Expression of human immunodeficiency virus type I tat results in down-regulation of bcl-2 and induction of apoptosis in hematopoietic cells.

Abstract:

:Infection by human immunodeficiency virus type 1 (HIV-1) is characterized by progressive loss of various cell types, mainly CD4+ T lymphocytes. While a passive role for the virus in cell destruction is recognized, it does not account for the vast amount of cell death including those of uninfected "bystander' cells. Since in the past we and others have demonstrated the capacity of the Tat protein of HIV-1 to modulate the expression of various cellular genes and that Tat secreted by HIV-infected cells can be readily taken up by various cell types, we have investigated the role of Tat on inducing apoptosis. Our results indicate that T lymphocytes transfected to constitutively express HIV-1 tat, when grown under serum-free conditions results in rapid apoptosis characterized by typical ultrastructural features and DNA fragmentation. Additionally, we observed that in several hematopoietic cell types, including T and B lymphoid cells and monocytoid cells, the expression of HIV-1 tat results in down-regulation of bcl-2, an oncogene with known potential for inhibition of apoptosis. The tat-mediated down-regulation of bcl-2 was observed at both the transcriptional and translational levels. Also, tat-transfected cells expressed increased amounts of bax, a bcl-2 family protein known to induce apoptosis. While these results support reports in the literature of an active role for tat in inducing cell death in HIV-infected individuals, they point to a new mechanism involving Tat-mediated modulation of bcl-2 and bax.

journal_name

Oncogene

journal_title

Oncogene

authors

Sastry KJ,Marin MC,Nehete PN,McConnell K,el-Naggar AK,McDonnell TJ

subject

Has Abstract

pub_date

1996-08-01 00:00:00

pages

487-93

issue

3

eissn

0950-9232

issn

1476-5594

journal_volume

13

pub_type

杂志文章

相关文献

ONCOGENE文献大全
  • The non-catalytic domain of ras-GAP inhibits transformation induced by G protein coupled receptors.

    abstract::We have studied the relationship between ras-GAP and G protein coupled receptors in a proliferative setting comprised of NIH3T3 expressing transfected muscarinic receptors (mAChRs). GAP expression plasmids were engineered to encode wild-type GAP, its carboxyl-terminal catalytic domain, a mutant lacking a portion of th...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:

    authors: Xu N,McCormick F,Gutkind JS

    更新日期:1994-02-01 00:00:00

  • Evidence for a labile intermediate in the butyrate induced reduction of the level of c-myc RNA in SW837 rectal carcinoma cells.

    abstract::We have found that the differentiation inducer butyric acid causes the synthesis of a cellular protein(s) that mediates a rapid decline in the level of myc RNA in SW837, a cell line derived from a human adenocarcinoma of the rectum. This effect was dose-dependent and was maximal at 1 mM. Among the short chain fatty ac...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:

    authors: Herold KM,Rothberg PG

    更新日期:1988-10-01 00:00:00

  • Bioengineered tumor microenvironments with naked mole rats high-molecular-weight hyaluronan induces apoptosis in breast cancer cells.

    abstract::The naked mole rat (nmr) is cancer resistant due to the abundant production of extremely high-molecular-weight hyaluronan (EHMW-HA). However, whether EHMW-HA has similar anti-cancer effects in mice and humans remains to be determined. The present study used breast cancer cells to clarify the effect of EHMW-HA on breas...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:10.1038/s41388-019-0719-4

    authors: Zhao Y,Qiao S,Hou X,Tian H,Deng S,Ye K,Nie Y,Chen X,Yan H,Tian W

    更新日期:2019-05-01 00:00:00

  • MicroRNA-21 promotes cell transformation by targeting the programmed cell death 4 gene.

    abstract::MicroRNAs (miRNAs) are small noncoding RNA molecules that negatively control expression of target genes in animals and plants. The microRNA-21 gene (mir-21) has been identified as the only miRNA commonly overexpressed in solid tumors of the lung, breast, stomach, prostate, colon, brain, head and neck, esophagus and pa...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:10.1038/onc.2008.72

    authors: Lu Z,Liu M,Stribinskis V,Klinge CM,Ramos KS,Colburn NH,Li Y

    更新日期:2008-07-17 00:00:00

  • Age-dependent and tissue-specific changes of DNA methylation within and around the c-fos gene in mice.

    abstract::The degree of DNA methylation in the c-fos gene and its vicinity in liver, brain and spleen of mice of different ages was examined using methylation-sensitive restriction endonucleases. The gene had an invariable unmethylated domain from 1.8kb upstream of the cap site to the first intron. The domain was flanked on bot...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:

    authors: Uehara Y,Ono T,Kurishita A,Kokuryu H,Okada S

    更新日期:1989-08-01 00:00:00

  • Interaction between p53 and TGF beta 1 in control of epithelial cell proliferation.

    abstract::Although loss of sensitivity to transforming growth factor beta (TGF beta) may be a key step in the escape of epithelial tumours from normal growth control, the intracellular signals determining responsiveness remain controversial, particularly the role of p53. We have investigated this question using thyroid epitheli...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:

    authors: Blaydes JP,Schlumberger M,Wynford-Thomas D,Wyllie FS

    更新日期:1995-01-19 00:00:00

  • Development of T-cell lymphomas in Emu-IEX-1 mice.

    abstract::Inhibition of apoptosis or abnormal cell survival can result in tumorigenesis by facilitating the insurgence of various mutations. Immediate-early response gene X-1 (IEX-1), protects T cells from apoptosis induced by the ligation of Fas or the T-cell receptor (TCR)/CD3 complex in Emu-IEX-1 mice that direct the gene ex...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:10.1038/sj.onc.1206707

    authors: Zhang Y,Finegold MJ,Porteu F,Kanteti P,Wu MX

    更新日期:2003-10-09 00:00:00

  • Hyperactive autocrine loop mediated by a NDF-related factor in neoplastic hamster embryo fibroblasts expressing an activated cph oncogene.

    abstract::We described previously the characterization of a novel oncogene, cph, activated in primary Syrian hamster embryo fibroblasts by exposure to 3-methylcholanthrene (Velasco et al., Oncogene 9:2065-2069, 1994). The present report describes the participation in the neoplastic conversion of cph-expressing (81C39) hamster f...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:

    authors: Avila MA,Velasco JA,Cho C,Lupu R,Wen D,Notario V

    更新日期:1995-03-02 00:00:00

  • Expression of normal and mutant ras proteins in human acute leukemia.

    abstract::The expression of normal and mutant ras genes in human acute leukemias was assessed by the direct analysis of p21ras polypeptides, using immunoprecipitation with monoclonal antibodies. High-resolution two-dimensional gel electrophoresis permits the identification of a wide array of activated ras alleles encoding prote...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:

    authors: Shen WP,Aldrich TH,Venta-Perez G,Franza BR Jr,Furth ME

    更新日期:1987-05-01 00:00:00

  • WNT signaling modulates PD-L1 expression in the stem cell compartment of triple-negative breast cancer.

    abstract::Triple-negative breast cancers (TNBCs) are characterized by a poor prognosis and lack of targeted treatments, and thus, new therapeutic strategies are urgently needed. Inhibitors against programmed death-1 (PD-1)/PD-1 ligand (PD-L1) have shown significant efficacy in various solid cancers, but their activity against T...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:10.1038/s41388-019-0700-2

    authors: Castagnoli L,Cancila V,Cordoba-Romero SL,Faraci S,Talarico G,Belmonte B,Iorio MV,Milani M,Volpari T,Chiodoni C,Hidalgo-Miranda A,Tagliabue E,Tripodo C,Sangaletti S,Di Nicola M,Pupa SM

    更新日期:2019-05-01 00:00:00

  • The oncogene PDGF-B provides a key switch from cell death to survival induced by TNF.

    abstract::Tumor necrosis factor (TNF) induces both cell death and survival signals. NF-kappaB, a transcription factor activated by TNF, is critical for controlling survival signals through trans-activation of downstream target genes. However, few NF-kappaB target survival genes have been identified with direct roles in oncogene...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:10.1038/sj.onc.1208516

    authors: Au PY,Martin N,Chau H,Moemeni B,Chia M,Liu FF,Minden M,Yeh WC

    更新日期:2005-04-28 00:00:00

  • Junctional adhesion molecule-A is co-expressed with HER2 in breast tumors and acts as a novel regulator of HER2 protein degradation and signaling.

    abstract::Junctional adhesion molecule-A (JAM-A) is a membranous cell-cell adhesion protein involved in tight-junction formation in epithelial and endothelial cells. Its overexpression in breast tumors has recently been linked with increased risk of metastasis. We sought to identify if JAM-A overexpression was associated with s...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:10.1038/onc.2012.276

    authors: Brennan K,McSherry EA,Hudson L,Kay EW,Hill AD,Young LS,Hopkins AM

    更新日期:2013-05-30 00:00:00

  • Structural analysis of the human nov proto-oncogene and expression in Wilms tumor.

    abstract::We have cloned and sequenced the nov gene (novH) which is the homolog of the chicken nov proto-oncogene overexpressed in avian nephroblastomas. The novH gene is highly conserved and encodes a putative IGF-binding protein similar to that of chicken. We report that relative to autologous normal kidney expression of novH...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:

    authors: Martinerie C,Huff V,Joubert I,Badzioch M,Saunders G,Strong L,Perbal B

    更新日期:1994-09-01 00:00:00

  • Distinct conformations of p53 are observed at different stages of keratinocyte differentiation.

    abstract::p53 is a multifunctional protein that has been shown to inhibit the growth of transformed cells, arrest the cell cycle of normal cells, regulate gene transcription and influence cellular differentiation, apoptosis and senescence. This study was undertaken to determine if the expression of p53 in keratinocytes varied d...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:

    authors: Spandau DF

    更新日期:1994-07-01 00:00:00

  • Expression of epithelial phenotype is enhanced by v-Ha-ras in rat endometrial cells immortalized by SV40 T antigen.

    abstract::To study the interplay of steroid hormones and oncogenes in the control of endometrial cell proliferation and differentiation we have generated cell lines derived from rat endometrium by expressing the immortalizing oncogenes adeno E1A or SV40 large T antigen. These lines are positive for mesenchymal markers and conta...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:

    authors: Helftenbein G,Alvarez CV,Tuohimaa P,Beato M

    更新日期:1993-08-01 00:00:00

  • SUMOylation inhibits FOXM1 activity and delays mitotic transition.

    abstract::The forkhead box transcription factor FOXM1 is an essential effector of G2/M-phase transition, mitosis and the DNA damage response. As such, it is frequently deregulated during tumorigenesis. Here we report that FOXM1 is dynamically modified by SUMO1 but not by SUMO2/3 at multiple sites. We show that FOXM1 SUMOylation...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:10.1038/onc.2013.546

    authors: Myatt SS,Kongsema M,Man CW,Kelly DJ,Gomes AR,Khongkow P,Karunarathna U,Zona S,Langer JK,Dunsby CW,Coombes RC,French PM,Brosens JJ,Lam EW

    更新日期:2014-08-21 00:00:00

  • A member of the ras gene superfamily is expressed specifically in T, B and myeloid hemopoietic cells.

    abstract::A 1.26 kb murine cDNA having 31% homology with human ras and 55% homology with human rho proteins was isolated using an oligonucleotide probe homologous to catalytic subdomain of a tyrosine kinase subfamily. Northern blot analysis indicates that the expression of the murine gene is restricted to the cells of hemopoiet...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:

    authors: Shirsat NV,Pignolo RJ,Kreider BL,Rovera G

    更新日期:1990-05-01 00:00:00

  • Constitutive DNA damage is linked to DNA replication abnormalities in Bloom's syndrome cells.

    abstract::Bloom's syndrome (BS) is an autosomal recessive disorder associated with an elevated incidence of cancers. The gene mutated in BS, BLM, encodes a RecQ helicase family member. BS cells exhibit genomic instability, including excessive homologous recombination and chromosomal aberrations. We reported previously that BS c...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:10.1038/sj.onc.1206970

    authors: Rassool FV,North PS,Mufti GJ,Hickson ID

    更新日期:2003-11-27 00:00:00

  • Allelic loss at 7q31.1 in human primary ovarian carcinomas suggests the existence of a tumor suppressor gene.

    abstract::We studied loss of heterozygosity (LOH) in chromosome 7q in order to determine the location of a putative tumor suppressor gene (TSG) in human epithelial ovarian carcinomas. Samples were obtained from 26 primary ovarian carcinomas at the time of staging laparotomy. Paired normal and tumoral DNAs were used as templates...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:

    authors: Zenklusen JC,Weitzel JN,Ball HG,Conti CJ

    更新日期:1995-07-20 00:00:00

  • Synergistic functions of E2F7 and E2F8 are critical to suppress stress-induced skin cancer.

    abstract::E2F transcription factors are important regulators of the cell cycle, and unrestrained activation of E2F-dependent transcription is considered to be an important driver of tumor formation and progression. Although highly expressed in normal skin and skin cancer, the role of the atypical E2Fs, E2F7 and E2F8, in keratin...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:10.1038/onc.2016.251

    authors: Thurlings I,Martínez-López LM,Westendorp B,Zijp M,Kuiper R,Tooten P,Kent LN,Leone G,Vos HJ,Burgering B,de Bruin A

    更新日期:2017-02-09 00:00:00

  • Signaling coupled epigenomic regulation of gene expression.

    abstract::Inheritance of genomic information independent of the DNA sequence, the epigenetics, as well as gene transcription are profoundly shaped by serine/threonine and tyrosine signaling kinases and components of the chromatin remodeling complexes. To precisely respond to a changing external milieu, human cells efficiently t...

    journal_title:Oncogene

    pub_type: 杂志文章,评审

    doi:10.1038/onc.2017.201

    authors: Kumar R,Deivendran S,Santhoshkumar TR,Pillai MR

    更新日期:2017-10-26 00:00:00

  • Inhibition of cyclo-oxygenase 2 expression in colon cells by the chemopreventive agent curcumin involves inhibition of NF-kappaB activation via the NIK/IKK signalling complex.

    abstract::Colorectal cancer is a major cause of cancer deaths in Western countries, but epidemiological data suggest that dietary modification might reduce these by as much as 90%. Cyclo-oxygenase 2 (COX2), an inducible isoform of prostaglandin H synthase, which mediates prostaglandin synthesis during inflammation, and which is...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:10.1038/sj.onc.1202980

    authors: Plummer SM,Holloway KA,Manson MM,Munks RJ,Kaptein A,Farrow S,Howells L

    更新日期:1999-10-28 00:00:00

  • Deregulated expression of E2F-1 induces cyclin A- and E-associated kinase activities independently from cell cycle position.

    abstract::The transcription factor E2F activates genes required for S phase, such as cyclin E and cyclin A. We show that, contrary to long term effects of E2F-1 overexpression, short ectopic overexpression of this transcription factor in logarithmically growing cells does neither affect the cell cycle distribution nor the cell ...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:10.1038/sj.onc.1201061

    authors: Soucek T,Pusch O,Hengstschläger-Ottnad E,Adams PD,Hengstschläger M

    更新日期:1997-05-15 00:00:00

  • Involvement of cdc2-mediated phosphorylation in the cell cycle-dependent regulation of p185neu.

