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Fan J, Guo F, Mo R, Chen LY, Mo JW, Lu CL, Ren J, Zhong QL, Kuang XJ, Wen YL, Gu TT, Liu JM, Li SJ, Fang YY, Zhao C, Gao TM, Cao X. O-GlcNAc transferase in astrocytes modulates depression-related stress susceptibility through glutamatergic synaptic transmission. The Journal of clinical investigation 2023 133(7) 36757814
Abstract:
Major depressive disorder is a common and devastating psychiatric disease, and the prevalence and burden are substantially increasing worldwide. Multiple studies of depression patients have implicated glucose metabolic dysfunction in the pathophysiology of depression. However, the molecular mechanisms by which glucose and related metabolic pathways modulate depressive-like behaviors are largely uncharacterized. Uridine diphosphate N-acetylglucosamine (UDP-GlcNAc) is a glucose metabolite with pivotal functions as a donor molecule for O-GlcNAcylation. O-GlcNAc transferase (OGT), a key enzyme in protein O-GlcNAcylation, catalyzes protein posttranslational modification by O-GlcNAc and acts as a stress sensor. Here, we show that Ogt mRNA was increased in depression patients and that astroglial OGT expression was specifically upregulated in the medial prefrontal cortex (mPFC) of susceptible mice after chronic social-defeat stress. The selective deletion of astrocytic OGT resulted in antidepressant-like effects, and moreover, astrocytic OGT in the mPFC bidirectionally regulated vulnerability to social stress. Furthermore, OGT modulated glutamatergic synaptic transmission through O-GlcNAcylation of glutamate transporter-1 (GLT-1) in astrocytes. OGT astrocyte-specific knockout preserved the neuronal morphology atrophy and Ca2+ activity deficits caused by chronic stress and resulted in antidepressant effects. Our study reveals that astrocytic OGT in the mPFC regulates depressive-like behaviors through the O-GlcNAcylation of GLT-1 and could be a potential target for antidepressants.
O-GlcNAc proteins:
ZFR, BSN, ABLM3, SHAN2, UNC80, HYCC2, 4ET, MACF1, PCLO, HDAC6
Species: Mus musculus
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Hao Y, Li X, Qin K, Shi Y, He Y, Zhang C, Cheng B, Zhang X, Hu G, Liang S, Tang Q, Chen X. Chemoproteomic and Transcriptomic Analysis Reveals that O-GlcNAc Regulates Mouse Embryonic Stem Cell Fate through the Pluripotency Network. Angewandte Chemie (International ed. in English) 2023 62(17) 36852467
Abstract:
Self-renewal and differentiation of embryonic stem cells (ESCs) are influenced by protein O-linked β-N-acetylglucosamine (O-GlcNAc) modification, but the underlying mechanism remains incompletely understood. Herein, we report the identification of 979 O-GlcNAcylated proteins and 1340 modification sites in mouse ESCs (mESCs) by using a chemoproteomics method. In addition to OCT4 and SOX2, the third core pluripotency transcription factor (PTF) NANOG was found to be modified and functionally regulated by O-GlcNAc. Upon differentiation along the neuronal lineage, the O-GlcNAc stoichiometry at 123 sites of 83 proteins-several of which were PTFs-was found to decline. Transcriptomic profiling reveals 2456 differentially expressed genes responsive to OGT inhibition during differentiation, of which 901 are target genes of core PTFs. By acting on the core PTF network, suppression of O-GlcNAcylation upregulates neuron-related genes, thus contributing to mESC fate determination.
