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Massman LJ, Pereckas M, Zwagerman NT, Olivier-Van Stichelen S. O-GlcNAcylation Is Essential for Rapid Pomc Expression and Cell Proliferation in Corticotropic Tumor Cells. Endocrinology 2021 162(12) 34418053
Abstract:
Pituitary adenomas have a staggering 16.7% lifetime prevalence and can be devastating in many patients because of profound endocrine and neurologic dysfunction. To date, no clear genomic or epigenomic markers correlate with their onset or severity. Herein, we investigate the impact of the O-GlcNAc posttranslational modification in their etiology. Found in more than 7000 human proteins to date, O-GlcNAcylation dynamically regulates proteins in critical signaling pathways, and its deregulation is involved in cancer progression and endocrine diseases such as diabetes. In this study, we demonstrated that O-GlcNAc enzymes were upregulated, particularly in aggressive adrenocorticotropin (ACTH)-secreting tumors, suggesting a role for O-GlcNAcylation in pituitary adenoma etiology. In addition to the demonstration that O-GlcNAcylation was essential for their proliferation, we showed that the endocrine function of pituitary adenoma is also dependent on O-GlcNAcylation. In corticotropic tumors, hypersecretion of the proopiomelanocortin (POMC)-derived hormone ACTH leads to Cushing disease, materialized by severe endocrine disruption and increased mortality. We demonstrated that Pomc messenger RNA is stabilized in an O-GlcNAc-dependent manner in response to corticotrophin-releasing hormone (CRH). By affecting Pomc mRNA splicing and stability, O-GlcNAcylation contributes to this new mechanism of fast hormonal response in corticotropes. Thus, this study stresses the essential role of O-GlcNAcylation in ACTH-secreting adenomas' pathophysiology, including cellular proliferation and hypersecretion.
O-GlcNAc proteins:
GPTC8, ITB4, PTPRF, VIR, HMCN2, SETX, RTF1, MYH7B, FSIP2, ARGAL, CO6A5, MMRN2, STOX1, PLXB2, AGRG4, F25A2, LOXH1, HMCN1, TM233, PIEZ1, TOPZ1, CE350, M3K19, RYR2, ACACB, RN213, CF251, ARHG5, BICRA, FOXM1, DLDH, PEX5, WRN, CELR1, PROM1, STK10, MYPC3, DTNB, IKKB, ACTN3, ALDOC, RPB1, LMNB1, MAP1B, HVM57, PAI1, MCM3, MIS, RGRF1, MSRE, CTND1, RB22A, ZO1, QOR, ANXA5, MSH6, EVC, KCNN2, DEPD5, NOE3, TBB4B, ROCK1, GSH1, G3BP1, ATS1, TBB5, NF1, PGBM, IF2P, FA8, GDF3, KCMA1, ZCH18, TANC1, NSUN7, SHRM4, FAT4, IGFN1, HMHA1, FA98A, SCRN3, CH048, K22E, SHLD2, BIG3, SDK1, BAHC1, SLMAP, TBCD9, RIMB3, DYH12, ITAD, CKAP2, IGS10, A3LT2, ITA1, HERC2, XIRP2, TR150, IQEC2, LRC8B, FAT2, S39AC, VP13A, MTUS1, GSTCD, TENS3, ACACA, UTP20