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Virological and Cellular Roles of the Transcriptional Coactivator LEDGF/p75

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Part of the book series: Current Topics in Microbiology and Immunology ((CT MICROBIOLOGY,volume 339))

Abstract

The chromatin-associated cellular proteins LEDGF/p75 and LEDGF/p52 have been implicated in transcriptional regulation, cell survival and autoimmunity. LEDGF/p75 also appears to act as a chromatin-docking factor or receptor for HIV-1 and other lentiviruses and to play a role in leukemogenesis. For both the viral and cellular roles of this protein, a key feature is its ability to act as a molecular adaptor and tether proteins to the chromatin fiber. This chapter reviews the emerging roles of LEDGF/p75 and LEDGF/p52 in diverse cellular processes and disease states.

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References

  • Ahuja HG, Hong J, Aplan PD, Tcheurekdjian L, Forman SJ, Slovak ML (2000) t(9;11)(p22;p15) in acute myeloid leukemia results in a fusion between NUP98 and the gene encoding transcriptional coactivators p52 and p75-lens epithelium-derived growth factor (LEDGF). Cancer Res 60(22):6227–6229

    PubMed  CAS  Google Scholar 

  • Ahuja P, Caffe AR, Holmqvist I, Soderpalm AK, Singh DP, Shinohara T, van Veen T (2001) Lens epithelium-derived growth factor (LEDGF) delays photoreceptor degeneration in explants of rd/rd mouse retina. Neuroreport 12(13):2951–2955

    Article  PubMed  CAS  Google Scholar 

  • Argiropoulos B, Humphries RK (2007) Hox genes in hematopoiesis and leukemogenesis. Oncogene 26(47):6766–6776

    Article  PubMed  CAS  Google Scholar 

  • Bao KK, Wang H, Miller JK, Erie DA, Skalka AM, Wong I (2003) Functional oligomeric state of avian sarcoma virus integrase. J Biol Chem 278(2):1323–1327

    Article  PubMed  CAS  Google Scholar 

  • Bartholomeeusen K, De Rijck J, Busschots K, Desender L, Gijsbers R, Emiliani S, Benarous R, Debyser Z, Christ F (2007) Differential Interaction of HIV-1 Integrase and JPO2 with the C Terminus of LEDGF/p75. J Mol Biol 372(2):407–421

    Article  PubMed  CAS  Google Scholar 

  • Bartholomeeusen K, Gijsbers R, Christ F, Hendrix J, Rain JC, Emiliani S, Benarous R, Debyser Z, De Rijck J (2009) Lens epithelium derived growth factor/p75 interacts with the transposase derived DDE domain of pogZ. J Biol Chem 284(17):11467–11477

    Article  PubMed  CAS  Google Scholar 

  • Brown PO, Bowerman B, Varmus HE, Bishop JM (1989) Retroviral integration: structure of the initial covalent product and its precursor, and a role for the viral IN protein. Proc Natl Acad Sci U S A 86(8):2525–2529

    Article  PubMed  CAS  Google Scholar 

  • Brown-Bryan TA, Leoh LS, Ganapathy V, Pacheco FJ, Mediavilla-Varela M, Filippova M, Linkhart TA, Gijsbers R, Debyser Z, Casiano CA (2008) Alternative splicing and caspase-mediated cleavage generate antagonistic variants of the stress oncoprotein LEDGF/p75. Mol Cancer Res 6(8):1293–1307

    Article  PubMed  CAS  Google Scholar 

  • Busschots K, Vercammen J, Emiliani S, Benarous R, Engelborghs Y, Christ F, Debyser Z (2005) The interaction of LEDGF/p75 with integrase is lentivirus-specific and promotes DNA binding. J Biol Chem 280(18):17841–17847

    Article  PubMed  CAS  Google Scholar 

  • Busschots K, Voet A, De Maeyer M, Rain JC, Emiliani S, Benarous R, Desender L, Debyser Z, Christ F (2007) Identification of the LEDGF/p75 binding site in HIV-1 integrase. J Mol Biol 365(5):1480–1492

