V, Digilio R, Ciani C, Licata NV, Micaelli M, Facen E, Tomaszewska W, Cerofolini L, Pérez-Ràfols A, Varela Rey M, Fragai M, Woodhoo A, Marinelli L, Arosio D, Bonomo I, Provenzani A, Seneci P. HuR-targeted agents: An insight into medicinal chemistry, biophysical, computational studies and pharmacological effects on cancer models. Adv Drug Deliv Rev 2022; 181:114088. [PMID: 34942276 DOI: 10.1016/j.addr.2021.114088] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 10/07/2021] [Accepted: 12/16/2021] [Indexed: 12/13/2022]
Abstract
The Human antigen R (HuR) protein is an RNA-binding protein, ubiquitously expressed in human tissues, that orchestrates target RNA maturation and processing both in the nucleus and in the cytoplasm. A survey of known modulators of the RNA-HuR interactions is followed by a description of its structure and molecular mechanism of action - RRM domains, interactions with RNA, dimerization, binding modes with naturally occurring and synthetic HuR inhibitors. Then, the review focuses on HuR as a validated molecular target in oncology and briefly describes its role in inflammation. Namely, we show ample evidence for the involvement of HuR in the hallmarks and enabling characteristics of cancer, reporting findings from in vitro and in vivo studies; and we provide abundant experimental proofs of a beneficial role for the inhibition of HuR-mRNA interactions through silencing (CRISPR, siRNA) or pharmacological inhibition (small molecule HuR inhibitors).
Collapse
Affiliation(s)
- Giulia Assoni
- Chemistry Department, University of Milan, Via Golgi 19, I-20133 Milan, Italy; Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy
| | - Valeria La Pietra
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - Rosangela Digilio
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy
| | - Caterina Ciani
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy
| | - Nausicaa Valentina Licata
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy
| | - Mariachiara Micaelli
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy
| | - Elisa Facen
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy
| | - Weronika Tomaszewska
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy
| | - Linda Cerofolini
- Magnetic Resonance Center (CERM), University of Florence and Interuniversity Consortium for Magnetic Resonance of Metalloproteins (CIRMMP), Via L. Sacconi 6, 50019 Sesto Fiorentino (FI), Italy
| | - Anna Pérez-Ràfols
- Giotto Biotech S.R.L., Via Madonna del Piano 6, 50019 Sesto Fiorentino (FI), Italy
| | - Marta Varela Rey
- Gene Regulatory Control in Disease Group, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Health Research Institute of Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - Marco Fragai
- Magnetic Resonance Center (CERM), University of Florence and Interuniversity Consortium for Magnetic Resonance of Metalloproteins (CIRMMP), Via L. Sacconi 6, 50019 Sesto Fiorentino (FI), Italy
| | - Ashwin Woodhoo
- Gene Regulatory Control in Disease Group, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Health Research Institute of Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, Spain; Department of Functional Biology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; Galician Agency of Innovation (GAIN), Xunta de Galicia, Santiago de Compostela, Spain; Center for Cooperative Research in Biosciences (CIC bioGUNE, Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, Building 801A, 48160 Derio, Spain; IKERBASQUE, Basque Foundation for Science, Bilbao 48013, Spain
| | - Luciana Marinelli
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - Daniela Arosio
- Istituto di Scienze e Tecnologie Chimiche "G. Natta" (SCITEC), National Research Council (CNR), Via C. Golgi 19, I-20133 Milan, Italy
| | - Isabelle Bonomo
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy
| | - Alessandro Provenzani
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy.
| | - Pierfausto Seneci
- Chemistry Department, University of Milan, Via Golgi 19, I-20133 Milan, Italy.
