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FRIDAY—PM FRIDAY AFTERNOON MAY 4 F 1. BACK TO SCHOOL: A REVIEW OF FOUR FAST- 3:30 Defective Microglia-Neuronal Communication R MOVING FIELDS during Demyelinating Disease Correlates with I Altered Neurogenesis. A. Cardona, K. Church, Committee-Sponsored Session A. Mendiola, S. Cardona, D. Vanegas, C. Garcia, Sponsored by the AAI Program Committee D. Luera, S. Lira, E. Kokovay and C.-H. A. Lin. Univ. of Texas, San Antonio, Univ. of California, San FRI. 2:30 PM—ROOM 17AB Francisco, Icahn Sch. of Med., Mount Sinai and CHAIRS: E.M. Oltz, J.A. Punt Univ. of Texas Hlth. Sci. Ctr., San Antonio. (43.5) 3:45 T cell restricted TGF-βR3 (betaglycan) null mice This workshop intends to bring a broad audience up-to- develop exacerbated experimental autoimmune date on a few emerging or rapidly changing fields or areas encephalomyelitis (EAE) associated with of technological innovation. Expert lecturers will provide expanded generation of Th1 cells. S. Duesman, an overview of each trending topic with an emphasis on C. Ren, R. Chellappan, C. Sestero, R. Kesterson, communicating big picture concepts. P. De Sarno, G. Soldevila and C. Raman. Univ. of Alabama, Birmingham, Univ. of Montevallo and Natl. 2:30 Update on immunometabolism and how to fuel Autonomous Univ. of Mexico, Mexico. (43.6) immunity. J. Rathmell. Vanderbilt Univ. 4:00 IL7R regulates fetal tissue resident macrophage 3:00 Cell death in the immune system. D. Hildeman. development. G. Leung, T. McCann, C. Forsberg, Cincinnati Children’s Hosp. Med. Ctr. Anna Beaudin. Univ. of California, Merced and 3:30 Chromatin conformation and epigenetics of the antigen Univ. of California Santa Cruz. (43.7) receptor loci shape emerging immune repertoires. 4:15 IL-7 promotes naïve T cell motility and regulates T A. Feeney. Scripps Res. Inst. cell-dendritic cell contacts in the lymph node via 4:00 Defining essential features of epitope-specific T cell JAK/STAT signaling. J. R. Byrum, David Torres, receptor repertoires responding to pathogens and P. Mrass, S. Oruganti and J. Cannon. Univ. of tumors. P. Thomas. St. Jude Children’s Res. Hosp. New Mexico Sch. of Med. and Northern New Mexico Col. (43.8) 2. INFLUENCE OF CYTOKINES AND CHEMOKINES ON REGIONAL IMMUNITY 3. T LYMPHOCYTES AND TREGS: ACTIVATION, Block Symposium DIFFERENTIATION, AND TOLERANCE FRI. 2:30 PM—ROOM 16AB Block Symposium CHAIRS: G. Trevejo-Nunez, C. Raman FRI. 2:30 PM—ROOM 10AB 2:30 Glucocorticoids inhibit group 3 innate lymphocyte IL-22 CHAIRS: T. Burt, N. Singh production. L. Zenewicz, S. Seshadri and R. Pope. 2:30 Neurokinin 1 receptor-signaling sustains T-cell Univ. of Oklahoma Hlth. Sci. Ctr. (43.1) survival during thymus development and following 2:45 More than a decoy receptor? Interleukin 22 Binding T-cell activation in secondary lymphoid organs. Protein (IL-22BP) in bacterial pneumonia. G. Trevejo- A. Larregina, T. Sumpter, D. Rojas-Canales, Nunez, P. Castillo, K. Chen and J. Kolls. Univ. of O. Tkacheva, W. Shufesky, L. Falo and A. Morelli. Pittsburgh and Tulane Univ. Sch. of Med. (43.2) Univ. of Pittsburgh Sch. of Med. (47.15) 3:00 Exacerbation of intestinal IL-17 activity by mycoplasma 