|
|
||||||||
Department of Cell Signaling, DNAX Research Institute, Palo Alto, CA 94304
Signaling through the B cell Ag receptor (BCR) is a key determinant in the regulation of B cell physiology. Depending on additional factors, such as microenvironment and developmental stage, ligation of the BCR can trigger B lymphocyte activation, proliferation, or apoptosis. The regulatory mechanisms determining B cell apoptosis and survival are not known. Using the chicken B lymphoma cell line DT40 as a model system, we investigated the role of the serine/threonine kinase Akt in B cell activation. While parental DT40 cells undergo apoptosis in response to BCR cross-linking, cells overexpressing Akt show a greatly diminished apoptotic response. By contrast, limiting the activation of Akt, either by inhibiting phosphatidylinositol 3-kinase or by ectopic expression of the phospholipid phosphatase MMAC1, results in a significant increase in the percentage of apoptotic cells after BCR cross-linking. Using various DT40 knockout cell lines, we further demonstrate that the tyrosine kinase Syk is required for Akt activation and that Lyn tyrosine kinase inhibits Akt activation. Taken together, the data demonstrate that Akt plays an important role in B cell survival and that Akt is activated in a Syk-dependent pathway.
This article has been cited by other articles:
![]() |
T. Szado, V. Vanderheyden, J. B. Parys, H. De Smedt, K. Rietdorf, L. Kotelevets, E. Chastre, F. Khan, U. Landegren, O. Soderberg, et al. Phosphorylation of inositol 1,4,5-trisphosphate receptors by protein kinase B/Akt inhibits Ca2+ release and apoptosis PNAS, February 19, 2008; 105(7): 2427 - 2432. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. Adachi, S. Hanaka, T. Masuda, H. Yoshihara, H. Nagase, and K. Ohta Transduction of Phosphatase and Tensin Homolog Deleted on Chromosome 10 into Eosinophils Attenuates Survival, Chemotaxis, and Airway Inflammation J. Immunol., December 15, 2007; 179(12): 8105 - 8111. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. R. Dye, A. Palvanov, B. Guo, and T. L. Rothstein B Cell Receptor Cross-Talk: Exposure to Lipopolysaccharide Induces an Alternate Pathway for B Cell Receptor-Induced ERK Phosphorylation and NF-{kappa}B Activation J. Immunol., July 1, 2007; 179(1): 229 - 235. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Gururajan, T. Dasu, S. Shahidain, C. D. Jennings, D. A. Robertson, V. M. Rangnekar, and S. Bondada Spleen Tyrosine Kinase (Syk), a Novel Target of Curcumin, Is Required for B Lymphoma Growth J. Immunol., January 1, 2007; 178(1): 111 - 121. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. Leseux, S. M. Hamdi, T. al Saati, F. Capilla, C. Recher, G. Laurent, and C. Bezombes Syk-dependent mTOR activation in follicular lymphoma cells Blood, December 15, 2006; 108(13): 4156 - 4162. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. A. de la Fuente, L. Kumar, B. Lu, and R. S. Geha 3BP2 Deficiency Impairs the Response of B Cells, but Not T Cells, to Antigen Receptor Ligation. Mol. Cell. Biol., July 1, 2006; 26(14): 5214 - 5225. [Abstract] [Full Text] [PDF] |
||||
![]() |
Y. Xing, H. Igarashi, X. Wang, and N. Sakaguchi Protein phosphatase subunit G5PR is needed for inhibition of B cell receptor-induced apoptosis J. Exp. Med., September 6, 2005; 202(5): 707 - 719. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Petlickovski, L. Laurenti, X. Li, S. Marietti, P. Chiusolo, S. Sica, G. Leone, and D. G. Efremov Sustained signaling through the B-cell receptor induces Mcl-1 and promotes survival of chronic lymphocytic leukemia B cells Blood, June 15, 2005; 105(12): 4820 - 4827. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. L. Kienle, C. Korz, B. Hosch, A. Benner, D. Mertens, A. Habermann, A. Krober, U. Jager, P. Lichter, H. Dohner, et al. Evidence for Distinct Pathomechanisms in Genetic Subgroups of Chronic Lymphocytic Leukemia Revealed by Quantitative Expression Analysis of Cell Cycle, Activation, and Apoptosis-Associated Genes J. Clin. Oncol., June 1, 2005; 23(16): 3780 - 3792. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. Mizuno and T. L. Rothstein B Cell Receptor (BCR) Cross-Talk: CD40 Engagement Creates an Alternate Pathway for BCR Signaling That Activates I{kappa}B Kinase/I{kappa}B{alpha}/NF-{kappa}B without the Need for PI3K and Phospholipase C{gamma} J. Immunol., May 15, 2005; 174(10): 6062 - 6070. [Abstract] [Full Text] [PDF] |