| |
Collapse
|
19
|
Velázquez-Cruz A, Baños-Jaime B, Díaz-Quintana A, De la Rosa MA, Díaz-Moreno I. Post-translational Control of RNA-Binding Proteins and Disease-Related Dysregulation. Front Mol Biosci 2021; 8:658852. [PMID: 33987205 PMCID: PMC8111222 DOI: 10.3389/fmolb.2021.658852] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/22/2021] [Indexed: 12/20/2022] Open
Abstract
Cell signaling mechanisms modulate gene expression in response to internal and external stimuli. Cellular adaptation requires a precise and coordinated regulation of the transcription and translation processes. The post-transcriptional control of mRNA metabolism is mediated by the so-called RNA-binding proteins (RBPs), which assemble with specific transcripts forming messenger ribonucleoprotein particles of highly dynamic composition. RBPs constitute a class of trans-acting regulatory proteins with affinity for certain consensus elements present in mRNA molecules. However, these regulators are subjected to post-translational modifications (PTMs) that constantly adjust their activity to maintain cell homeostasis. PTMs can dramatically change the subcellular localization, the binding affinity for RNA and protein partners, and the turnover rate of RBPs. Moreover, the ability of many RBPs to undergo phase transition and/or their recruitment to previously formed membrane-less organelles, such as stress granules, is also regulated by specific PTMs. Interestingly, the dysregulation of PTMs in RBPs has been associated with the pathophysiology of many different diseases. Abnormal PTM patterns can lead to the distortion of the physiological role of RBPs due to mislocalization, loss or gain of function, and/or accelerated or disrupted degradation. This Mini Review offers a broad overview of the post-translational regulation of selected RBPs and the involvement of their dysregulation in neurodegenerative disorders, cancer and other pathologies.
Collapse
Affiliation(s)
- Alejandro Velázquez-Cruz
- Instituto de Investigaciones Químicas, Centro de Investigaciones Científicas Isla de la Cartuja, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Seville, Spain
| | - Blanca Baños-Jaime
- Instituto de Investigaciones Químicas, Centro de Investigaciones Científicas Isla de la Cartuja, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Seville, Spain
| | - Antonio Díaz-Quintana
- Instituto de Investigaciones Químicas, Centro de Investigaciones Científicas Isla de la Cartuja, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Seville, Spain
| | - Miguel A De la Rosa
- Instituto de Investigaciones Químicas, Centro de Investigaciones Científicas Isla de la Cartuja, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Seville, Spain
| | - Irene Díaz-Moreno
- Instituto de Investigaciones Químicas, Centro de Investigaciones Científicas Isla de la Cartuja, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Seville, Spain
| |
Collapse
|
20
|
Rosado MM, Pioli C. ADP-ribosylation in evasion, promotion and exacerbation of immune responses. Immunology 2021; 164:15-30. [PMID: 33783820 DOI: 10.1111/imm.13332] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/15/2021] [Accepted: 03/23/2021] [Indexed: 12/13/2022] Open
Abstract
ADP-ribosylation is the addition of one or more (up to some hundreds) ADP-ribose moieties to acceptor proteins. This evolutionary ancient post-translational modification (PTM) is involved in fundamental processes including DNA repair, inflammation, cell death, differentiation and proliferation, among others. ADP-ribosylation is catalysed by two major families of enzymes: the cholera toxin-like ADP-ribosyltransferases (ARTCs) and the diphtheria toxin-like ADP-ribosyltransferases (ARTDs, also known as PARPs). ARTCs sense and use extracellular NAD, which may represent a danger signal, whereas ARTDs are present in the cell nucleus and/or cytoplasm. ARTCs mono-ADP-ribosylate their substrates, whereas ARTDs, according to the specific family member, are able to mono- or poly-ADP-ribosylate target proteins or are devoid of enzymatic activity. Both mono- and poly-ADP-ribosylation are dynamic processes, as specific hydrolases are able to remove single or polymeric ADP moieties. This dynamic equilibrium between addition and degradation provides plasticity for fast adaptation, a feature being particularly relevant to immune cell functions. ADP-ribosylation regulates differentiation and functions of myeloid, T and B cells. It also regulates the expression of cytokines and chemokines, production of antibodies, isotype switch and the expression of several immune mediators. Alterations in these processes involve ADP-ribosylation in virtually any acute and chronic inflammatory/immune-mediated disease. Besides, pathogens developed mechanisms to contrast the action of ADP-ribosylating enzymes by using their own hydrolases and/or to exploit this PTM to sustain their virulence. In the present review, we summarize and discuss recent findings on the role of ADP-ribosylation in immunobiology, immune evasion/subversion by pathogens and immune-mediated diseases.
Collapse
Affiliation(s)
| | - Claudio Pioli
- Division of Health Protection Technologies, ENEA, Rome, Italy
| |
Collapse
|