Abstract
MicroRNA (miRNA) biogenesis is known to be modulated by a variety of RNA-binding proteins (RBPs), but in most cases, individual RBPs appear to influence the processing of a small subset of target miRNAs. Here, we report that the RNA-binding NONO–PSF heterodimer binds a large number of expressed pri-miRNAs in HeLa cells to globally enhance pri-miRNA processing by the Drosha–DGCR8 Microprocessor. NONO and PSF are key components of paraspeckles organized by the long noncoding RNA (lncRNA) NEAT1. We further demonstrate that NEAT1 also has a profound effect on global pri-miRNA processing. Mechanistic dissection reveals that NEAT1 broadly interacts with the NONO–PSF heterodimer as well as many other RBPs and that multiple RNA segments in NEAT1, including a 'pseudo pri-miRNA' near its 3′ end, help attract the Microprocessor. These findings suggest a 'bird nest' model in which an lncRNA orchestrates efficient processing of potentially an entire class of small noncoding RNAs in the nucleus.
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References
Bartel, D.P. MicroRNAs: target recognition and regulatory functions. Cell 136, 215–233 (2009).
Voinnet, O. Origin, biogenesis, and activity of plant microRNAs. Cell 136, 669–687 (2009).
Pasquinelli, A.E. MicroRNAs and their targets: recognition, regulation and an emerging reciprocal relationship. Nat. Rev. Genet. 13, 271–282. http://dx.doi.org/10.1038/nrg3162 (2012).
Rodriguez, A., Griffiths-Jones, S., Ashurst, J.L. & Bradley, A. Identification of mammalian microRNA host genes and transcription units. Genome Res. 14, 10A, 1902–1910 (2004).
Ha, M. & Kim, V.N. Regulation of microRNA biogenesis. Nat. Rev. Mol. Cell Biol. 15, 509–524 (2014).
Liu, H. et al. HP1BP3, a chromatin retention factor for co-transcriptional microRNA processing. Mol. Cell 63, 420–432 (2016).
Pawlicki, J.M. & Steitz, J.A. Primary microRNA transcript retention at sites of transcription leads to enhanced microRNA production. J. Cell Biol. 182, 61–76 (2008).
Kim, Y.K. & Kim, V.N. Processing of intronic microRNAs. EMBO J. 26, 775–783 (2007).
Morlando, M. et al. Primary microRNA transcripts are processed co-transcriptionally. Nat. Struct. Mol. Biol. 15, 902–909 (2008).
Ballarino, M. et al. Coupled RNA processing and transcription of intergenic primary microRNAs. Mol. Cell. Biol. 29, 5632–5638 (2009).
Fox, A.H. et al. Paraspeckles: a novel nuclear domain. Curr. Biol. 12, 13–25 (2002).
Fox, A.H. & Lamond, A.I. Paraspeckles. Cold Spring Harb. Perspect. Biol. 2, a000687 (2010).
Huang, S. & Spector, D.L. Nascent pre-mRNA transcripts are associated with nuclear regions enriched in splicing factors. Genes Dev. 5, 12A, 2288–2302 (1991).
Hall, L.L., Smith, K.P., Byron, M. & Lawrence, J.B. Molecular anatomy of a speckle. Anat. Rec. A Discov. Mol. Cell. Evol. Biol. 288, 664–675 (2006).
Brown, J.M. et al. Association between active genes occurs at nuclear speckles and is modulated by chromatin environment. J. Cell Biol. 182, 1083–1097 (2008).
Yamazaki, T. & Hirose, T. The building process of the functional paraspeckle with long non-coding RNAs. Front. Biosci. (Elite Ed.) 7, 1–41 (2015).
Nakagawa, S. et al. Malat1 is not an essential component of nuclear speckles in mice. RNA 18, 1487–1499 (2012).
Nakagawa, S., Naganuma, T., Shioi, G. & Hirose, T. Paraspeckles are subpopulation-specific nuclear bodies that are not essential in mice. J. Cell Biol. 193, 31–39 (2011).