    Article  PubMed  CAS  Google Scholar 

  • Busschots K, De Rijck J, Christ F, Debyser Z (2009) In search of small molecules blocking interactions between HIV proteins and intracellular cofactors. Mol Biosyst 5(1):21–31

    Article  PubMed  CAS  Google Scholar 

  • Cherepanov P (2007) LEDGF/p75 interacts with divergent lentiviral integrases and modulates their enzymatic activity in vitro. Nucleic Acids Res 35(1):113–124

    Article  PubMed  CAS  Google Scholar 

  • Cherepanov P, Maertens G, Proost P, Devreese B, Van Beeumen J, Engelborghs Y, De Clercq E, Debyser Z (2003) HIV-1 integrase forms stable tetramers and associates with LEDGF/p75 protein in human cells. J Biol Chem 278(1):372–381

    Article  PubMed  CAS  Google Scholar 

  • Cherepanov P, Devroe E, Silver PA, Engelman A (2004) Identification of an evolutionarily conserved domain in human lens epithelium-derived growth factor/transcriptional co-activator p75 (LEDGF/p75) that binds HIV-1 integrase. J Biol Chem 279(47):48883–48892

    Article  PubMed  CAS  Google Scholar 

  • Cherepanov P, Ambrosio AL, Rahman S, Ellenberger T, Engelman A (2005a) Structural basis for the recognition between HIV-1 integrase and transcriptional coactivator p75. Proc Natl Acad Sci U S A 102(48):17308–17313

    Article  PubMed  CAS  Google Scholar 

  • Cherepanov P, Sun ZY, Rahman S, Maertens G, Wagner G, Engelman A (2005b) Solution structure of the HIV-1 integrase-binding domain in LEDGF/p75. Nat Struct Mol Biol 12(6):526–532

    Article  PubMed  CAS  Google Scholar 

  • Chiu TK, Davies DR (2007) Structure and function of HIV-1 integrase: an update. Frontiers in Medicinal Chemistry 3(7):1–20

    Google Scholar 

  • Ciuffi A, Bushman FD (2006) Retroviral DNA integration: HIV and the role of LEDGF/p75. Trends Genet 22(7):388–395

    Article  PubMed  CAS  Google Scholar 

  • Ciuffi A, Llano M, Poeschla E, Hoffmann C, Leipzig J, Shinn P, Ecker JR, Bushman F (2005) A role for LEDGF/p75 in targeting HIV DNA integration. Nature Medicine 11:1287–1289

    Article  PubMed  CAS  Google Scholar 

  • Daugaard M, Kirkegaard-Sorensen T, Ostenfeld MS, Aaboe M, Hoyer-Hansen M, Orntoft TF, Rohde M, Jaattela M (2007) Lens epithelium-derived growth factor is an Hsp70–2 regulated guardian of lysosomal stability in human cancer. Cancer Res 67(6):2559–2567

    Article  PubMed  CAS  Google Scholar 

  • De Rijck J, Vandekerckhove L, Gijsbers R, Hombrouck A, Hendrix J, Vercammen J, Engelborghs Y, Christ F, Debyser Z (2006) Overexpression of the lens epithelium-derived growth factor/p75 integrase binding domain inhibits human immunodeficiency virus replication. J Virol 80(23):11498–11509

    Article  PubMed  Google Scholar 

  • Dietz F, Franken S, Yoshida K, Nakamura H, Kappler J, Gieselmann V (2002) The family of hepatoma-derived growth factor proteins: characterization of a new member HRP-4 and classification of its subfamilies. Biochem J 366(Pt 2):491–500

    Article  PubMed  CAS  Google Scholar 

  • Du L, Zhao Y, Chen J, Yang L, Zheng Y, Tang Y, Shen X, Jiang H (2008) D77, one benzoic acid derivative, functions as a novel anti-HIV-1 inhibitor targeting the interaction between integrase and cellular LEDGF/p75. Biochem Biophys Res Commun 375(1):139–144

