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Yu D, Huang CJ, Tucker HO. Established and Evolving Roles of the Multifunctional Non-POU Domain-Containing Octamer-Binding Protein (NonO) and Splicing Factor Proline- and Glutamine-Rich (SFPQ). J Dev Biol 2024; 12:3. [PMID: 38248868 PMCID: PMC10801543 DOI: 10.3390/jdb12010003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/25/2023] [Accepted: 12/28/2023] [Indexed: 01/23/2024] Open
Abstract
It has been more than three decades since the discovery of multifunctional factors, the Non-POU-Domain-Containing Octamer-Binding Protein, NonO, and the Splicing Factor Proline- and Glutamine-Rich, SFPQ. Some of their functions, including their participation in transcriptional and posttranscriptional regulation as well as their contribution to paraspeckle subnuclear body organization, have been well documented. In this review, we focus on several other established roles of NonO and SFPQ, including their participation in the cell cycle, nonhomologous end-joining (NHEJ), homologous recombination (HR), telomere stability, childhood birth defects and cancer. In each of these contexts, the absence or malfunction of either or both NonO and SFPQ leads to either genome instability, tumor development or mental impairment.
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Affiliation(s)
- Danyang Yu
- Department of Biology, New York University in Shanghai, Shanghai 200122, China;
| | - Ching-Jung Huang
- Department of Biology, New York University in Shanghai, Shanghai 200122, China;
| | - Haley O. Tucker
- Molecular Biosciences, Institute for Cellular and Molecular Biology, University of Texas at Austin, 1 University Station A5000, Austin, TX 78712, USA
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Danga AK, Rath PC. Molecular cloning, expression and cellular localization of two long noncoding RNAs (mLINC-RBE and mLINC-RSAS) in the mouse testis. Int J Biol Macromol 2024; 255:128106. [PMID: 37979740 DOI: 10.1016/j.ijbiomac.2023.128106] [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: 07/11/2023] [Revised: 11/01/2023] [Accepted: 11/13/2023] [Indexed: 11/20/2023]
Abstract
Long noncoding RNAs (lncRNAs) are transcribed in complex, overlapping, sense- and antisense orientations from intronic and intergenic regions of mammalian genomes. Transcription of genome in mammalian testis is more widespread compared to other organs. LncRNAs are involved in gene expression, chromatin regulation, mRNA stability and translation of proteins during diverse cellular functions. We report molecular cloning of two novel lncRNAs (mLINC-RBE and mLINC-RSAS) and their expression by RT-PCR as well as cellular localization by RNA in-situ hybridization in the mouse testes. mLINC-RBE is an intergenic lncRNA from chromosome 4, with 16.96 % repeat sequences, expressed as a sense transcript with piRNA sequences and its expression is localized into primary spermatocytes. mLINC-RSAS is an intergenic lncRNA from chromosome 2, with 49.7 % repeat sequences, expressed as both sense- and antisense transcripts with miRNA sequences and its expression is localized into different cell types, such as Sertoli cells, primary spermatocytes and round spermatids. The lncRNAs also contain sequences for some short peptides (micropeptides). This suggests that these two repeat sequence containing, intergenic genomic sense- and antisense transcripts expressed as lncRNAs with piRNAs, miRNAs, and showing cell-type specific, differential expression may regulate important functions in mammalian testes. Such functions may be regulated by RNA structures, RNA processing and RNA-protein complexes.
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Affiliation(s)
- Ajay Kumar Danga
- Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Pramod C Rath
- Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India.