O-GlcNAc proteins:
AMRA1, SETX, SKT, BCORL, AGRIN, MGAP, ARI1A, CHD6, PHRF1, ZCH24, EP300, KIF7, KI67, CE350, ANR11, NUMA1, TPR, MORC3, TAF4B, KMT2B, EMD, AKAP1, TCOF, DCTN1, MNT, NCOA3, ATN1, ECP3, DPOD2, CTND2, PIAS3, AF10, ACK1, GET3, DSG2, ESS2, ATX2, PDLI1, ULK1, BARD1, KDM6A, ZN106, NSD1, ZFR, HIPK1, SETB1, LAMC1, MYCN, GCR, EGR1, RC3H2, ATX1L, DERPC, K2C8, HSPB1, JUND, FGFR1, G3P, ATF2, COF1, HEXB, VIME, PO5F1, CBL, CCNB1, PO2F1, RS2, NFKB1, MAX, PABP1, NEDD1, PTN12, FMR1, ELK1, FOXK1, STAT3, SOX15, PLIN2, CBP, NEDD4, YAP1, RFX1, SOX2, LMNA, ROA1, S1PR2, ARNT, RD23A, PLTP, KMT2A, KLF16, FOXP1, TB182, GMEB2, SENP1, YTHD1, MRTFB, DOCK4, STIM1, TBX3, NCOA1, ERF, SIAE, NACAM, ATF1, WNK1, G3BP2, DNLI3, G3BP1, RLA2, GABPA, S30BP, ZEP1, ENAH, SOX13, CAPR2, APLP2, CLUS, TLE3, GATA4, MITF, CHD8, ZCH18, TANC1, CDK12, SAP25, LIN41, MLXIP, HROB, VRTN, CO039, PDLI7, SMCA4, PRC2C, MILK2, MIDN, YETS2, PBIP1, FUBP2, TFPT, SRBP2, GSE1, F117B, ZN865, WDR62, QRIC1, FOXK2, RREB1, TNR6C, DAB2P, TNR6A, RHG17, PKHA7, COBL1, FCHO2, TET1, ARMX5, GARL3, TET2, CDV3, PHAR4, C2CD3, LIN54, NPA1P, TAB3, TASO2, RESF1, NUFP2, UNKL, COBL, KDM6B, PRSR1, SMG7, RBM27, PHF12, ZDBF2, PUR4, SYNRG, UIMC1, SIN3A, NFAC2, SRC8, SKIL, ELF1, KLF4, NCOR1, KLF3, NCOA2, FOXD3, PAPOA, HCFC1, P3C2A, SIX4, ZFHX3, TOB1, AP180, GLI3, ATRX, MAFK, NPM, M3K7, DAG1, SPTB2, TAF6, TIF1B, SPT6H, SH3G1, ARI3A, TLE1, TLE4, IF4G2, MINT, ZIC3, ZYX, NUP62, PHC1, TFE3, TIF1A, SF01, DAZL, RBL1, KNL1, BCL9L, SBNO1, SLAI1, PKP4, CDK13, SH3R1, JHD2C, HECD1, ARMX2, LAR4B, RHG21, HELZ, SCAF8, UTF1, PKHG2, NIPBL, CCD66, F135A, RPRD2, WWC2, ZN532, KRBA1, TAF9B, RBM26, INT1, BCR, AHDC1, PTN23, PAPD7, KDM3A, KMT2D, CHD4, RN220, NUP98, NFRKB, GGYF2, LCOR, TEX2, PF21A, KDM3B, FNBP4, CNOT1, LARP1, RHG26, NU188, CNDD3, SPAG5, HUWE1, SMAP2, CPEB3, MYCB2, PRC2B, PRR14, MACOI, ATX2L, CKP2L, PRC2A, MCAF1, SI1L2, KANL1, ERBIN, R3HD2, RERE, PUM2, PUM1, NU214, WNK4, TCAM1, SAS6, CAMP3, UBN2, TNC18, AGFG2, WNK3, ZN598, CTIP, SHAN2, NANOG, DDX42, RHG32, VGLU3, LPP, TET3, MYPT2, IF4B, CNO10, MISSL, TB10B, CARF, TGO1, ZN879, SP130, ZC3HE, ZNT6, SUN2, TNR6B, ARI5B, BNC2, KAT6B, KMT2C, CLAP2, CNOT4, SRRM2, TOX4, GEPH, SYP2L, LARP4, KANK2, SALL4, YTHD3, TOIP2, KAT6A, ASXL2, POGZ, TAF5, ZHX2, EPC2, SI1L1, CND2, RBM14, SUCO, CNOT2, DIDO1, SMAG1, LENG8, CDAN1, DPPA4, LRIF1, VCIP1, MB214, TAB1, SCYL2, ASPP2, LS14B, SYEP, F193A, BCOR, OGT1, SUGP1, NAV1, SYNJ1, ADNP2, RPGF2, BICRL, EP400, PHC3, VP37A, EPN2, P66A, PDLI5, ELYS, ZBT20, ANLN, AGFG1, MATR3, CASC3, I2BPL, PO121, ALMS1, SF3A1, GRHL2, ATF7, CACL1, DC1L1, MTSS1, SPART, TDIF2, HBP1, NUP58, RFIP5, BRD8, WIPI1, CDK8, CS047, ATX7, NUP35, LUZP1, RPAP2, NDC1, MAVS, AMOT, CSKI2, P66B, TAF9, IPO4, ZCH14, UBAP2, NCOA5, FUBP1, RBM47, AJUBA, VPS36, DCP1A, EGLN2, YTHD2, SRGP2, GRHL1, BCL7B, P4R3B, PLRG1, WAC, TRPS1, MED1, ACATN, NRBP, RP25L, NONO, TAB2, EPN4, DDAH2, NOG2, ZN281, HGS, NASP, ARIP4, ANR17, ZN318, TRI33, MZT2, ZWINT, ECD, YIF1B, ROA0, DHRS7, TPD54, SSBP3, PSRC1, SARNP, BCL9, SP2, NOP56, SH24A, FIP1, PLIN3, MYPT1, KC1D, TCF20, TOR3A, SALL1, ZN704, RBP2, UBE4B, TBX20, AFF4, RBCC1, 