    Article  PubMed  CAS  Google Scholar 

  • Emiliani S, Mousnier A, Busschots K, Maroun M, Van Maele B, Tempe D, Vandekerckhove L, Moisant F, Ben-Slama L, Witvrouw M, Christ F, Rain JC, Dargemont C, Debyser Z, Benarous R (2005) Integrase mutants defective for interaction with LEDGF/p75 are impaired in chromosome tethering and HIV-1 replication. J Biol Chem 280(27):25517–25523

    Article  PubMed  CAS  Google Scholar 

  • Engelman A (1999) In vivo analysis of retroviral integrase structure and function. Adv Virus Res 52:411–426

    Article  PubMed  CAS  Google Scholar 

  • Engelman A, Cherepanov P (2008) The lentiviral integrase binding protein LEDGF/p75 and HIV-1 replication. PLoS Pathog 4(3):e1000046

    Article  PubMed  Google Scholar 

  • Fatma N, Singh DP, Shinohara T, Chylack LT Jr (2001) Transcriptional regulation of the antioxidant protein 2 gene, a thiol-specific antioxidant, by lens epithelium-derived growth factor to protect cells from oxidative stress. J Biol Chem 276(52):48899–48907

    Article  PubMed  CAS  Google Scholar 

  • Fatma N, Kubo E, Chylack LT Jr, Shinohara T, Akagi Y, Singh DP (2004) LEDGF regulation of alcohol and aldehyde dehydrogenases in lens epithelial cells: stimulation of retinoic acid production and protection from ethanol toxicity. Am J Physiol Cell Physiol 287(2):C508–C516

    Article  PubMed  CAS  Google Scholar 

  • Fatma N, Kubo E, Sharma P, Beier DR, Singh DP (2005) Impaired homeostasis and phenotypic abnormalities in Prdx6-/-mice lens epithelial cells by reactive oxygen species: increased expression and activation of TGFbeta. Cell Death Differ 12(7):734–750

    Article  PubMed  CAS  Google Scholar 

  • Faure A, Calmels C, Desjobert C, Castroviejo M, Caumont-Sarcos A, Tarrago-Litvak L, Litvak S, Parissi V (2005) HIV-1 integrase crosslinked oligomers are active in vitro. Nucleic Acids Res 33(3):977–986

    Article  PubMed  CAS  Google Scholar 

  • Fletcher TM 3rd, Soares MA, McPhearson S, Hui H, Wiskerchen M, Muesing MA, Shaw GM, Leavitt AD, Boeke JD, Hahn BH (1997) Complementation of integrase function in HIV-1 virions. Embo J 16(16):5123–5138

    Article  PubMed  CAS  Google Scholar 

  • Ganapathy V, Casiano CA (2004) Autoimmunity to the nuclear autoantigen DFS70 (LEDGF): what exactly are the autoantibodies trying to tell us? Arthritis Rheum 50(3):684–688

    Article  PubMed  Google Scholar 

  • Ganapathy V, Daniels T, Casiano CA (2003) LEDGF/p75: a novel nuclear autoantigen at the crossroads of cell survival and apoptosis. Autoimmun Rev 2(5):290–297

    Article  PubMed  CAS  Google Scholar 

  • Ge H, Si Y, Roeder RG (1998a) Isolation of cDNAs encoding novel transcription coactivators p52 and p75 reveals an alternate regulatory mechanism of transcriptional activation. Embo J 17(22):6723–6729

    Article  PubMed  CAS  Google Scholar 

  • Ge H, Si Y, Wolffe AP (1998b) A novel transcriptional coactivator, p52, functionally interacts with the essential splicing factor ASF/SF2. Mol Cell 2(6):751–759

    Article  PubMed  CAS  Google Scholar 

  • Grand FH, Koduru P, Cross NC, Allen SL (2005) NUP98-LEDGF fusion and t(9;11) in transformed chronic myeloid leukemia. Leuk Res 29(12):1469–1472

    Article  PubMed  CAS  Google Scholar 

  • Guiot E, Carayon K, Delelis O, Simon F, Tauc P, Zubin E, Gottikh M, Mouscadet JF, Brochon JC, Deprez E (2006) Relationship between the oligomeric status of HIV-1 integrase on DNA and enzymatic activity. J Biol Chem 281(32):22707–22719