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Wang S, Bu N, Yun Y, Shi X, Wang S, Gao Y. RNA-Seq Analysis of Testes from Mice Exposed to Neodymium Oxide. TOXICS 2023; 11:952. [PMID: 38133353 PMCID: PMC10748220 DOI: 10.3390/toxics11120952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/15/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023]
Abstract
(1) Objective: Rare earth neodymium oxide (Nd2O3) is refined and used extensively around the world, and the occupational and environmental safety of rare piles of the earth has attracted considerable attention. Nd2O3 enters the human body through the respiratory system, reaches various organs through blood circulation, and accumulates to produce toxic effects. At present, little is known about the reproductive toxicity of Nd2O3. Non-coding RNAs participate in a variety of physiological activities and are very important for spermatogenesis. However, it is unknown whether they are involved in Nd2O3-induced reproductive toxicity. Therefore, we conducted a pathological analysis, sperm quality testing, and RNA-seq on the testicular tissue of mice exposed to Nd2O3 to find the key genes and regulatory pathways of male reproductive damage and explore the early biomarkers and mechanisms of reproductive damage caused by Nd2O3. (2) Methods: After exposure of mice to Nd2O3, we carried out a pathological analysis and RNA-seq analysis for miRNAs/lncRNAs/circRNAs/mRNAs on the testicular tissue of mice, and the total RNAs were used to investigate miRNA/lncRNA/circRNA/mRNA expression profiles by strand-specific RNA sequencing at the transcriptome level to help uncover RNA-related mechanisms in Nd2O3-induced toxicity. (3) Results: Nd2O3 damaged testis and sperm morphology, significantly decreased the number of sperm, and deformed the sperm head and tail. RNA-seq analysis showed that the expression level of mRNA/miRNA/circRNA/lncRNA in the testicular tissue of mice exposed to Nd2O3 is abnormal. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis demonstrated that the functional enrichment of differentially expressed genes (DEGs) and their target genes was closely related to the related pathway of spermatogenesis. Furthermore, some miRNAs/lncRNAs/circRNAs that were greatly upregulated or inducibly expressed, implying their potential value as candidate markers for Nd2O3-induced reproductive toxicity, help us to further investigate the mechanisms of key genes, key signaling pathways, and inter-gene regulation for Nd2O3-induced reproductive toxicity. (4) Conclusions: This study provides the first database of a Nd2O3-induced transcriptome. This information is useful for the development of biomarkers of Nd2O3-induced reproductive injury and promotes understanding of the reproductive toxicity mechanism of Nd2O3.
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Affiliation(s)
- Shurui Wang
- Baotou Medical College, Baotou 014042, China; (S.W.); (Y.Y.); (X.S.)
| | - Ning Bu
- Center for Global Health, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China;
| | - Yudan Yun
- Baotou Medical College, Baotou 014042, China; (S.W.); (Y.Y.); (X.S.)
| | - Xuemin Shi
- Baotou Medical College, Baotou 014042, China; (S.W.); (Y.Y.); (X.S.)
| | - Suhua Wang
- Wulanchabu Medical College, Wulanchabu 012001, China
| | - Yanrong Gao
- Baotou Medical College, Baotou 014042, China; (S.W.); (Y.Y.); (X.S.)
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Laurenzi T, Palazzolo L, Taiana E, Saporiti S, Ben Mariem O, Guerrini U, Neri A, Eberini I. Molecular Modelling of NONO and SFPQ Dimerization Process and RNA Recognition Mechanism. Int J Mol Sci 2022; 23:ijms23147626. [PMID: 35886974 PMCID: PMC9324803 DOI: 10.3390/ijms23147626] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/29/2022] [Accepted: 07/08/2022] [Indexed: 12/04/2022] Open
Abstract
NONO and SFPQ are involved in multiple nuclear processes (e.g., pre-mRNA splicing, DNA repair, and transcriptional regulation). These proteins, along with NEAT1, enable paraspeckle formation, thus promoting multiple myeloma cell survival. In this paper, we investigate NONO and SFPQ dimer stability, highlighting the hetero- and homodimer structural differences, and model their interactions with RNA, simulating their binding to a polyG probe mimicking NEAT1guanine-rich regions. We demonstrated in silico that NONO::SFPQ heterodimerization is a more favorable process than homodimer formation. We also show that NONO and SFPQ RRM2 subunits are primarily required for protein–protein interactions with the other DBHS protomer. Simulation of RNA binding to NONO and SFPQ, beside validating RRM1 RNP signature importance, highlighted the role of β2 and β4 strand residues for RNA specific recognition. Moreover, we demonstrated the role of the NOPS region and other protomer’s RRM2 β2/β3 loop in strengthening the interaction with RNA. Our results, having deepened RNA and DBHS dimer interactions, could contribute to the design of small molecules to modulate the activity of these proteins. RNA-mimetics, able to selectively bind to NONO and/or SFPQ RNA-recognition site, could impair paraspeckle formation, thus representing a first step towards the discovery of drugs for multiple myeloma treatment.
