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Articles 1 - 6 of 6
Full-Text Articles in Genetics and Genomics
Transcriptional Control Of Dendritic Cell Function And Development, David Alexander Anderson Iii
Transcriptional Control Of Dendritic Cell Function And Development, David Alexander Anderson Iii
Arts & Sciences Electronic Theses and Dissertations
Dendritic cells (DCs) are innate immune cells of the myeloid lineage that are specialized at pathogen recognition, cytokine production, and antigen presentation. Their functions and developmental pathways are largely conserved between mice and humans and mice. The DC lineage is composed of two major subsets, known as plasmacytoid DCs (pDCs) and classical DCs (cDCs). Research conducted to date suggests that the function of pDCs, limited to viral antigen recognition and type I interferon production, can be compensated by other immune cell lineages. On the other hand, there is a consensus that diversified subsets cDCs in mice and humans are essential …
Dendritic Cell Development And Function, Vivek Durai
Dendritic Cell Development And Function, Vivek Durai
Arts & Sciences Electronic Theses and Dissertations
Dendritic cells (DCs) are a group of immune cells that include both classical dendritic cells (cDCs) and plasmacytoid dendritic cells (pDCs). cDCs are further comprised of two distinct subsets, cDC1s and cDC2s, which play critical roles in the initiation of innate and adaptive immune responses. Understanding how these lineages develop and function is therefore paramount. All DCs require the receptor tyrosine kinase Flt3 and its ligand Flt3L for their development, but the loss of Flt3L in mice leads to a more severe DC deficiency than does the loss of Flt3. This has led to speculation that Flt3L can bind to …
Sequence Analysis Methods For The Design Of Cancer Vaccines That Target Tumor-Specific Mutant Antigens (Neoantigens), Jasreet Hundal
Sequence Analysis Methods For The Design Of Cancer Vaccines That Target Tumor-Specific Mutant Antigens (Neoantigens), Jasreet Hundal
Arts & Sciences Electronic Theses and Dissertations
The human adaptive immune system is programmed to distinguish between self and non-self proteins and if trained to recognize markers unique to a cancer, it may be possible to stimulate the selective destruction of cancer cells. Therapeutic cancer vaccines aim to boost the immune system by selectively increasing the population of T cells specifically targeted to the tumor-unique antigens, thereby initiating cancer cell death.. In the past, this approach has primarily focused on targeted selection of ‘shared’ tumor antigens, found across many patients. The advent of massively parallel sequencing and specialized analytical approaches has enabled more efficient characterization of tumor-specific …
Transcriptional Signatures Of Host Susceptibility In Urinary Tract Infections, Lu Yu
Transcriptional Signatures Of Host Susceptibility In Urinary Tract Infections, Lu Yu
Arts & Sciences Electronic Theses and Dissertations
Urinary tract infections (UTI) caused by uropathogenic Escherichia coli (UPEC) are common and highly recurrent. Two important non-behavioral risk factors for UTI in women are genetics and history of two or more episodes of previous UTI. However, specific mechanisms of how these two factors modulate host susceptibility to UTI remain unclear. Concordantly, inbred mice of various genotypes and with different infection histories exhibit different susceptibilities to acute and chronic bladder infection (cystitis), which recapitulates a range of clinical UTI outcomes observed in women. Early host-pathogen interactions have been shown to determine UTI outcomes in mouse models. Here, we used two …
Epigenetic Activation Of The Mouse T Cell Receptor Beta Recombination Center, Jiangyang Zhao
Epigenetic Activation Of The Mouse T Cell Receptor Beta Recombination Center, Jiangyang Zhao
Arts & Sciences Electronic Theses and Dissertations
Lymphocytes are the work horses of adaptive immunity. Compared to the B lymphocyte lineage, early stage progenitors of T lymphocytes maintain considerable potential for differentiation into other hematopoietic lineages. T lineage commitment requires the continuous coordination of transcription factors (TFs) by Notch1 signaling after multi-potent progenitors (MPPs) migrate to thymus. One of the first hall marks of T lineage commitment is expression of the T cell receptor β (TCRβ), which is encoded by the Tcrb locus following its assembly by V(D)J recombination, a somatic shuffling of the genome that joins one V, one D, and one J gene segment. Tcrb …
Granulocyte-Colony Stimulating Factor Reprograms The Bone Marrow Microenvironment To Suppress B Lymphopoiesis, Ryan Brent Day
Granulocyte-Colony Stimulating Factor Reprograms The Bone Marrow Microenvironment To Suppress B Lymphopoiesis, Ryan Brent Day
Arts & Sciences Electronic Theses and Dissertations
The production of hematopoietic cells in the bone marrow is tightly and dynamically regulated in response to environmental stimuli. In response to infection, the bone marrow increases granulopoiesis at the expense of lymphopoiesis. The mechanisms mediating this shift are poorly understood. We show that treatment with granulocyte-colony stimulating factor (G-CSF), which is often induced during infection, results in marked decline of B lymphocytes at multiple stages of bone marrow B cell development. Transgenic mouse models show that G-CSF acts in a non-cell intrinsic fashion through cells of the monocyte-macrophage lineage to suppress B lymphopoiesis by downregulating important B trophic factors …