Helper T-cell migration and infiltration in central nervous system are critical events in multiple sclerosis (MS) and its animal model of experimental autoimmune encephalomyelitis (EAE). Our preliminary results show that mice deficient in transcription factor Bcl11b in mature T cells showed reduced EAE severity with delayed onset, caused by diminished helper T-cell infiltration in the CNS. Instead helper T cells accumulated in the gut, however without causing overt inflammatory bowel disease. We propose studies to decipher the molecular mechanisms underlying the diversion of the Bcl11b-deficient CD4+ T cells from the draining lymph nodes and central nervous system, whichwill open new avenues for multiple sclerosis therapies, and other autoimmune disorders. Additionally, these studies are of major importance because they will further our understanding of the network of transcription factors that control effector CD4+ T cell differentiation and functional plasticity. Specifically, our studies will reveal the relationship between the transcription factors Bcl11b, Rorgt and Gata3 in Th17 lineage differentiation, Bcl11b, Gata3 and Rorgt in Th2 lineage differentiation, and how these two alternate lineages influence each other to maintain the balance between specialization and plasticity.
An optimal helper T cell immune response requires two critical events: (1) efficient production of the appropriate cytokines, necessary to contain an offending organism by regulating other immune cells;(2) efficient migration of effector CD4+ T cells to the specific site of inflammation, and not to other sites. Deciphering the molecular mechanisms underlying these two processes is essential for the development of therapies able to elicit protective immune responses, while blocking those detrimental to the host, such as those in multiple sclerosis and other autoimmune diseases.
|Califano, D; Furuya, Y; Roberts, S et al. (2018) IFN-? increases susceptibility to influenza A infection through suppression of group II innate lymphoid cells. Mucosal Immunol 11:209-219|
|Lorentsen, Kyle J; Cho, Jonathan J; Luo, Xiaoping et al. (2018) Bcl11b is essential for licensing Th2 differentiation during helminth infection and allergic asthma. Nat Commun 9:1679|
|Bryant, Andrew J; Shenoy, Vinayak; Fu, Chunhua et al. (2018) Myeloid-derived Suppressor Cells Are Necessary for Development of Pulmonary Hypertension. Am J Respir Cell Mol Biol 58:170-180|
|Sharp, Stephen P; Avram, Dorina; Stain, Steven C et al. (2017) Local and systemic Th17 immune response associated with advanced stage colon cancer. J Surg Res 208:180-186|
|Periasamy, Sivakumar; Avram, Dorina; McCabe, Amanda et al. (2016) An Immature Myeloid/Myeloid-Suppressor Cell Response Associated with Necrotizing Inflammation Mediates Lethal Pulmonary Tularemia. PLoS Pathog 12:e1005517|
|Abboud, Georges; Stanfield, Jessica; Tahiliani, Vikas et al. (2016) Transcription Factor Bcl11b Controls Effector and Memory CD8 T cell Fate Decision and Function during Poxvirus Infection. Front Immunol 7:425|
|Uddin, Mohammad Nizam; Sultana, Dil Afroz; Lorentsen, Kyle J et al. (2016) Transcription factor Bcl11b sustains iNKT1 and iNKT2 cell programs, restricts iNKT17 cell program, and governs iNKT cell survival. Proc Natl Acad Sci U S A 113:7608-13|
|Califano, Danielle; Cho, Jonathan J; Uddin, Mohammad N et al. (2015) Transcription Factor Bcl11b Controls Identity and Function of Mature Type 2 Innate Lymphoid Cells. Immunity 43:354-68|
|Bucur, Octavian; Almasan, Alex; Zubarev, Roman et al. (2015) An updated h-index measures both the primary and total scientific output of a researcher. Discoveries (Craiova) 3:|
|Uddin, Mohammad N; Zhang, Yubin; Harton, Jonathan A et al. (2014) TNF-?-dependent hematopoiesis following Bcl11b deletion in T cells restricts metastatic melanoma. J Immunol 192:1946-53|
Showing the most recent 10 out of 21 publications