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Affiliation(s)
- Tommaso Laurenzi
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy; (T.L.); (E.T.); (A.N.)
| | - Luca Palazzolo
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133 Milan, Italy; (L.P.); (S.S.); (O.B.M.); (U.G.)
| | - Elisa Taiana
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy; (T.L.); (E.T.); (A.N.)
- Hematology, Fondazione Cà Granda IRCCS Policlinico, 20122 Milan, Italy
| | - Simona Saporiti
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133 Milan, Italy; (L.P.); (S.S.); (O.B.M.); (U.G.)
| | - Omar Ben Mariem
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133 Milan, Italy; (L.P.); (S.S.); (O.B.M.); (U.G.)
| | - Uliano Guerrini
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133 Milan, Italy; (L.P.); (S.S.); (O.B.M.); (U.G.)
| | - Antonino Neri
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy; (T.L.); (E.T.); (A.N.)
| | - Ivano Eberini
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133 Milan, Italy; (L.P.); (S.S.); (O.B.M.); (U.G.)
- Data Science Research Center (DSRC), Università degli Studi di Milano, 20122 Milan, Italy
- Correspondence: ; Tel.: +39-02-50318256
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Tommasi S, Kitapci TH, Blumenfeld H, Besaratinia A. Secondhand smoke affects reproductive functions by altering the mouse testis transcriptome, and leads to select intron retention in Pde1a. ENVIRONMENT INTERNATIONAL 2022; 161:107086. [PMID: 35063792 PMCID: PMC8891074 DOI: 10.1016/j.envint.2022.107086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 12/20/2021] [Accepted: 01/07/2022] [Indexed: 05/13/2023]
Abstract
BACKGROUND Human exposure to secondhand smoke (SHS) is known to result in adverse effects in multiple organ systems. However, the impact of SHS on the male reproductive system, particularly on the regulation of genes and molecular pathways that govern sperm production, maturation, and functions remains largely understudied. OBJECTIVE We investigated the effects of SHS on the testis transcriptome in a validated mouse model. METHODS Adult male mice were exposed to SHS (5 h/day, 5 days/week for 4 months) as compared to controls (clean air-exposed). RNA-seq analysis was performed on the testis of SHS-exposed mice and controls. Variant discovery and plink association analyses were also conducted to detect exposure-related transcript variants in SHS-treated mice. RESULTS Exposure of mice to SHS resulted in the aberrant expression of 131 testicular genes. Whilst approximately two thirds of the differentially expressed genes were protein-coding, the remaining (30.5%) comprised noncoding elements, mostly lncRNAs (19.1%). Variant discovery analysis identified a homozygous frameshift variant that is statistically significantly associated with SHS exposure (P = 7.744e-06) and is generated by retention of a short intron within Pde1a, a key regulator of spermatogenesis. Notably, this SHS-associated intron variant harbors an evolutionarily conserved, premature termination codon (PTC) that disrupts the open reading frame of Pde1a, presumably leading to its degradation via nonsense-mediated decay. DISCUSSION SHS alters the expression of genes involved in molecular pathways that are crucial for normal testis development and function. Preferential targeting of lncRNAs in the testis of SHS-exposed mice is especially significant considering their crucial role in the spatial and temporal modulation of spermatogenesis. Equally important is our discovery of a novel homozygous frameshift variant that is exclusively and significantly associated with SHS-exposure and is likely to represent a safeguard mechanism to regulate transcription of Pde1a and preserve normal testis function during harmful exposure to environmental agents.