    Article  PubMed  CAS  Google Scholar 

  • Hare S, Shun MC, Gupta SS, Valkov E, Engelman A, Cherepanov P (2009) A novel co-crystal structure affords the design of gain-of-function lentiviral integrase mutants in the presence of modified PSIP1/LEDGF/p75. PLoS Pathog 5(1):e1000259

    Article  PubMed  Google Scholar 

  • Heuer TS, Brown PO (1998) Photo-cross-linking studies suggest a model for the architecture of an active human immunodeficiency virus type 1 integrase-DNA complex. Biochemistry 37(19):6667–6678

    Article  PubMed  CAS  Google Scholar 

  • Hindmarsh P, Ridky T, Reeves R, Andrake M, Skalka AM, Leis J (1999) HMG protein family members stimulate human immunodeficiency virus type 1 and avian sarcoma virus concerted DNA integration in vitro. J Virol 73(4):2994–3003

    PubMed  CAS  Google Scholar 

  • Hombrouc A, De Rijck J, Hendrix J, Vandekerckhove L, Voet A, Maeyer MD, Witvrouw M, Engelborghs Y, Christ F, Gijsbers R, Debyser Z (2007) Virus Evolution Reveals an Exclusive Role for LEDGF/p75 in Chromosomal Tethering of HIV. PLoS Pathog 3(3):e47

    Article  Google Scholar 

  • Hou Y, McGuinness DE, Prongay AJ, Feld B, Ingravallo P, Ogert RA, Lunn CA, Howe JA (2008) Screening for antiviral inhibitors of the HIV integrase-LEDGF/p75 interaction using the AlphaScreen luminescent proximity assay. J Biomol Screen 13(5):406–414

    Article  PubMed  CAS  Google Scholar 

  • Huang TS, Myklebust LM, Kjarland E, Gjertsen BT, Pendino F, Bruserud O, Doskeland SO, Lillehaug JR (2007) LEDGF/p75 has increased expression in blasts from chemotherapy-resistant human acute myelogenic leukemia patients and protects leukemia cells from apoptosis in vitro. Mol Cancer 6:31

    Article  PubMed  CAS  Google Scholar 

  • Hussey DJ, Moore S, Nicola M, Dobrovic A (2001) Fusion of the NUP98 gene with the LEDGF/p52 gene defines a recurrent acute myeloid leukemia translocation. BMC Genet 2(1):20

    Article  PubMed  CAS  Google Scholar 

  • Kubo E, Fatma N, Sharma P, Shinohara T, Chylack LT Jr, Akagi Y, Singh DP (2002) Transactivation of involucrin, a marker of differentiation in keratinocytes, by lens epithelium-derived growth factor (LEDGF). J Mol Biol 320(5):1053–1063

    Article  PubMed  CAS  Google Scholar 

  • Li M, Mizuuchi M, Burke TR Jr, Craigie R (2006) Retroviral DNA integration: reaction pathway and critical intermediates. Embo J 25(6):1295–1304

    Article  PubMed  CAS  Google Scholar 

  • Llano M, Delgado S, Vanegas M, Poeschla EM (2004a) LEDGF/p75 prevents proteasomal degradation of HIV-1 integrase. J Biol Chem 279(53):55570–55577

    Article  PubMed  CAS  Google Scholar 

  • Llano M, Vanegas M, Fregoso O, Saenz DT, Chung S, Peretz M, Poeschla EM (2004b) LEDGF/p75 determines cellular trafficking of diverse lentiviral but not murine oncoretroviral integrase proteins and is a component of functional lentiviral pre-integration complexes. J Virol 78(17):9524–9537

    Article  PubMed  CAS  Google Scholar 

  • Llano M, Saenz DT, Meehan A, Wongthida P, Peretz M, Walker WH, Teo W, Poeschla EM (2006a) An essential role for LEDGF/p75 in HIV integration. Science 314(5798):461–464

    Article  PubMed  CAS  Google Scholar 

  • Llano M, Vanegas M, Hutchins N, Thompson D, Delgado S, Poeschla EM (2006b) Identification and characterization of the chromatin binding domains of the HIV-1 integrase interactor LEDGF/p75. J Mol Biol 360:760–773