||||
![]() |
O. Prakash, O. R. Swamy, X. Peng, Z.-Y. Tang, L. Li, J. E. Larson, J. C. Cohen, J. Gill, G. Farr, S. Wang, et al. Activation of Src kinase Lyn by the Kaposi sarcoma-associated herpesvirus K1 protein: implications for lymphomagenesis Blood, May 15, 2005; 105(10): 3987 - 3994. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. Guo and T. L. Rothstein B Cell Receptor (BCR) Cross-Talk: IL-4 Creates an Alternate Pathway for BCR-Induced ERK Activation That Is Phosphatidylinositol 3-Kinase Independent J. Immunol., May 1, 2005; 174(9): 5375 - 5381. [Abstract] [Full Text] [PDF] |
||||
![]() |
X. Lu, H. Nechushtan, F. Ding, M. F. Rosado, R. Singal, A. A. Alizadeh, and I. S. Lossos Distinct IL-4-induced gene expression, proliferation, and intracellular signaling in germinal center B-cell-like and activated B-cell-like diffuse large-cell lymphomas Blood, April 1, 2005; 105(7): 2924 - 2932. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. R. Herrin, A. L. Groeger, and L. B. Justement The Adaptor Protein HSH2 Attenuates Apoptosis in Response to Ligation of the B Cell Antigen Receptor Complex on the B Lymphoma Cell Line, WEHI-231 J. Biol. Chem., February 4, 2005; 280(5): 3507 - 3515. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. D. Moon, C. B. Post, D. L. Durden, Q. Zhou, P. De, M. L. Harrison, and R. L. Geahlen Molecular Basis for a Direct Interaction between the Syk Protein-tyrosine Kinase and Phosphoinositide 3-Kinase J. Biol. Chem., January 14, 2005; 280(2): 1543 - 1551. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Moroni, V. Soldatenkov, L. Zhang, Y. Zhang, G. Stoica, E. Gehan, B. Rashidi, B. Singh, M. Ozdemirli, and S. C. Mueller Progressive Loss of Syk and Abnormal Proliferation in Breast Cancer Cells Cancer Res., October 15, 2004; 64(20): 7346 - 7354. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Allam, H. Niiro, E. A. Clark, and A. J. Marshall The Adaptor Protein Bam32 Regulates Rac1 Activation and Actin Remodeling through a Phosphorylation-dependent Mechanism J. Biol. Chem., September 17, 2004; 279(38): 39775 - 39782. [Abstract] [Full Text] [PDF] |
||||
![]() |
E. Rosati, R. Sabatini, E. Ayroldi, A. Tabilio, A. Bartoli, S. Bruscoli, C. Simoncelli, R. Rossi, and P. Marconi Apoptosis of human primary B lymphocytes is inhibited by N-acetyl-L-cysteine J. Leukoc. Biol., July 1, 2004; 76(1): 152 - 161. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. J. Piatelli, C. Wardle, J. Blois, C. Doughty, B. R. Schram, T. L. Rothstein, and T. C. Chiles Phosphatidylinositol 3-Kinase-Dependent Mitogen-Activated Protein/Extracellular Signal-Regulated Kinase Kinase 1/2 and NF-{kappa}B Signaling Pathways Are Required for B Cell Antigen Receptor-Mediated Cyclin D2 Induction in Mature B Cells J. Immunol., March 1, 2004; 172(5): 2753 - 2762. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. P. Mone, P. Huang, H. Pelicano, C. M. Cheney, J. M. Green, J. Y. Tso, A. J. Johnson, S. Jefferson, T. S. Lin, and J. C. Byrd Hu1D10 induces apoptosis concurrent with activation of the AKT survival pathway in human chronic lymphocytic leukemia cells Blood, March 1, 2004; 103(5): 1846 - 1854. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. C. Tomlinson and B. Damania The K1 Protein of Kaposi's Sarcoma-Associated Herpesvirus Activates the Akt Signaling Pathway J. Virol., February 15, 2004; 78(4): 1918 - 1927. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Spaargaren, E. A. Beuling, M. L. Rurup, H. P. Meijer, M. D. Klok, S. Middendorp, R. W. Hendriks, and S. T. Pals The B Cell Antigen Receptor Controls Integrin Activity through Btk and PLC{gamma}2 J. Exp. Med., November 17, 2003; 198(10): 1539 - 1550. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. Wen, Y. Chen, L. Xue, J. Schuman, S. Yang, S. W. Morris, and D. Wang Phospholipase C{gamma}2 Provides Survival Signals via Bcl2 and A1 in Different Subpopulations of B Cells J. Biol. Chem., October 31, 2003; 278(44): 43654 - 43662. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. L. Christian, R. L. Lee, S. J. McLeod, A. E. Burgess, A. H. Y. Li, M. Dang-Lawson, K. B. L. Lin, and M. R. Gold Activation of the Rap GTPases in B Lymphocytes Modulates B Cell Antigen Receptor-induced Activation of Akt but Has No Effect on MAPK Activation J. Biol. Chem., October 24, 2003; 278(43): 41756 - 41767. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. R. Whyburn, K. E. Halcomb, C. M. Contreras, C. A. Lowell, O. N. Witte, and A. B. Satterthwaite Reduced Dosage of Bruton's Tyrosine Kinase Uncouples B Cell Hyperresponsiveness from Autoimmunity in lyn-/- Mice J. Immunol., August 15, 2003; 171(4): 1850 - 1858. [Abstract] [Full Text] [PDF] |