4ET, PALLD, ELF2, TSSC4, NUDT3, HAKAI, ADRM1, NCOA6, FANCA, GIT2, BAG3, TOB2, ZN207, SON, TBL1X, PLEC, MACF1, GOGA5, QKI, GAB1, DMRT1, YLPM1, PCM1, RHG07, TAF7, FOXO1, ADA23, AKA12, UXT, MAN1, NCOR2, AKT3, COR1B, TNIP1, GANP, DEMA, CARM1, RGAP1, ITSN2, ZO2, KLF5, ADNP, ARI3B, BCL3, SE1L1, E41L1, ZN292
Species: Mus musculus
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Alfaro JF, Gong CX, Monroe ME, Aldrich JT, Clauss TR, Purvine SO, Wang Z, Camp DG 2nd, Shabanowitz J, Stanley P, Hart GW, Hunt DF, Yang F, Smith RD. Tandem mass spectrometry identifies many mouse brain O-GlcNAcylated proteins including EGF domain-specific O-GlcNAc transferase targets. Proceedings of the National Academy of Sciences of the United States of America 2012 109(19) 22517741
Abstract:
O-linked N-acetylglucosamine (O-GlcNAc) is a reversible posttranslational modification of Ser and Thr residues on cytosolic and nuclear proteins of higher eukaryotes catalyzed by O-GlcNAc transferase (OGT). O-GlcNAc has recently been found on Notch1 extracellular domain catalyzed by EGF domain-specific OGT. Aberrant O-GlcNAc modification of brain proteins has been linked to Alzheimer's disease (AD). However, understanding specific functions of O-GlcNAcylation in AD has been impeded by the difficulty in characterization of O-GlcNAc sites on proteins. In this study, we modified a chemical/enzymatic photochemical cleavage approach for enriching O-GlcNAcylated peptides in samples containing ∼100 μg of tryptic peptides from mouse cerebrocortical brain tissue. A total of 274 O-GlcNAcylated proteins were identified. Of these, 168 were not previously known to be modified by O-GlcNAc. Overall, 458 O-GlcNAc sites in 195 proteins were identified. Many of the modified residues are either known phosphorylation sites or located proximal to known phosphorylation sites. These findings support the proposed regulatory cross-talk between O-GlcNAcylation and phosphorylation. This study produced the most comprehensive O-GlcNAc proteome of mammalian brain tissue with both protein identification and O-GlcNAc site assignment. Interestingly, we observed O-β-GlcNAc on EGF-like repeats in the extracellular domains of five membrane proteins, expanding the evidence for extracellular O-GlcNAcylation by the EGF domain-specific OGT. We also report a GlcNAc-β-1,3-Fuc-α-1-O-Thr modification on the EGF-like repeat of the versican core protein, a proposed substrate of Fringe β-1,3-N-acetylglucosaminyltransferases.