    abstract::We previously reported cell cycle-dependent negative regulation of p185neu (decreased tyrosine phosphorylation and kinase activity, with electrophoretic mobility retarded by serine/threonine phosphorylation) in M phase and the escape of mutation-activated p185neu* from this regulation. Our present results showed that ...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:10.1038/sj.onc.1201442

    authors: Kiyokawa N,Karunagaran D,Lee EK,Xie Y,Yan DH,Hung MC

    更新日期:1997-11-27 00:00:00

  • Wn mutation of c-kit receptor affects its post-translational processing and extracellular expression.

    abstract::The W locus of mice encodes the c-kit receptor tyrosine kinase. Recently, we characterized a novel mutant allele, Wn, and demonstrated that the c-kit protein synthesized in Wn/Wn cultured mast cells (CMC) was reduced in size and not expressed on their surface (Tsujimura et al., 1993). In this study, we further examine...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:

    authors: Koshimizu U,Tsujimura T,Isozaki K,Nomura S,Furitsu T,Kanakura Y,Kitamura Y,Nishimune Y

    更新日期:1994-01-01 00:00:00

  • Murine WNT11 is a secreted glycoprotein that morphologically transforms mammary epithelial cells.

    abstract::Wnt genes encode a set of structurally related cell surface glycoproteins that appear to have roles in cell-cell signalling. The ectopic expression of several murine Wnt genes has been implicated in the transformation of mammary epithelial and the onset of mammary tumours. Wnt11 is expressed in the developing embryo i...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:

    authors: Christiansen JH,Monkley SJ,Wainwright BJ

    更新日期:1996-06-20 00:00:00

  • RNA silencing of S-phase kinase-interacting protein 2 inhibits proliferation and centrosome amplification in lung cancer cells.

    abstract::The S-phase kinase-associated protein-2 (SKP2) plays a key role in ubiquitin-mediated proteolysis, which results in the progression of cells from a quiescence to proliferative state. SKP2 is overexpressed in a variety of tumors. In this study, we used small interfering RNAs (siRNAs) to inhibit the SKP2 expression in l...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:10.1038/sj.onc.1208459

    authors: Jiang F,Caraway NP,Li R,Katz RL

    更新日期:2005-05-12 00:00:00

  • Transactivation of host and viral genes by the adenovirus E1B 19K tumor antigen.

    abstract::Adenovirus contains two nuclear oncogenes, the EIA and EIB genes, which cooperatively can transform cells through mechanisms that are not understood. The transcriptional activities of the E1A gene (transactivation and repression) are well studied. Using transient expression assays, we show here that the 19,000-Da E1B ...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:

    authors: Herrmann CH,Dery CV,Mathews MB

    更新日期:1987-01-01 00:00:00

  • Identification of a dominant-negative mutation in the yeast CDC25 guanine nucleotide exchange factor for Ras.

    abstract::In previous studies we changed five conserved amino acid residues in the catalytic domain of the yeast Ras-specific guanine nucleotide exchange factor CDC25GEF (Park et al., 1994). One of the substitutions (R1489E) resulted in a molecule which could bind Ras but was catalytically inactive. These observations suggested...

    journal_title:Oncogene

    pub_type: 杂志文章

    doi:10.1038/sj.onc.1200893

    authors: Park W,Mosteller RD,Broek D

    更新日期:1997-02-20 00:00:00

  • Midkine (MDK) growth factor: a key player in cancer progression and a promising therapeutic target.

    abstract::Midkine is a heparin-binding growth factor, originally reported as the product of a retinoic acid-responsive gene during embryogenesis, but currently viewed as a multifaceted factor contributing to both normal tissue homeostasis and disease development. Midkine is abnormally expressed at high levels in various human m...

    journal_title:Oncogene

    pub_type: 杂志文章,评审

    doi:10.1038/s41388-019-1124-8

    authors: Filippou PS,Karagiannis GS,Constantinidou A

    更新日期:2020-03-01 00:00:00