2:45 Subset-specific neurotransmitter receptor expression superantigen leads to increased HMGB1 and tunes T cell activation. K. Rosenberg and N. Singh. chemokines in the joints of autoimmune arthritis Univ. of Maryland, Baltimore. (47.22) mice. H-H. Mu and J. Tran. Univ. of Utah Sch. of Med. (43.3) 3:15 The damage signal IL-33 facilitates focal immune responses to Toxoplasma gondii in the brain. K. Still, J. Thompson, S. Batista, N. Hayes and T. Harris. Univ. of Virginia Sch. of Med. (43.4) 1 FRIDAY—PM 3:00 Glutamate receptors provide costimulatory signals 3:30 Immune regulation by glucocorticoids can be linked to improve T cell immune response. A. Shanker, to cell-lineage-specific transcriptional responses. M.T. de Aquino, T. Hodo and R. Uzhachenko. L. Franco, M. Gadkari, K. Howe, J. Sun, P. Kumar, Meharry Med. Col. Sch. of Med. and Vanderbilt Univ. L. Kardava, A. Biancotto, Z. Hu, I. Fraser, S. Moir, Sch. of Med. (47.24) R. Germain and J. Tsang. NIAID, NIH and NIH Clin. 3:15 Activation induced decrease and recovery of TCR Ctr. Pharmacy. (48.7) 2D affinity and bond lifetime. R. Andargachew, 3:45 Uracil DNA Glycosylase of Gammaherpesvirus alters E. Kolawole and B. Evavold. Emory Univ. and Univ. somatic hypermutation through error-free DNA of Utah Sch. of Med. (47.17) repair. Y. Mu, Q. Dong, M. Zelazowska, Z. Chen, 3:30 Tregs orchestrate antigen specific suppression via J. Plummer, L. Krug and K. McBride. The Univ. of stripping cognate peptide-MHCII from the DC Texas MD Anderson Cancer Ctr. and Stony Brook surface. B. Akkaya, M. Akkaya, Y. Oya, J. A. Souz, Univ. (48.12) A. Holstein, O. Kamenyeva, J. Kabat, D. Dorward, 4:00 Role of E3 ubiquitin ligase GRAIL in B cell activation D. Glass and E. Shevach. NIAID, NIH. (47.2) and tolerance. R. Nurieva, S. Bieerkehazhi, 3:45 Fetal naive T cells are primed for preferential T. Waseem, O. Hoang, A. Sahoo, A. Alekseev regulatory T cell differentiation through increased and E. Galkina. MD Anderson Cancer Ctr. and chromatin accessibility and expression at the Helios Eastern Virginia Med. Sch. (48.14) locus. M. Ng and T. Burt. Univ. of California, San 4:15 IRF4 regulates the rate of cell cycle during B Francisco. (47.12) cell differentiation. D. Patterson, C. Scharer 4:00 Transcriptional profiling of pathogen-specific CD4 and J. Boss. Emory Univ. Sch. of Med. (48.16) T cells reveals key events that regulate Th17 cell priming and differentiation. Y. Gao, K. Deason, 5. REGULATORY MECHANISMS OF INNATE A. Jain, I. Dozmorov, E. Wakeland and C. Pasare. IMMUNE RESPONSES Univ. of Texas Southwestern Med. Ctr. (47.7) 4:15 GDF15 and BMP4 co-regulate stress erythropoiesis Block Symposium and Treg induction to maintain erythroid homeostasis FRI. 2:30 PM—ROOM 18AB and resolve inflammation during infection. J. Fraser, A. Dey, S. Nettleford, L. Zhao, P. Hankey-Giblin, CHAIRS: M. Colonna, E. Amiel K. Prabhu, N. Xiong and R. Paulson. Pennsylvania 2:30 Regulatory circuits governing identity and function of State Univ. (47.14) human type 1 ILCs. P. Collins, M. Cella, S. Porter, M. Mccullen, M. Colonna and E. Oltz. Washington 4. B CELL BIOLOGY Univ. Sch. of Med. in St. Louis and Washington Univ. Block Symposium in