Hutchinson, J.N. et al. A screen for nuclear transcripts identifies two linked noncoding RNAs associated with SC35 splicing domains. BMC Genomics 8, 39 (2007).
Wilusz, J.E., Freier, S.M. & Spector, D.L. 3′ end processing of a long nuclear-retained noncoding RNA yields a tRNA-like cytoplasmic RNA. Cell 135, 919–932 (2008).
Clemson, C.M. et al. An architectural role for a nuclear noncoding RNA: NEAT1 RNA is essential for the structure of paraspeckles. Mol. Cell 33, 717–726 (2009).
Sasaki, Y.T., Ideue, T., Sano, M., Mituyama, T. & Hirose, T. MENepsilon/beta noncoding RNAs are essential for structural integrity of nuclear paraspeckles. Proc. Natl. Acad. Sci. USA 106, 2525–2530 (2009).
Prasanth, K.V. et al. Regulating gene expression through RNA nuclear retention. Cell 123, 249–263 (2005).
Chen, L.L. & Carmichael, G.G. Altered nuclear retention of mRNAs containing inverted repeats in human embryonic stem cells: functional role of a nuclear noncoding RNA. Mol. Cell 35, 467–478 (2009).
Hirose, T. et al. NEAT1 long noncoding RNA regulates transcription via protein sequestration within subnuclear bodies. Mol. Biol. Cell 25, 169–183 (2014).
Imamura, K. et al. Long noncoding RNA NEAT1-dependent SFPQ relocation from promoter region to paraspeckle mediates IL8 expression upon immune stimuli. Mol. Cell 53, 393–406 (2014).
West, J.A. et al. The long noncoding RNAs NEAT1 and MALAT1 bind active chromatin sites. Mol. Cell 55, 791–802 (2014).
Naganuma, T. et al. Alternative 3′-end processing of long noncoding RNA initiates construction of nuclear paraspeckles. EMBO J. 31, 4020–4034 (2012).
Urcuqui-Inchima, S., Castaño, M.E., Hernandez-Verdun, D., St-Laurent, G. III & Kumar, A. Nuclear Factor 90, a cellular dsRNA binding protein inhibits the HIV Rev-export function. Retrovirology 3, 83 (2006).
Guil, S. & Cáceres, J.F. The multifunctional RNA-binding protein hnRNP A1 is required for processing of miR-18a. Nat. Struct. Mol. Biol. 14, 591–596 (2007).
Chen, L.L. & Carmichael, G.G. Gene regulation by SINES and inosines: biological consequences of A-to-I editing of Alu element inverted repeats. Cell Cycle 7, 3294–3301 (2008).
Kaneko, S., Rozenblatt-Rosen, O., Meyerson, M. & Manley, J.L. The multifunctional protein p54nrb/PSF recruits the exonuclease XRN2 to facilitate pre-mRNA 3′ processing and transcription termination. Genes Dev. 21, 1779–1789 (2007).
Lowery, L.A., Rubin, J. & Sive, H. Whitesnake/sfpq is required for cell survival and neuronal development in the zebrafish. Dev. Dyn. 236, 1347–1357 (2007).
Liang, S. & Lutz, C.S. p54nrb is a component of the snRNP-free U1A (SF-A) complex that promotes pre-mRNA cleavage during polyadenylation. RNA 12, 111–121 (2006).
Sunwoo, H. et al. MEN epsilon/beta nuclear-retained non-coding RNAs are up-regulated upon muscle differentiation and are essential components of paraspeckles. Genome Res. 19, 347–359 (2009).
Tripathi, V. et al. The nuclear-retained noncoding RNA MALAT1 regulates alternative splicing by modulating SR splicing factor phosphorylation. Mol. Cell 39, 925–938 (2010).
Spector, D.L. & Lamond, A.I. Nuclear speckles. Cold Spring Harb. Perspect. Biol. 3, a000646 (2011).
Naganuma, T. & Hirose, T. Paraspeckle formation during the biogenesis of long non-coding RNAs. RNA Biol. 10, 456–461 (2013).