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Affiliation(s)
- Stella Tommasi
- Department of Population and Public Health Sciences, USC Keck School of Medicine, University of Southern California, M/C 9603, Los Angeles, CA 90033, USA.
| | - Tevfik H Kitapci
- Department of Population and Public Health Sciences, USC Keck School of Medicine, University of Southern California, M/C 9603, Los Angeles, CA 90033, USA
| | - Hannah Blumenfeld
- Department of Population and Public Health Sciences, USC Keck School of Medicine, University of Southern California, M/C 9603, Los Angeles, CA 90033, USA
| | - Ahmad Besaratinia
- Department of Population and Public Health Sciences, USC Keck School of Medicine, University of Southern California, M/C 9603, Los Angeles, CA 90033, USA
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Schell B, Legrand P, Fribourg S. Crystal structure of SFPQ-NONO heterodimer. Biochimie 2022; 198:1-7. [PMID: 35245601 DOI: 10.1016/j.biochi.2022.02.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/18/2022] [Accepted: 02/25/2022] [Indexed: 12/20/2022]
Abstract
The Drosophila behavior/human splicing (DBHS) protein family is composed of the three members SFPQ, NONO and PSPC1. These proteins share a strong sequence and structural homology within the core-structured domains forming obligate homo- and heterodimers. This feature may lead to the simultaneous existence of six different dimeric complexes that sustain their function in many cellular processes such as pre-mRNA splicing, innate immunity, transcriptional regulation. In order to perform a complete structural analysis of all possible DBHS dimers, we have solved the crystal structure of the missing DBHS heterodimer SFPQ-NONO at 3.0 Å resolution. We identify subtle changes in amino acid composition and local secondary structure of the NOPS region orientation that may modulate affinity between complexes. Interestingly this area is found mutated in aggressive skin cancers and adenocarcinomas.
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Affiliation(s)
- Bianca Schell
- INSERM U1212 - CNRS 5320 & Université de Bordeaux, 146 Rue Léo Saignat, 33000, Bordeaux, France; Universität Konstanz, 78457, Konstanz, Germany
| | - Pierre Legrand
- Synchrotron SOLEIL, L'Orme des Merisiers, Gif-sur-Yvette, 91192, France
| | - Sébastien Fribourg
- INSERM U1212 - CNRS 5320 & Université de Bordeaux, 146 Rue Léo Saignat, 33000, Bordeaux, France.
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Li J, Cui P, Sun Q, Du Z, Chen Z, Li Z, Liu C, Cao Y, Yang Z, Liu R, Luo M. PSPC1 regulates CHK1 phosphorylation through phase separation and participates in mouse oocyte maturation. Acta Biochim Biophys Sin (Shanghai) 2021; 53:1527-1537. [PMID: 34490876 DOI: 10.1093/abbs/gmab123] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Indexed: 12/21/2022] Open
Abstract
Liquid-liquid phase separation (LLPS) underlies the formation of membraneless compartments in mammal cells. However, there are few reports that focus on the correlation of mouse oocyte maturation with LLPS. Previous studies have reported that paraspeckle component 1 (PSPC1) is related to the occurrence and development of tumors, but whether PSPC1 functions in mouse oocyte maturation is still unclear. Sequence analysis of PSPC1 protein showed that it contains a prion-like domain (PrLD) that is required for phase separation of proteins. In this study, we found that PSPC1 could undergo phase separation. Moreover, the loss of PrLD domain of PSPC1 could greatly weaken its phase separation ability. The immunofluorescence assays showed that PSPC1 is present in mouse oocytes in the germinal vesicle (GV) stage. Knockdown of PSPC1 significantly impeded the maturation of mouse oocytes in vitro. CHK1 has been reported to play important roles in the GV stage of mouse oocytes. Co-IP experiment revealed that PSPC1 could interact with phosphatase serine/threonine-protein phosphatase 5 (PPP5C), which regulates CHK1 phosphorylation. Western blot analysis revealed that PSPC1 could regulate the phosphorylation of CHK1 through PPP5C; however, PSPC1 without PrLD domain was inactive, suggesting that the lack of phase separation ability led to the abnormal function of PSPC1 in regulating CHK1 phosphorylation. Thus, we conclude that PSPC1 may undergo phase separation to regulate the phosphorylation level of CHK1 via PPP5C and participate in mouse oocyte maturation. Our study provides new insights into the mechanism of mouse oocyte maturation.