    Article  PubMed  CAS  Google Scholar 

  • Machida S, Chaudhry P, Shinohara T, Singh DP, Reddy VN, Chylack LT Jr, Sieving PA, Bush RA (2001) Lens epithelium-derived growth factor promotes photoreceptor survival in light-damaged and RCS rats. Invest Ophthalmol Vis Sci 42(5):1087–1095

    PubMed  CAS  Google Scholar 

  • Maertens G, Cherepanov P, Pluymers W, Busschots K, De Clercq E, Debyser Z, Engelborghs Y (2003) LEDGF/p75 is essential for nuclear and chromosomal targeting of HIV-1 integrase in human cells. J Biol Chem 278(35):33528–33539

    Article  PubMed  CAS  Google Scholar 

  • Maertens G, Cherepanov P, Debyser Z, Engelborghs Y, Engelman A (2004) Identification and characterization of a functional nuclear localization signal in the HIV-1 integrase (IN) interactor LEDGF/p75. J Biol Chem 279(32):33421–33429

    Article  PubMed  CAS  Google Scholar 

  • Maertens G, Vercammen J, Debyser Z, Engelborghs Y (2005) Measuring protein-protein interactions inside living cells using single color fluorescence correlation spectroscopy. Application to human immunodeficiency virus type 1 integrase and LEDGF/p75. Faseb J 19((8):1039–1041

    Google Scholar 

  • Maertens GN, Cherepanov P, Engelman A (2006) Transcriptional co-activator p75 binds and tethers the Myc-interacting protein JPO2 to chromatin. J Cell Sci 119(Pt 12):2563–2571

    Article  PubMed  CAS  Google Scholar 

  • Marshall HM, Ronen K, Berry C, Llano M, Sutherland H, Saenz D, Bickmore W, Poeschla E, Bushman FD (2007) Role of PSIP1/LEDGF/p75 in lentiviral infectivity and integration targeting. PLoS ONE 2(12):e1340

    Article  PubMed  Google Scholar 

  • Matsui H, Lin LR, Singh DP, Shinohara T, Reddy VN (2001) Lens epithelium-derived growth factor: increased survival and decreased DNA breakage of human RPE cells induced by oxidative stress. Invest Ophthalmol Vis Sci 42(12):2935–2941

    PubMed  CAS  Google Scholar 

  • McKee CJ, Kessl JJ, Shkriabai N, Dar MJ, Engelman A, Kvaratskhelia M (2008) Dynamic modulation of HIV-1 integrase structure and function by cellular LEDGF protein. J Biol Chem 283(46):31802–31812

    Article  PubMed  CAS  Google Scholar 

  • Morerio C, Acquila M, Rosanda C, Rapella A, Tassano E, Micalizzi C, Panarello C (2005) t(9;11)(p22;p15) with NUP98-LEDGF fusion gene in pediatric acute myeloid leukemia. Leuk Res 29(4):467–470

    Article  PubMed  CAS  Google Scholar 

  • Mousnier A, Kubat N, Massias-Simon A, Segeral E, Rain JC, Benarous R, Emiliani S, Dargemont C (2007) von Hippel Lindau binding protein 1-mediated degradation of integrase affects HIV-1 gene expression at a postintegration step. Proc Natl Acad Sci U S A 104(34):13615–13620

    Article  PubMed  CAS  Google Scholar 

  • Muro Y, Sugiura K, Morita Y, Tomita Y (2008) High concomitance of disease marker autoantibodies in anti-DFS70/LEDGF autoantibody-positive patients with autoimmune rheumatic disease. Lupus 17(3):171–176

    Article  PubMed  CAS  Google Scholar 

  • Nakamura T (2005) NUP98 fusion in human leukemia: dysregulation of the nuclear pore and homeodomain proteins. Int J Hematol 82(1):21–27

    Article  PubMed  CAS  Google Scholar 

  • Nakamura M, Singh DP, Kubo E, Chylack LT Jr, Shinohara T (2000) LEDGF: survival of embryonic chick retinal photoreceptor cells. Invest Ophthalmol Vis Sci 41(5):1168–1175