Babiarz, J.E., Ruby, J.G., Wang, Y., Bartel, D.P. & Blelloch, R. Mouse ES cells express endogenous shRNAs, siRNAs, and other Microprocessor-independent, Dicer-dependent small RNAs. Genes Dev. 22, 2773–2785 (2008).
Miyamoto, K., Sakurai, H. & Sugiura, T. Proteomic identification of a PSF/p54nrb heterodimer as RNF43 oncoprotein-interacting proteins. Proteomics 8, 2907–2910 (2008).
Passon, D.M. et al. Structure of the heterodimer of human NONO and paraspeckle protein component 1 and analysis of its role in subnuclear body formation. Proc. Natl. Acad. Sci. USA 109, 4846–4850 (2012).
Patton, J.G., Porro, E.B., Galceran, J., Tempst, P. & Nadal-Ginard, B. Cloning and characterization of PSF, a novel pre-mRNA splicing factor. Genes Dev. 7, 393–406 (1993).
Souquere, S., Beauclair, G., Harper, F., Fox, A. & Pierron, G. Highly ordered spatial organization of the structural long noncoding NEAT1 RNAs within paraspeckle nuclear bodies. Mol. Biol. Cell 21, 4020–4027 (2010).
Macias, S. et al. DGCR8 HITS-CLIP reveals novel functions for the Microprocessor. Nat. Struct. Mol. Biol. 19, 760–766 (2012).
Mao, Y.S., Sunwoo, H., Zhang, B. & Spector, D.L. Direct visualization of the co-transcriptional assembly of a nuclear body by noncoding RNAs. Nat. Cell Biol. 13, 95–101 (2011).
Li, R., Harvey, A.R., Hodgetts, S.I. & Fox, A.H. Functional dissection of NEAT1 using genome editing reveals substantial localization of the NEAT1_1 isoform outside paraspeckles. RNA 23, 872–881 (2017).
Pawlicki, J.M. & Steitz, J.A. Subnuclear compartmentalization of transiently expressed polyadenylated pri-microRNAs: processing at transcription sites or accumulation in SC35 foci. Cell Cycle 8, 345–356 (2009).
Shiohama, A., Sasaki, T., Noda, S., Minoshima, S. & Shimizu, N. Nucleolar localization of DGCR8 and identification of eleven DGCR8-associated proteins. Exp. Cell Res. 313, 4196–4207 (2007).
Zhang, X. et al. MicroRNA directly enhances mitochondrial translation during muscle differentiation. Cell 158, 607–619 (2014).
Zeng, C. et al. Inhibition of long non-coding RNA NEAT1 impairs myeloid differentiation in acute promyelocytic leukemia cells. BMC Cancer 14, 693 (2014).
Choudhry, H. & Mole, D.R. Hypoxic regulation of the noncoding genome and NEAT1. Brief. Funct. Genomics 15, 174–185 (2016).
Choudhry, H. et al. Tumor hypoxia induces nuclear paraspeckle formation through HIF-2α dependent transcriptional activation of NEAT1 leading to cancer cell survival. Oncogene 34, 4482–4490 (2015).
Nakagawa, S. et al. The lncRNA Neat1 is required for corpus luteum formation and the establishment of pregnancy in a subpopulation of mice. Development 141, 4618–4627 (2014).
Adriaens, C. et al. p53 induces formation of NEAT1 lncRNA-containing paraspeckles that modulate replication stress response and chemosensitivity. Nat. Med. 22, 861–868 (2016).
Katz, Y., Wang, E.T., Airoldi, E.M. & Burge, C.B. Analysis and design of RNA sequencing experiments for identifying isoform regulation. Nat. Methods 7, 1009–1015 (2010).
Kozomara, A. & Griffiths-Jones, S. miRBase: integrating microRNA annotation and deep-sequencing data. Nucleic Acids Res. 39, D152–D157 (2011).
Langmead, B., Trapnell, C., Pop, M. & Salzberg, S.L. Ultrafast and memory-efficient alignment of short DNA sequences to the human genome. Genome Biol. 10, R25 (2009).