O-GlcNAc proteins:
ZEP3, CAMP1, FRPD1, SKT, DLGP4, DPYL2, STXB1, MAP2, NUMBL, M3K5, NOTC2, CTND2, CSK22, ACK1, SYUA, ATX2, ZFR, BSN, GCR, EGR1, NFL, NFM, RC3H2, MAMD1, ATX1L, DERPC, NCAM1, MAP1B, G3P, ATF2, MAP4, KCC2B, AIMP1, FOXK1, STAT3, AINX, NEDD4, RP3A, DVL1, GOGA3, FOXP1, TB182, GMEB2, PI5PA, MRTFB, DOCK4, ABI2, KCNJ3, NCOA1, RGRF2, TNIK, WNK1, G3BP2, MPRIP, XRN1, RLA2, S30BP, MARK3, ENAH, PGBM, CDK12, MA6D1, PHAR1, PSD3, NELL1, PRC2C, YETS2, FOXK2, WNK2, LIMC1, TNR6C, AGAP2, ZEP2, AAK1, TNR6A, CAMKV, PKHA7, GRIN1, FCHO2, GARL3, STOX2, UBN1, ABL2, CDV3, PHAR4, TAB3, NUFP2, UNKL, OSBP2, RBM27, CYFP2, TM1L2, ANR40, NACAD, SIN3A, NCOR1, LAMA5, NCOA2, AP180, RAI1, M3K7, TAF6, SRBS1, SH3G1, TLE4, MINT, ZYX, SF01, SYN2, TBR1, SBNO1, CRTC1, GIT1, SLAI1, PKP4, CDK13, RHG23, SH3R1, JHD2C, HECD1, ABLM3, ARMX2, LAR4B, RHG21, FBX41, RPRD2, WWC2, ZN532, BCR, DLGP3, NYAP1, GMIP, NFRKB, MAGI1, CNOT1, NU188, SMAP2, SPAG7, PRC2B, ATX2L, MAP6, MCAF1, PHF24, NAV3, AUXI, RERE, RIMB2, PUM1, NU214, KCMF1, EPN1, AGFG2, C2C2L, CNKR2, ZN598, SHAN2, MAST4, RHG32, MYPT2, TB10B, FRM4A, SP130, DLGP2, ZNT6, ABLM2, CLAP2, CNOT4, PAMR1, CREST, IFFO1, OSBL6, YTHD3, TM266, SI1L1, SH3R3, RBM14, CNOT2, ANK2, DIDO1, SYNPO, VCIP1, TAB1, SCYL2, ASPP2, F193A, OGT1, NAV1, SYNJ1, RPGF2, EP400, P66A, PDLI5, SCAM1, HS12A, AGFG1, I2BPL, PO121, ABLM1, SPART, RFIP5, CS047, SIR2, AMOT, CCG8, ZCH14, WDR13, UBAP2, NCOA5, FRS3, ZFN2B, BASP1, DCP1A, SRGP2, SRGP1, SYUB, CLIP1, UBXN1, GORS2, EPN4, RB6I2, ANR17, TXD12, NECP1, DLGP1, FIP1, F135B, TM263, PLIN3, MYPT1, CRIP2, TSC1, NBEA, RIMS2, ZN704, RBP2, RTN3, 4ET, ELF2, NUDT3, FMN2, NCOA6, SRCN1, ASAP1, RAD1, SON, PLEC, ULK2, ADDA, PCLO, HIPK2, SH2D3, YLPM1, RHG07, TEN1, NCOR2, COR1B, TNIP1, DEMA, E41L3, SYUG, APCL, MECP2, E41L1
Species: Mus musculus
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