    PubMed  CAS  Google Scholar 

  • Nishizawa Y, Usukura J, Singh DP, Chylack LT Jr, Shinohara T (2001) Spatial and temporal dynamics of two alternatively spliced regulatory factors, lens epithelium-derived growth factor (ledgf/p75) and p52, in the nucleus. Cell Tissue Res 305(1):107–114

    Article  PubMed  CAS  Google Scholar 

  • Ochs RL, Muro Y, Si Y, Ge H, Chan EK, Tan EM (2000) Autoantibodies to DFS 70 kd/transcription coactivator p75 in atopic dermatitis and other conditions. J Allergy Clin Immunol 105(6 Pt 1):1211–1220

    Article  PubMed  CAS  Google Scholar 

  • Ogawa Y, Sugiura K, Watanabe A, Kunimatsu M, Mishima M, Tomita Y, Muro Y (2004) Autoantigenicity of DFS70 is restricted to the conformational epitope of C-terminal alpha-helical domain. J Autoimmun 23(3):221–231

    Article  PubMed  CAS  Google Scholar 

  • Pandey KK, Sinha S, Grandgenett DP (2007) Transcriptional coactivator LEDGF/p75 modulates human immunodeficiency virus type 1 integrase-mediated concerted integration. J Virol 81(8):3969–3979

    Article  PubMed  CAS  Google Scholar 

  • Poeschla EM (2008) Integrase, LEDGF/p75 and HIV replication. Cell Mol Life Sci 65:1403–1424

    Article  PubMed  CAS  Google Scholar 

  • Raghavendra NK, Engelman A (2007) LEDGF/p75 interferes with the formation of synaptic nucleoprotein complexes that catalyze full-site HIV-1 DNA integration in vitro: implications for the mechanism of viral cDNA integration. Virology 360(1):1–5

    Article  PubMed  CAS  Google Scholar 

  • Rahman S, Lu R, Vandegraaff N, Cherepanov P, Engelman A (2007) Structure-based mutagenesis of the integrase-LEDGF/p75 interface uncouples a strict correlation between in vitro protein binding and HIV-1 fitness. Virology 357(1):79–90

    Article  PubMed  CAS  Google Scholar 

  • Roudaia L, Speck NA (2008) A menage a trois in leukemia. Cancer Cell 14(1):3–5

    Article  PubMed  CAS  Google Scholar 

  • Schroder AR, Shinn P, Chen H, Berry C, Ecker JR, Bushman F (2002) HIV-1 integration in the human genome favors active genes and local hotspots. Cell 110(4):521–529

    Article  PubMed  CAS  Google Scholar 

  • Sharma P, Singh DP, Fatma N, Chylack LT Jr, Shinohara T (2000) Activation of LEDGF gene by thermal-and oxidative-stresses. Biochem Biophys Res Commun 276(3):1320–1324

    Article  PubMed  CAS  Google Scholar 

  • Sharma P, Fatma N, Kubo E, Shinohara T, Chylack LT Jr, Singh DP (2003) Lens epithelium-derived growth factor relieves transforming growth factor-beta1-induced transcription repression of heat shock proteins in human lens epithelial cells. J Biol Chem 278(22):20037–20046

    Article  PubMed  CAS  Google Scholar 

  • Shin JH, Piao CS, Lim CM, Lee JK (2008) LEDGF binding to stress response element increases alphaB-crystallin expression in astrocytes with oxidative stress. Neurosci Lett 435(2):131–136

    Article  PubMed  CAS  Google Scholar 

  • Shinohara T, Singh DP, Fatma N (2002) LEDGF, a survival factor, activates stress-related genes. Prog Retin Eye Res 21(3):341–358

    Article  PubMed  CAS  Google Scholar 

  • Shun MC, Raghavendra NK, Vandegraaff N, Daigle JE, Hughes S, Kellam P, Cherepanov P, Engelman A (2007) LEDGF/p75 functions downstream from preintegration complex formation to effect gene-specific HIV-1 integration. Genes Dev 21(14):1767–1778