, KLRA4, PAPOA, STAR3, EWS, KTN1, GRID1, DDX5, CP131, SEM3B, TLL1, MINT, CCPG1, BTF3, TPP2, RBL1, COBA2, TASOR, PDS5A, CE290, NAL14, A2MG, ZZZ3, FREM2, CPSF6, RPRD2, HEAT6, P4R3A, FIL1L, SNX6, GAPD1, PTN23, TRI37, MON1A, MSL1, SARM1, CENPE, DAPLE, TIAM2, UBE2O, KDM3B, SYNE1, CMYA5, FHOD3, TBB2A, MYCB2, SGO2, MCAF1, STAR9, CAPS1, PHF8, CUL9, CLAP1, ST18, SGSM2, TAF1, M18BP, UBP2L, FLNB, OFD1, PTHB1, PDK1, TMCO3, NRDC, MARF1, TM87B, UNC80, TCAF1, KTU, UBP43, CAPS2, ZN609, DOCK2, RHG24, NAKD2, LENG8, UFL1, CD158, CLASR, SSPO, SLTM, NAV1, FBX4, RFWD3, MICA3, STAU2, NEIL3, CCD14, DDX18, UBP45, AL1L1, CCD80, TF2H3, FYCO1, HNRPU, DYH5, DHX36, AGRV1, FLNC, REST, NDUS1, CREL1, CELR3, DYST, BRWD1, GOGA2, PDIA6, TM1L1, RT4I1, CSTN3, PRP19, TARA, UBP16, NOG2, MYO7B, BCDO2, RRBP1, ZN318, DHX30, MITOS, RBM33, NARF, KLH35, ACSL3, SYRC, C16L2, NBEA, TBB3, XPO4, RBCC1, LRP1B, CAC1F, PRG4, BIR1B, SRCN1, SHRM3, ING1, MACF1, ACL7A, SMK2B, H17B6, RPGR, RHG07, MAST1, ADA11, TIM, PFKAP, IRAG1, DEMA, P2R3D, SETBP, NEK4, PLD1
Species: Mus musculus
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Lee BE, Kim HY, Kim HJ, Jeong H, Kim BG, Lee HE, Lee J, Kim HB, Lee SE, Yang YR, Yi EC, Hanover JA, Myung K, Suh PG, Kwon T, Kim JI. O-GlcNAcylation regulates dopamine neuron function, survival and degeneration in Parkinson disease. Brain : a journal of neurology 2020 143(12) 33300544
Abstract:
The dopamine system in the midbrain is essential for volitional movement, action selection, and reward-related learning. Despite its versatile roles, it contains only a small set of neurons in the brainstem. These dopamine neurons are especially susceptible to Parkinson's disease and prematurely degenerate in the course of disease progression, while the discovery of new therapeutic interventions has been disappointingly unsuccessful. Here, we show that O-GlcNAcylation, an essential post-translational modification in various types of cells, is critical for the physiological function and survival of dopamine neurons. Bidirectional modulation of O-GlcNAcylation importantly regulates dopamine neurons at the molecular, synaptic, cellular, and behavioural levels. Remarkably, genetic and pharmacological upregulation of O-GlcNAcylation mitigates neurodegeneration, synaptic impairments, and motor deficits in an animal model of Parkinson's disease. These findings provide insights into the functional importance of O-GlcNAcylation in the dopamine system, which may be utilized to protect dopamine neurons against Parkinson's disease pathology.
O-GlcNAc proteins:
BIG2, F1712, VIR, AJM1, RPGP1, UBR4, SCN1A, AGRIN, KALRN, STPG3, FXL16, TT23L, PTPRS, GRIK3, SCN2A, DLGP4, OSBL8, PTPRZ, PGBD5, GLSK, GCN1, CE350, PI4KA, RYR2, AGRF2, UBE4A, NRX2A, FRY, SYGP1, OTOGL, AT2B1, ANK3, CA2D1, DPYL2, STXB1, DCTN1, U5S1, GFRA2, GALT1, SEM4D, KIF3C, PLCA, PHB2, NCAM2, GRAK, PURB, IMA3, IMA7, PLD3, FOLH1, FKBP8, STX1A, PSDE, VIAAT, AP1B1, C1QBP, SYT3, HNRH1, SATT, CTND2, SDC4, AP3D1, RGS9, RGS7, CSK22, OX2G, AAKG1, CRYM, PROM1, CNTP1, ENTP2, BCKD, SNG1, NIPS1, NIPS2, SEPT7, AT2A2, DHX9, PI51C, PI42A, ITB5, GPX4, NPTX2, GNAZ, WDR1, S4A4, MTX2, CNTFR, ZFR, CSN3, HCN2, HCN1, CTBP1, BSN, MPP3, NOE1, CBPD, LGMN, COR1A, CYB, COX1, COX2, COX3, HPRT, ATP6, THY1, H3C, LAMC1, NU1M, NU2M, NU4M, NU5M, ATP8, GFAP, MBP, PRIO, ALDOA, KAPCA, AATM, TBA1B, TBA3, KIT, LDHA, G6PI, MDR1B, ENPP1, HS90A, ENPL, KCC4, NFL, NFM, RASN, PGK2, ITB1, PPBT, NUCL, PGK1, ACE, LRC4B, UBB, UBC, EF1A1, IF4A2, GSTM1, 4F2, H10, LAMP1, HS90B, L1CAM, ITA5, KCC2A, ITB2, ITPR1, TCPA, PFKAL, CNTN1, NCAM1, AT1B1, C1QB, RS16, RL7, AT1B2, PSMD3, MAP1B, GLNA, CADH2, INSR, NTRK2, KCNC1, SPTB1, H12, KPCE, LDHB, CN37, DDX3L, KCNA1, KCNA3, AMPE, ASSY, SPTN1, G3P, LAMP2, ENOA, AP2A1, AP2A2, HXK1, GTR1, PTPRA, COF1, GNAO, FAS, LAMA1, NFH, COX41, BIP, HEXB, VIME, MTAP2, MAG, GNA11, GNAQ, MDR1A, ACES, GBRG2, AP1G1, GBRD, EIF3A, CXA1, GRIA1, GRIA2, TY3H, RS2, GBRA2, RL3, BRAF, KCC2B, NP1L1, NCKP1, SNAB, KIF2A, KIF3A, PABP1, GBB4, KCRU, GNA14, KAP3, SC6A1, S6A11, MP2K1, GTR3, LA, RASK, SYWC, KIF1A, HYES, RAB3D, RAB5C, RAB6A, RAB21, NMDZ1, ODPA, RET, FBRL, KCNJ2, CD81, GPM6A, GPM6B, GNL1, DYN1, DYN2, GRIK2, CAP1, ABCA2, PURA, HD, EAA2, H14, H15, H13, ITAV, SYT1, NSF, RB11B, AINX, MYO1B, NEDD4, ALDH2, GRM8, CAZA2, CAPZB, MP2K4, PFKAM, RL6, RL29, RL5, GLRB, DCE1, DCE2, CBR1, GSTM5, ADT1, INPP, CDK5, SAHH, GDIA, VATA, VATE1, GBRB1, RAB7A, ACADL, VA0D1, ADT2, EAA3, KCNJ4, KPYM, RAB2A, PRS6B, PTN5, NCAN, ABCD3, RAB8A, ATPK, ATP5E, UBP5, ATPB, CTBP2, EAA1, WFS1, FUS, NICA, ACTN4, ASM3B, EF2, OPA1, DOCK4, IRPL1, ARPC4, MYPR, PLPP, ACTB, MDGA2, NEUG, RAC3, IF4A1, MEGF8, RAB5B, RAB10, RAB8B, ARP2, ACTZ, CSN2, ARF3, ARL1, CAH10, RAP2B, STX1B, RAB6B, RL27, ARF4, GABT, 1433G, RS7, PP1A, RS8, SMD1, KCAB2, ABI2, RB11A, EF1A2, RS4X, PP2AB, RL18A, ACTA, AP2S1, RL23A, VISL1, H4, GBRA1, VATB2, RAB1A, RAB3C, RAN, RAP1A, RS24, GBB1, GBB2, RS3, RL8, RS27A, RL40, RAC1, RAB3A, HSP7C, CH60, VAMP2, NOE3, GBRB3, VATL, PP1G, 1433Z, GBRB2, KCNA2, KCAB1, CRNL1, DYL1, ACTG, ACTH, KPCG, PP2BA, PP2AA, PHB1, CSK2B, ACTC, RACK1, ACTS, KAPCB, TBA4A, TBA1A, TBB4B, KPCB, H31, IMB1, PLXA1, PLXA2, PLXA3, DCC, ITPR3, NCHL1, HNRH2, ELAV1, USP9X, IDHG1, LYAG, AT8A1, TCPH, TCPB, TCPD, TCPE, TCPZ, TCPG,