St. Louis. (170.2) 2:45 Identification of Trim29 as a Key checkpoint inhibitor FRI. 2:30 PM—ROOM 19AB of natural killer cell functions. Y. Dou, J. Xing, CHAIRS: L-A. Garrett-Sinha, A. Satterthwaite X. Li and Z. Zhang. Houston Methodist Res. Inst.. (170.24) 2:30 NFAT1 nuclear translocation is impaired in murine 3:00 Ly49H-dependent IFNγ protein production by NK newborn B lymphocytes. J. Sakai, A. Coleman cells requires cytokine signaling that induces IFNγ and M. Akkoyunlu. CBER, FDA. (48.1) mRNA transcription. S. Piersma, M. Pak-Wittel 2:45 Differential regulation of B cell responses to acute and and W. Yokoyama. Washington Univ. in St. Louis. chronic infection by histone-modifying complexes. (170.9) K. Good-Jacobson, A. Di Pietro, C. Yiannis 3:15 Commensal Bacteria Suppress Vitamin A Metabolism and R. Farighi. Monash Univ., Australia. (48.2) in the Intestinal Epithelium to Modulate IL-22 Activity 3:00 IRF4 and IRF5 transcription factors exhibit shared in the Gut. M. Grizotte-Lake and S. Vaishnava. and distinct roles in regulating human B cell Brown Univ. (170.21) differentiation and function. T. Shih, S. De, B. Zhong 3:30 Transient Receptor Potential Ankyrin 1 Mediates and B. Barnes. Feinstein Inst. for Med. Res. and the Afferent Arm of the Inflammatory Reflex. Rutgers Univ., Pfizer, Inc. (48.3) H. Silverman, M. Addorisio, T. Tsaava, A. Stiegler, 3:15 AKT targets CSK to regulate proximal BCR signaling A. Kressel, C. Chin, M. Gunasekaran, V. Pavlov, in germinal center B cells. W. Luo, W. Hawse, S. Chavan and K. Tracey. Feinstein Inst. for Med. N. Trivedi, F. Weisel and M. Shlomchik. Univ. of Res. and Zucker Sch. of Med. at Hofstra/Northwell. Pittsburgh. (48.4) (170.27) 2 FRIDAY—PM 3:45 Sympathetic neural control of inflammation by ADRB2- 3:45 In situ vaccination improves efficacy of PD-1 blockade mediated IL-10 secretion. D. Agac, L. Estrada in unresponsive lymphoma tumors through induction and J. Farrar. Univ. of Texas Southwestern Med. of a highly efficient cross-presenting dendritic Ctr. and St. Jude Children’s Res. Hosp. (170.22) cell subset expressing TLR3. L. Hammerich, 4:00 Nitric oxide dictates the reprogramming of carbon flux M. Dhainaut, T. Keler, T. Davis, A. Salazar, during M1 macrophage polarization. E. Palmieri, B. Brown and J. Brody. Icahn Sch. of Med., Mount W. Baseler, L. Davies, M. Gonzalez-Cotto, Sinai, Celldex Therapeut. and Oncovir, Inc. (56.17) F 4:00 Systemic dysregulation of antigen cross-presenting B. Ghesquiere, T. Fan, A. Lane, D. Wink R and D. McVicar. NCI, NIH, Univ. of Leuven, Belgium dendritic cells occurs early in preinvasive pancreatic and Univ. of Kentucky. (170.18) neoplasia and is reversed by CD40 agonism. J. Lin I 4:15 The Role of Glycogen Metabolism in Glycolytic and R. Vonderheide. Perelman Sch. of Med.,Univ. Reprogramming Required for Dendritic Cell Immune of Pennsylvania. (56.18) Responses. E. Amiel and P. Thwe. Univ. of Vermont. 4:15 Cell death-inducing reagents activate cancer (170.6) immune surveillance via inducing Interleukin-17D in macrophages. R. Seelige and J. Bui. Univ. of 6. MACROPHAGES AND MYELOID AND California, San Diego. (56.23) DENDRITIC CELLS IN TUMOR IMMUNITY AND IMMUNOTHERAPY 7.