    Article  PubMed  CAS  Google Scholar 

  • Shun MC, Botbol Y, Li X, Di Nunzio F, Daigle JE, Yan N, Lieberman J, Lavigne M, Engelman A (2008) Identification and characterization of PWWP domain residues critical for LEDGF/p75 chromatin binding and human immunodeficiency virus type 1 infectivity. J Virol 82(23):11555–11567

    Article  PubMed  CAS  Google Scholar 

  • Singh DP, Ohguro N, Chylack LT Jr, Shinohara T (1999) Lens epithelium-derived growth factor: increased resistance to thermal and oxidative stresses. Invest Ophthalmol Vis Sci 40(7):1444–1451

    PubMed  CAS  Google Scholar 

  • Singh DP, Kimura A, Chylack LT Jr, Shinohara T (2000a) Lens epithelium-derived growth factor (LEDGF/p75) and p52 are derived from a single gene by alternative splicing. Gene 242(1–2):265–273

    Article  PubMed  CAS  Google Scholar 

  • Singh DP, Ohguro N, Kikuchi T, Sueno T, Reddy VN, Yuge K, Chylack LT Jr, Shinohara T (2000b) Lens epithelium-derived growth factor: effects on growth and survival of lens epithelial cells, keratinocytes, and fibroblasts. Biochem Biophys Res Commun 267(1):373–381

    Article  PubMed  CAS  Google Scholar 

  • Singh DP, Fatma N, Kimura A, Chylack LT Jr, Shinohara T (2001) LEDGF binds to heat shock and stress-related element to activate the expression of stress-related genes. Biochem Biophys Res Commun 283(4):943–955

    Article  PubMed  CAS  Google Scholar 

  • Singh DP, Kubo E, Takamura Y, Shinohara T, Kumar A, Chylack LT Jr, Fatma N (2006) DNA binding domains and nuclear localization signal of LEDGF: contribution of two helix-turn-helix (HTH)-like domains and a stretch of 58 amino acids of the N-terminal to the trans-activation potential of LEDGF. J Mol Biol 355(3):379–394

    Article  PubMed  CAS  Google Scholar 

  • Sinha S, Pursley MH, Grandgenett DP (2002) Efficient concerted integration by recombinant human immunodeficiency virus type 1 integrase without cellular or viral cofactors. J Virol 76(7):3105–3113

    Article  PubMed  CAS  Google Scholar 

  • Slape C, Aplan PD (2004) The role of NUP98 gene fusions in hematologic malignancy. Leuk Lymphoma 45(7):1341–1350

    Article  PubMed  CAS  Google Scholar 

  • Steigbigel RT, Cooper DA, Kumar PN, Eron JE, Schechter M, Markowitz M, Loutfy MR, Lennox JL, Gatell JM, Rockstroh JK, Katlama C, Yeni P, Lazzarin A, Clotet B, Zhao J, Chen J, Ryan DM, Rhodes RR, Killar JA, Gilde LR, Strohmaier KM, Meibohm AR, Miller MD, Hazuda DJ, Nessly ML, DiNubile MJ, Isaacs RD, Nguyen BY, Teppler H (2008) Raltegravir with optimized background therapy for resistant HIV-1 infection. N Engl J Med 359(4):339–354

    Article  PubMed  Google Scholar 

  • Sutherland HG, Newton K, Brownstein DG, Holmes MC, Kress C, Semple CA, Bickmore WA (2006) Disruption of Ledgf/Psip1 results in perinatal mortality and homeotic skeletal transformations. Mol Cell Biol 26(19):7201–7210

    Article  PubMed  CAS  Google Scholar 

  • Takamura Y, Fatma N, Kubo E, Singh DP (2006) Regulation of heavy subunit chain of gamma-glutamylcysteine synthetase by tumor necrosis factor-alpha in lens epithelial cells: role of LEDGF/p75. Am J Physiol Cell Physiol 290(2):C554–C566

    Article  PubMed  CAS  Google Scholar 

  • Turlure F, Maertens G, Rahman S, Cherepanov P, Engelman A (2006) A tripartite DNA-binding element, comprised of the nuclear localization signal and two AT-hook motifs, mediates the association of LEDGF/p75 with chromatin in vivo. Nucleic Acids Res 34(5):1663–1675