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Affiliation(s)
- Jiong Li
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Tissue and Embryology, School of Basic Medical Sciences, Wuhan University, Wuhan 430062, China
| | - Peng Cui
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Tissue and Embryology, School of Basic Medical Sciences, Wuhan University, Wuhan 430062, China
| | - Qi Sun
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Tissue and Embryology, School of Basic Medical Sciences, Wuhan University, Wuhan 430062, China
| | - Ziye Du
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Tissue and Embryology, School of Basic Medical Sciences, Wuhan University, Wuhan 430062, China
| | - Zhen Chen
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Tissue and Embryology, School of Basic Medical Sciences, Wuhan University, Wuhan 430062, China
| | - Zejia Li
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Tissue and Embryology, School of Basic Medical Sciences, Wuhan University, Wuhan 430062, China
| | - Cong Liu
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Tissue and Embryology, School of Basic Medical Sciences, Wuhan University, Wuhan 430062, China
| | - Yuming Cao
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Tissue and Embryology, School of Basic Medical Sciences, Wuhan University, Wuhan 430062, China
| | - Zhe Yang
- College of Life Science, Liaoning University, Shenyang 110036, China
| | - Rong Liu
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Tissue and Embryology, School of Basic Medical Sciences, Wuhan University, Wuhan 430062, China
| | - Mengcheng Luo
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Tissue and Embryology, School of Basic Medical Sciences, Wuhan University, Wuhan 430062, China
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Otsuka K, Matsubara S, Shiraishi A, Takei N, Satoh Y, Terao M, Takada S, Kotani T, Satake H, Kimura AP. A Testis-Specific Long Noncoding RNA, Start, Is a Regulator of Steroidogenesis in Mouse Leydig Cells. Front Endocrinol (Lausanne) 2021; 12:665874. [PMID: 33897623 PMCID: PMC8061315 DOI: 10.3389/fendo.2021.665874] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 03/11/2021] [Indexed: 12/19/2022] Open
Abstract
The testis expresses many long noncoding RNAs (lncRNAs), but their functions and overview of lncRNA variety are not well understood. The mouse Prss/Tessp locus contains six serine protease genes and two lncRNAs that have been suggested to play important roles in spermatogenesis. Here, we found a novel testis-specific lncRNA, Start (Steroidogenesis activating lncRNA in testis), in this locus. Start is 1822 nucleotides in length and was found to be localized mostly in the cytosol of germ cells and Leydig cells, although nuclear localization was also observed. Start-knockout (KO) mice generated by the CRISPR/Cas9 system were fertile and showed no morphological abnormality in adults. However, in adult Start-KO testes, RNA-seq and qRT-PCR analyses revealed an increase in the expression of steroidogenic genes such as Star and Hsd3b1, while ELISA analysis revealed that the testosterone levels in serum and testis were significantly low. Interestingly, at 8 days postpartum, both steroidogenic gene expression and testosterone level were decreased in Start-KO mice. Since overexpression of Start in two Leydig-derived cell lines resulted in elevation of the expression of steroidogenic genes including Star and Hsd3b1, Start is likely to be involved in their upregulation. The increase in expression of steroidogenic genes in adult Start-KO testes might be caused by a secondary effect via the androgen receptor autocrine pathway or the hypothalamus-pituitary-gonadal axis. Additionally, we observed a reduced number of Leydig cells at 8 days postpartum. Collectively, our results strongly suggest that Start is a regulator of steroidogenesis in Leydig cells. The current study provides an insight into the overall picture of the function of testis lncRNAs.
