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Defective lymphotoxin-beta receptor-induced NF-kappaB transcriptional activity in NIK-deficient mice (2001)

L. Yin ; L. Wu ; H. Wesche ; [et al.]

American Association for the Advancement of Science (AAAS)

In: Science. 291(5511): 2162-5. doi: 10.1126/science.1058453.

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Publication Date: 2001-03-17

Description: The role of NF-kappaB-inducing kinase (NIK) in cytokine signaling remains controversial. To identify the physiologic functions of NIK, we disrupted the NIK locus by gene targeting. Although NIK-/- mice displayed abnormalities in both lymphoid tissue development and antibody responses, NIK-/- cells manifested normal NF-kappaB DNA binding activity when treated with a variety of cytokines, including tumor necrosis factor (TNF), interleukin-1 (IL-1), and lymphotoxin-beta (LTbeta). However, NIK was selectively required for gene transcription induced through ligation of LTbeta receptor but not TNF receptors. These results reveal that NIK regulates the transcriptional activity of NF-kappaB in a receptor-restricted manner.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yin, L -- Wu, L -- Wesche, H -- Arthur, C D -- White, J M -- Goeddel, D V -- Schreiber, R D -- New York, N.Y. -- Science. 2001 Mar 16;291(5511):2162-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Immunology, Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11251123" target="_blank"〉PubMed〈/a〉

Keywords: Animals ; Antibodies, Monoclonal ; B-Lymphocytes/metabolism ; Cells, Cultured ; DNA/metabolism ; Fibroblasts/metabolism ; Gene Targeting ; Genes, Reporter ; Interleukin-1/metabolism/pharmacology ; Ligands ; Lymphoid Tissue/abnormalities ; Lymphotoxin beta Receptor ; Mice ; Mice, Inbred C57BL ; NF-kappa B/genetics/*metabolism ; Protein-Serine-Threonine Kinases/genetics/*metabolism ; Receptors, Tumor Necrosis Factor/immunology/*metabolism ; Signal Transduction ; *Transcription, Genetic ; Tumor Necrosis Factor-alpha/metabolism/pharmacology

Print ISSN: 0036-8075

Electronic ISSN: 1095-9203

Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics

Published by American Association for the Advancement of Science (AAAS)

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BAFF-R, a newly identified TNF receptor that specifically interacts with BAFF (2001)

J. S. Thompson ; S. A. Bixler ; F. Qian ; [et al.]

American Association for the Advancement of Science (AAAS)

In: Science. 293(5537): 2108-11. doi: 10.1126/science.1061965.

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Publication Date: 2001-08-18

Description: B cell homeostasis has been shown to critically depend on BAFF, the B cell activation factor from the tumor necrosis factor (TNF) family. Although BAFF is already known to bind two receptors, BCMA and TACI, we have identified a third receptor for BAFF that we have termed BAFF-R. BAFF-R binding appears to be highly specific for BAFF, suggesting a unique role for this ligand-receptor interaction. Consistent with this, the BAFF-R locus is disrupted in A/WySnJ mice, which display a B cell phenotype qualitatively similar to that of the BAFF-deficient mice. Thus, BAFF-R appears to be the principal receptor for BAFF-mediated mature B cell survival.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thompson, J S -- Bixler, S A -- Qian, F -- Vora, K -- Scott, M L -- Cachero, T G -- Hession, C -- Schneider, P -- Sizing, I D -- Mullen, C -- Strauch, K -- Zafari, M -- Benjamin, C D -- Tschopp, J -- Browning, J L -- Ambrose, C -- New York, N.Y. -- Science. 2001 Sep 14;293(5537):2108-11. Epub 2001 Aug 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biogen, 12 Cambridge Center, Cambridge, MA 02142, USA., The Institute of Biochemistry, University of Lausanne, CH-1066, Epalinges, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11509692" target="_blank"〉PubMed〈/a〉

Keywords: Amino Acid Sequence ; Animals ; B-Cell Activating Factor ; B-Cell Activation Factor Receptor ; B-Cell Maturation Antigen ; B-Lymphocytes/immunology/metabolism/*physiology ; Cell Line ; Chromosome Mapping ; Chromosomes, Human, Pair 22 ; Cloning, Molecular ; Homeostasis ; Humans ; Ligands ; Lymphoid Tissue/metabolism ; Male ; Membrane Proteins/*metabolism ; Mice ; Mice, Inbred A ; Mice, Inbred C57BL ; Molecular Sequence Data ; RNA, Messenger/chemistry/genetics/metabolism ; Receptors, Tumor Necrosis Factor/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Transfection ; Transmembrane Activator and CAML Interactor Protein ; Tumor Necrosis Factor-alpha/*metabolism

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Electronic ISSN: 1095-9203

Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics

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Extension of life-span by loss of CHICO, a Drosophila insulin receptor substrate protein (2001)

D. J. Clancy ; D. Gems ; L. G. Harshman ; [et al.]

American Association for the Advancement of Science (AAAS)

In: Science. 292(5514): 104-6. doi: 10.1126/science.1057991.