||||
![]() |
X. Liu, A. Mayeda, M. Tao, and Z.-M. Zheng Exonic Splicing Enhancer-Dependent Selection of the Bovine Papillomavirus Type 1 Nucleotide 3225 3' Splice Site Can Be Rescued in a Cell Lacking Splicing Factor ASF/SF2 through Activation of the Phosphatidylinositol 3-Kinase/Akt Pathway J. Virol., February 1, 2003; 77(3): 2105 - 2115. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. E. Muscarella and S. E. Bloom Cross-linking of Surface IgM in the Burkitt's Lymphoma Cell Line ST486 Provides Protection against Arsenite- and Stress-induced Apoptosis That Is Mediated by ERK and Phosphoinositide 3-Kinase Signaling Pathways J. Biol. Chem., January 31, 2003; 278(6): 4358 - 4367. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. Jiang, B. Zhong, C. Ritchey, D. L. Gilvary, E. Hong-Geller, S. Wei, and J. Y. Djeu Regulation of Akt-dependent cell survival by Syk and Rac Blood, January 1, 2003; 101(1): 236 - 244. [Abstract] [Full Text] [PDF] |
||||
![]() |
S.-C. Wong, W.-K. Chew, J. E.-L. Tan, A. J. Melendez, F. Francis, and K.-P. Lam Peritoneal CD5+ B-1 Cells Have Signaling Properties Similar to Tolerant B Cells J. Biol. Chem., August 16, 2002; 277(34): 30707 - 30715. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. L. Christian, P. V. Sims, and M. R. Gold The B Cell Antigen Receptor Regulates the Transcriptional Activator {beta}-Catenin Via Protein Kinase C-Mediated Inhibition of Glycogen Synthase Kinase-3 J. Immunol., July 15, 2002; 169(2): 758 - 769. [Abstract] [Full Text] [PDF] |
||||
![]() |
H. Niiro, A. Maeda, T. Kurosaki, and E. A. Clark The B Lymphocyte Adaptor Molecule of 32 kD (Bam32) Regulates B Cell Antigen Receptor Signaling and Cell Survival J. Exp. Med., January 7, 2002; 195(1): 143 - 149. [Abstract] [Full Text] [PDF] |
||||
![]() |
H. Gary-Gouy, J. Harriague, A. Dalloul, E. Donnadieu, and G. Bismuth CD5-Negative Regulation of B Cell Receptor Signaling Pathways Originates from Tyrosine Residue Y429 Outside an Immunoreceptor Tyrosine-Based Inhibitory Motif J. Immunol., January 1, 2002; 168(1): 232 - 239. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Bernal, R. D. Pastore, Z. Asgary, S. A. Keller, E. Cesarman, H.-C. Liou, and E. J. Schattner Survival of leukemic B cells promoted by engagement of the antigen receptor Blood, November 15, 2001; 98(10): 3050 - 3057. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. L. Woods and Y. Shimizu Signaling networks regulating {beta}1 integrin-mediated adhesion of T lymphocytes to extracellular matrix J. Leukoc. Biol., June 1, 2001; 69(6): 874 - 880. [Abstract] [Full Text] [PDF] |
||||
![]() |
H. Bone and N. A. Williams Antigen-receptor cross-linking and lipopolysaccharide trigger distinct phosphoinositide 3-kinase-dependent pathways to NF-{{kappa}}B activation in primary B cells Int. Immunol., June 1, 2001; 13(6): 807 - 816. [Abstract] [Full Text] [PDF] |
||||
![]() |
S.-j. Seo, J. Buckler, and J. Erikson Novel Roles for Lyn in B Cell Migration and Lipopolysaccharide Responsiveness Revealed Using Anti-Double-Stranded DNA Ig Transgenic Mice J. Immunol., March 15, 2001; 166(6): 3710 - 3716. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. J. Ingham, L. Santos, M. Dang-Lawson, M. Holgado-Madruga, P. Dudek, C. R. Maroun, A. J. Wong, L. Matsuuchi, and M. R. Gold The Gab1 Docking Protein Links the B Cell Antigen Receptor to the Phosphatidylinositol 3-Kinase/Akt Signaling Pathway and to the SHP2 Tyrosine Phosphatase J. Biol. Chem., April 6, 2001; 276(15): 12257 - 12265. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Fujimoto, J. C. Poe, M. Hasegawa, and T. F. Tedder CD19 Amplification of B Lymphocyte Ca2+ Responses. A ROLE FOR Lyn SEQUESTRATION IN EXTINGUISHING NEGATIVE REGULATION J. Biol. Chem., November 21, 2001; 276(48): 44820 - 44827. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |