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Translational Medical Research Commons

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Full-Text Articles in Translational Medical Research

Ap-1 And Nf-Κb Synergize To Transcriptionally Activate Latent Hiv Upon T-Cell Receptor Activation., Joseph Hokello, Adhikarimayum Lakhikumar Sharma, Mudit Tyagi Mar 2021

Ap-1 And Nf-Κb Synergize To Transcriptionally Activate Latent Hiv Upon T-Cell Receptor Activation., Joseph Hokello, Adhikarimayum Lakhikumar Sharma, Mudit Tyagi

Center for Translational Medicine Faculty Papers

Latent HIV-1 proviruses are capable of reactivating productive lytic infection, but the precise molecular mechanisms underlying emergence from latency are poorly understood. In this study, we determined the contribution of the transcription factors NF-κB, NFAT, and AP-1 in the reactivation of latent HIV following T-cell receptor (TCR) activation using Jurkat T-cell clones harboring single latent HIV proviruses. Our findings demonstrate that during reactivation from latency, NF-κB enhances HIV transcription while NFAT inhibits it by competing with NF-κB for overlapping binding sites on the HIV long terminal repeat (LTR). We have also demonstrated for the first time the molecular contribution of …


Modeling The Adaptive Immune Response To Mutation-Generated Antigens, Rory J. Geyer May 2014

Modeling The Adaptive Immune Response To Mutation-Generated Antigens, Rory J. Geyer

University Scholar Projects

Somatic mutations may drive tumorigenesis or lead to new, immunogenic epitopes (neoantigens). The immune system is thought to represses neoplastic growths through the recognition of neoantigens presented only by tumor cells. To study mutations as well as the immune response to mutation-generated antigens, we have created a conditional knockin mouse line with a gene encoding, 5’ to 3’, yellow fluorescent protein (YFP), ovalbumin (which is processed to the immunologically recognizable peptide, SIINFEKL), and cyan fluorescent protein (CFP), or, YFP-ovalbumin-CFP. A frame shift mutation has been created at the 5’ end of the ovalbumin gene, hence YFP should always be expressed, …