    Article  Google Scholar 

  • Van Maele B, Busschots K, Vandekerckhove L, Christ F, Debyser Z (2006) Cellular co-factors of HIV-1 integration. Trends Biochem Sci 31(2):98–105

    Article  PubMed  Google Scholar 

  • Vandegraaff N, Devroe E, Turlure F, Silver PA, Engelman A (2006) Biochemical and genetic analyses of integrase-interacting proteins lens epithelium-derived growth factor (LEDGF)/p75 and hepatoma-derived growth factor related protein 2 (HRP2) in preintegration complex function and HIV-1 replication. Virology 346(2):415–426

    Article  PubMed  CAS  Google Scholar 

  • Vandekerckhove L, Christ F, Van Maele B, De Rijck J, Gijsbers R, Van den Haute C, Witvrouw M, Debyser Z (2006) Transient and stable knockdown of the integrase cofactor LEDGF/p75 reveals its role in the replication cycle of human immunodeficiency virus. J Virol 80(4):1886–1896

    Article  PubMed  CAS  Google Scholar 

  • Vanegas M, Llano M, Delgado S, Thompson D, Peretz M, Poeschla E (2005) Identification of the LEDGF/p75 HIV-1 integrase-interaction domain and NLS reveals NLS-independent chromatin tethering. J Cell Sci 118(Pt 8):1733–1743

    Article  PubMed  CAS  Google Scholar 

  • Watanabe A, Kodera M, Sugiura K, Usuda T, Tan EM, Takasaki Y, Tomita Y, Muro Y (2004) Anti-DFS70 antibodies in 597 healthy hospital workers. Arthritis Rheum 50(3):892–900

    Article  PubMed  CAS  Google Scholar 

  • Wu X, Liu H, Xiao H, Conway JA, Hunter E, Kappes JC (1997) Functional RT and IN incorporated into HIV-1 particles independently of the Gag/Pol precursor protein. Embo Journal 16(16):5113–5122

    Article  PubMed  CAS  Google Scholar 

  • Wu X, Daniels T, Molinaro C, Lilly MB, Casiano CA (2002) Caspase cleavage of the nuclear autoantigen LEDGF/p75 abrogates its pro-survival function: implications for autoimmunity in atopic disorders. Cell Death Differ 9(9):915–925

    Article  PubMed  CAS  Google Scholar 

  • Yan N, Cherepanov P, Daigle JE, Engelman A, Lieberman J (2009) The SET complex acts as a barrier to autointegration of HIV-1. PLoS Pathog 5(3):e1000327

    Article  PubMed  Google Scholar 

  • Yokoyama A, Cleary ML (2008) Menin critically links MLL proteins with LEDGF on cancer-associated target genes. Cancer Cell 14(1):36–46

    Article  PubMed  CAS  Google Scholar 

  • Zhao H, Wang Y, Yin ZQ (2008a) A comparison of LEDGFp52 and CNTF on the in vitro growth of rat retinal ganglion cell neurites. Neurosci Lett 440(1):9–13

    Article  PubMed  CAS  Google Scholar 

  • Zhao HS, Chen SJ, Wu N, Wang XQ, Yin ZQ, Wang Y (2008b) LEDGFp52 controls rat retinal ganglion cell neurite growth in culture and regulates specific neuronal growth-associated genes and protein production. J Int Med Res 36(4):815–829

    PubMed  CAS  Google Scholar 

Download references

Acknowledgements

We are grateful for support from N.I.H. grants 1SC2GM082301 to M. L. and AI77344 to E.M.P. We thank P. Spearman for editorial advice, and patience.

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Correspondence to Eric M. Poeschla .

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Llano, M., Morrison, J., Poeschla, E.M. (2009). Virological and Cellular Roles of the Transcriptional Coactivator LEDGF/p75. In: Spearman, P., Freed, E. (eds) HIV Interactions with Host Cell Proteins. Current Topics in Microbiology and Immunology, vol 339. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-02175-6_7

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