Friedländer, M.R., Mackowiak, S.D., Li, N., Chen, W. & Rajewsky, N. miRDeep2 accurately identifies known and hundreds of novel microRNA genes in seven animal clades. Nucleic Acids Res. 40, 37–52 (2012).
Lovci, M.T. et al. Rbfox proteins regulate alternative mRNA splicing through evolutionarily conserved RNA bridges. Nat. Struct. Mol. Biol. 20, 1434–1442 (2013).
Shao, C. et al. Mechanisms for U2AF to define 3′ splice sites and regulate alternative splicing in the human genome. Nat. Struct. Mol. Biol. 21, 997–1005 (2014).
Ramírez, F. et al. deepTools2: a next generation web server for deep-sequencing data analysis. Nucleic Acids Res. 44, W1, W160–W165 (2016).
Acknowledgements
This work was supported by grants from the National Key R&D Program of China (2017YFA0504400), the 111 Program of China (B06018), NIH (HG004659, GM049369, GM052872), the National Natural Science Foundation of China (31000573), and the Postdoctoral Science Foundation of China (20090451074).
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Q.-J.W., L.J., C.S., and X.-D.F. designed the experiments. L.J., Q.-J.W., and C.S. performed most experiments. J.Z., B.Y., and Y. Zhou analyzed the data; G.C., H.L., L.-T.G., Y. Zhang, Y.W. and G.W.Y. contributed to sequencing, cell lines, and data interpretation. L.J., C.S., Y. Zhou and X.-D.F. wrote the paper.
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Integrated supplementary information
Supplementary Figure 1 Differential expression of miRNAs from the pri-miR-17-92a locus.
(a) The miR-17-92a expression unit in the third intron of the host miR-17HG transcript. (b,c) Impact of knockdown of Ago1-4 on miRNA expression from the miR-17-92a locus, quantified by RT-qPCR (b) and the Ago knockdown efficiency was verified by Western blotting (c). (d,e) Impact of knockdown of Dicer on miRNA expression from the miR-17-92a locus, quantified by RT-qPCR (d) and the Dicer knockdown efficiency verified by Western blotting (e). Uncropped images of Western blots in c and e are shown in Supplementary Data Set 1. Data in b,d are presented as mean ± SEM (n=3, technical replicates). *P < 0.05; **P < 0.01; ***P < 0.001, determined by two-tailed Student’s t test. Source data are reported in Source Data for Supplementary Figure 1.
Supplementary Figure 2 Evidence for the involvement of paraspeckle-associated proteins and NEAT1 in miRNA biogenesis.
(a) The knockdown efficiencies of PSF (left) and NONO (right) were verified by Western blotting. (b,c) Ablation of paraspeckle key components PSF (b) or NONO (c) down regulated representative miRNAs as indicated. (d) Illustration of miRNA sensor reporters: Individual antisense miRNAs were cloned into the 3’UTR of the Renilla luciferase in psiCHECK2. Reduced miRNA expression would stabilize the Renilla mRNA, thus increasing the relative luciferase activity. (e) Levels of miRNA sensor reporters in response to knockdown of individual paraspeckle-associated proteins or NEAT1. GFP and the RNA binding protein PTB1 served as controls. (f) Knockout of PSPC1 by CRISPR up-regulates representative miRNAs as indicated. (g) The absence of PSPC1 was verified by Western blotting in two independent cell lines. Uncropped images of Western blots in a,g are shown in Supplementary Data Set 1. Data in b,c,e,f are presented as mean ± SEM (n=3, technical replicates for b,c,f; n=4, cell culture for e). *P < 0.05; **P < 0.01; ***P < 0.001; NS, not significant, determined by two-tailed Student’s t test. Source data are reported in Source Data for Supplementary Figure 2.
Supplementary Figure 3 Interrelationship of paraspeckle associated proteins and RNA.