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Publication Date: 2001-04-09

Description: The Drosophila melanogaster gene chico encodes an insulin receptor substrate that functions in an insulin/insulin-like growth factor (IGF) signaling pathway. In the nematode Caenorhabditis elegans, insulin/IGF signaling regulates adult longevity. We found that mutation of chico extends fruit fly median life-span by up to 48% in homozygotes and 36% in heterozygotes. Extension of life-span was not a result of impaired oogenesis in chico females, nor was it consistently correlated with increased stress resistance. The dwarf phenotype of chico homozygotes was also unnecessary for extension of life-span. The role of insulin/IGF signaling in regulating animal aging is therefore evolutionarily conserved.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clancy, D J -- Gems, D -- Harshman, L G -- Oldham, S -- Stocker, H -- Hafen, E -- Leevers, S J -- Partridge, L -- New York, N.Y. -- Science. 2001 Apr 6;292(5514):104-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University College London, Wolfson House, 4 Stephenson Way, London NW1 2HE, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11292874" target="_blank"〉PubMed〈/a〉

Keywords: Aging/*physiology ; Alleles ; Animals ; Body Constitution ; Carrier Proteins/genetics/metabolism ; Crosses, Genetic ; *Drosophila Proteins ; Drosophila melanogaster/genetics/*physiology ; Female ; Fertility ; Genes, Insect ; Heterozygote ; Hot Temperature ; Insect Proteins/*genetics/*metabolism ; Insulin/metabolism ; Insulin Receptor Substrate Proteins ; *Intracellular Signaling Peptides and Proteins ; Longevity/*physiology ; Male ; Mutation ; Oxidative Stress ; Protein-Tyrosine Kinases/genetics/metabolism ; *Receptor Protein-Tyrosine Kinases ; Receptor, Insulin/*metabolism ; Reproduction ; Signal Transduction ; Somatomedins/metabolism ; Starvation ; Superoxide Dismutase

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Electronic ISSN: 1095-9203

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An essential role for BAFF in the normal development of B cells through a BCMA-independent pathway (2001)

B. Schiemann ; J. L. Gommerman ; K. Vora ; [et al.]

American Association for the Advancement of Science (AAAS)

In: Science. 293(5537): 2111-4. doi: 10.1126/science.1061964.

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Publication Date: 2001-08-18

Description: The B cell activating factor BAFF (BlyS/TALL-1/zTNF4) is a tumor necrosis factor (TNF)-related ligand that promotes B cell survival and binds to three receptors (BCMA, TACI, and the recently described BAFF-R). Here we report an absolute requirement for BAFF in normal B cell development. Examination of secondary lymphoid organs from BAFF-deficient mice revealed an almost complete loss of follicular and marginal zone B lymphocytes. In contrast, mice lacking BCMA had normal-appearing B lymphocyte compartments. BAFF therefore plays a crucial role in B cell development and can function through receptors other than BCMA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schiemann, B -- Gommerman, J L -- Vora, K -- Cachero, T G -- Shulga-Morskaya, S -- Dobles, M -- Frew, E -- Scott, M L -- New York, N.Y. -- Science. 2001 Sep 14;293(5537):2111-4. Epub 2001 Aug 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biogen, 14 Cambridge Center, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11509691" target="_blank"〉PubMed〈/a〉

Keywords: Animals ; Antigens, CD/analysis ; B-Cell Activating Factor ; B-Cell Maturation Antigen ; B-Lymphocyte Subsets/cytology/immunology/physiology ; B-Lymphocytes/cytology/immunology/*physiology ; Bone Marrow Cells/cytology ; Cell Separation ; Cell Survival ; Flow Cytometry ; Immunoglobulins/blood ; Leukopoiesis ; Lymph Nodes/cytology/immunology ; Lymphocyte Count ; Lymphoid Tissue/cytology/immunology ; Membrane Proteins/deficiency/genetics/*physiology ; Mice ; Mice, Inbred A ; Mice, Knockout ; Phenotype ; Receptors, Tumor Necrosis Factor/deficiency/genetics/*physiology ; Signal Transduction ; Spleen/cytology/immunology ; Thymus Gland/cytology/immunology ; Tumor Necrosis Factor-alpha/deficiency/genetics/*physiology

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Electronic ISSN: 1095-9203

Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics

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Role of T-bet in commitment of TH1 cells before IL-12-dependent selection (2001)

A. C. Mullen ; F. A. High ; A. S. Hutchins ; [et al.]

American Association for the Advancement of Science (AAAS)

In: Science. 292(5523): 1907-10. doi: 10.1126/science.1059835.