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Affiliation(s)
- Kai Otsuka
- Graduate School of Life Science, Hokkaido University, Sapporo, Japan
| | - Shin Matsubara
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, Kyoto, Japan
| | - Akira Shiraishi
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, Kyoto, Japan
| | - Natsumi Takei
- Graduate School of Life Science, Hokkaido University, Sapporo, Japan
| | - Yui Satoh
- Graduate School of Life Science, Hokkaido University, Sapporo, Japan
| | - Miho Terao
- Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Shuji Takada
- Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, Japan
- Department of NCCHD Child Health and Development, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomoya Kotani
- Graduate School of Life Science, Hokkaido University, Sapporo, Japan
- Department of Biological Sciences, Faculty of Science, Hokkaido University, Sapporo, Japan
| | - Honoo Satake
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, Kyoto, Japan
| | - Atsushi P. Kimura
- Graduate School of Life Science, Hokkaido University, Sapporo, Japan
- Department of Biological Sciences, Faculty of Science, Hokkaido University, Sapporo, Japan
- *Correspondence: Atsushi P. Kimura,
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Song P, Shen X. Proteomic analysis of liver in diet-induced Hyperlipidemic mice under Fructus Rosa roxburghii action. J Proteomics 2020; 230:103982. [PMID: 32927110 DOI: 10.1016/j.jprot.2020.103982] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/28/2020] [Accepted: 09/08/2020] [Indexed: 12/23/2022]
Abstract
Fructus Rosae Roxburghii (FRR) has been considered as edible and medicinal fruit possessing antiatherosclerotic effect, but the mechanism is still unclear. HLP is material basis for AS formation. Under FRR action, TC, TG, LDL, HDL and ASI in serum were regulated to control level. Differentially expressed proteins in liver were analyzed by using TMT labeling and LC-MS/MS for better understanding the effect and molecular mechanism of FRR on diet-induced hyperlipidemic mice. In total, 4460 proteins were quantified, of which 469 proteins showed dramatic changes between each group. According to molecular functions, 25 differentially co-expressed proteins were divided into five categories: substance metabolism, energy transformation and signal transduction, transcription and translation, immune defense. 15 key proteins involved lipids metabolism, which were identified as Cyp7a1, Cyp3a11, Tm7sf2, COAT2, CSAD, RBP3, Lpin1, Dhrs4, Aldh1b1, GK, Acot 4, TSC22D1, PGFS, EHs, GSTM1. This suggested that FRR could maintain metabolic homeostasis by regulating the metabolism of fatty acids, biosynthesis of BAs and steroids, and production of LPOs. 20 oxidative lipids further confirmed their importance regulating lipids metabolism. It's first time potential antiatherosclerotic mechanism of FRR regulating blood lipids was explored from protein level, which is of great significance to explore new drug targets for AS. SIGNIFICANCE: Under the action of FRR juice, the blood lipids in mice were regulated to control level. By TMT proteomic analysis, the effect and molecular mechanism of FRR on diet-induced hyperlipidemic mice were further explored. 25 differentially co-expressed proteins obtained in three diet groups might cooperatively regulate the lipids metabolism and hepatic function of mice, thus maintaining the metabolism homeostasis. By lipidomics analysis, 20 oxidative lipids further confirmed the importance of ω-3 and ω-6 PUFAs in regulating the lipids metabolism. These findings provide an improved understanding for the regulation of FRR on the blood lipids and explores potential metabolic targets for AS prevention.
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Affiliation(s)
- Pingping Song
- The State Key Laboratory of Functions and Applications of Medicinal Plants (The high Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province and The high Educational Key laboratory of Guizhou Province for Natural Medicinal Pharmacology and Druggability), Guizhou Medical University, Guian New District, Guizhou 550000, China; Key Laboratory of Optimal Utilization of Natural Medicine Resources (The Union Key Laboratory of Guiyang City-Guizhou Medical University), School of Pharmaceutical Sciences, Guizhou Medical University, Guian New District, Guizhou 550000, China
| | - Xiangchun Shen
- The State Key Laboratory of Functions and Applications of Medicinal Plants (The high Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province and The high Educational Key laboratory of Guizhou Province for Natural Medicinal Pharmacology and Druggability), Guizhou Medical University, Guian New District, Guizhou 550000, China; Key Laboratory of Optimal Utilization of Natural Medicine Resources (The Union Key Laboratory of Guiyang City-Guizhou Medical University), School of Pharmaceutical Sciences, Guizhou Medical University, Guian New District, Guizhou 550000, China.
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