(a) HeLa cells were immunostained with anti-NONO (green) and anti-PSPC1 (red) antibodies. DAPI was used to indicate nucleus. In wild-type cells (WT), NONO and PSPC1 co-localized in paraspeckles. In response to knockdown (KD) of PSF (second raw) or NONO (third raw), the paraspeckle marker PSCP1 no longer showed foci. In contrast, in PSPC1 knockout (KO) cells, NONO continued to show foci. Scale bars, 10 μm. (b) RT-qPCR was performed to confirm NEAT1 knockdown with a stealth siRNA and the impact on miRNA expression. (c-f) Western blot analysis of the Microprocessor Drosha/DGCR8 and a panel of other paraspeckle-associated RBPs upon knockdown of paraspeckle-associated proteins or NEAT1. Data in b are presented as mean ± SEM (n=3, technical replicates). *P < 0.05; **P < 0.01; ***P < 0.001, determined by two-tailed Student’s t test. Source data are reported in Source Data for Supplementary Figure 3. Uncropped images of Western blots are shown in Supplementary Data Set 1.
Supplementary Figure 4 miRNA profiling by small RNA-seq and validation by RT-qPCR.
(a,b) Counts of reference sequences (tRNAs, snoRNAs, spike-in RNA, rRNAs) between duplicated small RNA-seq libraries from siGFP-treated cells (a) or between siPSF and siGFP-treated cells (b). (c,d) Correlation of miRNA counts between duplicated libraries from siGFP-treated (c) or siPSF-treated HeLa cells (d). (e) A panel of miRNAs validated by RT-qPCR. (f) Heatmap representation of validated miRNA expression from the miR-17-92a locus (left) or other pri-miRNAs (right) in response to knockdown of various paraspeckle-associated proteins or NEAT1 as indicated. Data in e are presented as mean ± SEM (n=3, technical replicates). **P < 0.01; ***P < 0.001; NS, not significant, determined by two-tailed Student’s t test. Data source data are reported in Source Data for Supplementary Figure 4.
Supplementary Figure 5 CLIP-seq analysis of PSF/NONO interactions with RNA.
(a) The anti-PSF immunoprecipitated complex trimmed with two different concentrations of MNase (1: 1,000 or 1: 50,000 dilution) and analyzed by autoradiography (bottom panel) and Western blotting (upper panel). (b) Reproducibility between independently constructed CLIP-seq libraries for NONO and PSF. Global comparison was performed with 1 Kb-binned genome. (c) The genomic distribution of NONO and PSF CLIP-seq peaks. (d) Additional examples of NONO and PSF binding on a set of pri-miRNAs in HeLa cell. Uncropped images of Western blots and autoradiography in a are shown in Supplementary Data Set 1.
Supplementary Figure 6 Exogenous DGCR8 interacts with endogenous NONO.
(a) The pri-miRNA-based reporter assay for pri-miR-612 processing relative to pri-miR-17-92a processing in response to knockdown of the Microprocessor. (b) Detection of FLAG-tagged DGCR8 in anti-NONO immunoprecipitant. (c) Detection of NONO in FLAG-tagged DGCR8 immunoprecipitant. * indicates IgG heavy chain. Data are shown in a as mean ± SEM (n=3, cell culture). *P < 0.05; ***P < 0.001; NS, not significant, determined by two-tailed Student’s t test. Data source are reported in Source Data for Supplementary Figure 6. Uncropped images of Western blots in b and c are shown in Supplementary Data Set 1.
Supplementary information
Supplementary Text and Figures
Supplementary Figures 1–6. (PDF 1283 kb)
Supplementary Table 1
DNA and RNA oligos used in this study. (XLSX 16 kb)
Supplementary Table 2
All the antibodies used in this study. (XLSX 10 kb)
Supplementary Table 3
Peptides identified by mass spectrometry. (XLSX 22 kb)
Supplementary Table 4
Deep sequencing statistics. (XLSX 9 kb)
Supplementary Data Set 1
PDF files for all western blotting original gel images. (PDF 8296 kb)
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Jiang, L., Shao, C., Wu, QJ. et al. NEAT1 scaffolds RNA-binding proteins and the Microprocessor to globally enhance pri-miRNA processing. Nat Struct Mol Biol 24, 816–824 (2017). https://doi.org/10.1038/nsmb.3455
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DOI: https://doi.org/10.1038/nsmb.3455
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