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Publication Date: 2001-06-09

Description: How cytokines control differentiation of helper T (TH) cells is controversial. We show that T-bet, without apparent assistance from interleukin 12 (IL-12)/STAT4, specifies TH1 effector fate by targeting chromatin remodeling to individual interferon-gamma (IFN-gamma) alleles and by inducing IL-12 receptor beta2 expression. Subsequently, it appears that IL-12/STAT4 serves two essential functions in the development of TH1 cells: as growth signal, inducing survival and cell division; and as trans-activator, prolonging IFN-gamma synthesis through a genetic interaction with the coactivator, CREB-binding protein. These results suggest that a cytokine does not simply induce TH fate choice but instead may act as an essential secondary stimulus that mediates selective survival of a lineage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mullen, A C -- High, F A -- Hutchins, A S -- Lee, H W -- Villarino, A V -- Livingston, D M -- Kung, A L -- Cereb, N -- Yao, T P -- Yang, S Y -- Reiner, S L -- AI-42370/AI/NIAID NIH HHS/ -- EY-07131/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 2001 Jun 8;292(5523):1907-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Abramson Family Cancer Research Institute and Department of Medicine, University of Pennsylvania, Philadelphia, PA 19104-6160, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11397944" target="_blank"〉PubMed〈/a〉

Keywords: Alleles ; Animals ; CREB-Binding Protein ; Cell Differentiation ; Cell Division ; Cell Lineage ; Cells, Cultured ; DNA-Binding Proteins/metabolism ; Gene Expression Regulation ; Histones/metabolism ; Interferon-gamma/*biosynthesis/genetics ; Interleukin-12/*metabolism ; Lymphocyte Activation ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Nuclear Proteins/metabolism ; RNA, Messenger/genetics/metabolism ; Receptors, Interleukin/metabolism ; Receptors, Interleukin-12 ; STAT4 Transcription Factor ; Signal Transduction ; T-Box Domain Proteins ; Th1 Cells/cytology/*immunology/metabolism ; Trans-Activators/metabolism ; Transcription Factors/genetics/*metabolism

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Electronic ISSN: 1095-9203

Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics

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Induction of direct antimicrobial activity through mammalian toll-like receptors (2001)

S. Thoma-Uszynski ; S. Stenger ; O. Takeuchi ; [et al.]

American Association for the Advancement of Science (AAAS)

In: Science. 291(5508): 1544-7. doi: 10.1126/science.291.5508.1544.

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Publication Date: 2001-02-27

Description: The mammalian innate immune system retains from Drosophila a family of homologous Toll-like receptors (TLRs) that mediate responses to microbial ligands. Here, we show that TLR2 activation leads to killing of intracellular Mycobacterium tuberculosis in both mouse and human macrophages, through distinct mechanisms. In mouse macrophages, bacterial lipoprotein activation of TLR2 leads to a nitric oxide-dependent killing of intracellular tubercle bacilli, but in human monocytes and alveolar macrophages, this pathway was nitric oxide-independent. Thus, mammalian TLRs respond (as Drosophila Toll receptors do) to microbial ligands and also have the ability to activate antimicrobial effector pathways at the site of infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thoma-Uszynski, S -- Stenger, S -- Takeuchi, O -- Ochoa, M T -- Engele, M -- Sieling, P A -- Barnes, P F -- Rollinghoff, M -- Bolcskei, P L -- Wagner, M -- Akira, S -- Norgard, M V -- Belisle, J T -- Godowski, P J -- Bloom, B R -- Modlin, R L -- AI 07118/AI/NIAID NIH HHS/ -- AI 22553/AI/NIAID NIH HHS/ -- AI 47868/AI/NIAID NIH HHS/ -- AR 40312/AR/NIAMS NIH HHS/ -- New York, N.Y. -- Science. 2001 Feb 23;291(5508):1544-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Dermatology, Department of Microbiology and Immunology and Molecular Biology Institute, UCLA School of Medicine, Los Angeles, CA 90095, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11222859" target="_blank"〉PubMed〈/a〉

Keywords: Animals ; Bacterial Proteins/immunology ; Cell Line ; Cells, Cultured ; *Drosophila Proteins ; Humans ; Interferon-gamma/immunology/pharmacology ; Ligands ; Lipoproteins/*immunology ; Macrophage Activation ; Macrophages/immunology/metabolism/*microbiology ; Macrophages, Alveolar/immunology/metabolism/microbiology ; Macrophages, Peritoneal/immunology/metabolism/microbiology ; Membrane Glycoproteins/*metabolism ; Mice ; Monocytes/immunology/metabolism/*microbiology ; Mycobacterium tuberculosis/growth & development/*immunology ; Nitric Oxide/*metabolism ; Nitric Oxide Synthase/antagonists & inhibitors/metabolism ; Nitric Oxide Synthase Type II ; Receptors, Cell Surface/*metabolism ; Signal Transduction ; Toll-Like Receptor 2 ; Toll-Like Receptors ; Tumor Necrosis Factor-alpha/immunology/pharmacology

Print ISSN: 0036-8075

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Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics

Published by American Association for the Advancement of Science (AAAS)

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