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Articles 1 - 4 of 4
Full-Text Articles in Molecular Biology
Design And Application Of Composite Rna Aptamers, Shengchun Wang
Design And Application Of Composite Rna Aptamers, Shengchun Wang
Legacy Theses & Dissertations (2009 - 2024)
aptamers are being developed as an essential tool in many fields of biological research. Their utility is not limited to being protein inhibitors; a lot of novel functions can be realized. However, in vivo application of RNA aptamers still faces many challenges. The aim of this dissertation is to design and apply composite aptamers in multiple expression and delivery systems to address some critical issues, such as correct folding, high level production, degradation by nucleases, excessive consumption of cellular resource and potential toxic effect.
Regulation Of The Aryl Hydrocarbon Receptor And The Signal Transducer And Activator Of Transcription 1 By Long-Term Estrogen Exposure In Breast Carcinoma Cells, Neal Englert
Legacy Theses & Dissertations (2009 - 2024)
The risk of developing breast cancer is known to be associated with a woman's lifetime exposure to estrogens, both endogenous and exogenous. Increased exposure to estrogens stimulates cellular proliferation, which is a widely accepted theory of estrogen receptor positive mammary carcinogenesis. The molecular mechanisms of gene expression regulation in response to long-term estrogen exposure (LTEE) of MCF-7 breast cancer cells were addressed in this study, with a focus on the aryl hydrocarbon receptor (AHR) and signal transducer and activator of transcription 1 (STAT1).
Distinct Functions Of The Fshr Ck2 Consensus Sequence And Ck2 Kinase Activity In Fsh Action, Kerri S. Kluetzman
Distinct Functions Of The Fshr Ck2 Consensus Sequence And Ck2 Kinase Activity In Fsh Action, Kerri S. Kluetzman
Legacy Theses & Dissertations (2009 - 2024)
Human reproduction in the female is a complex process requiring coordinated control of gonadotropic hormone signaling in a temporal, spatial and contextually defined manner. Paracrine and autocrine signaling between granulosa cells and oocytes of the developing ovarian follicle result in production of steroids, inhibin and growth factors that dictate maturation, ovulation or atresia. Follicular stimulating hormone (FSH) stimulation of the FSH receptor (FSHR), a G-protein coupled receptor (GPCR) is a key regulator of these processes. Recent developments in GPCR molecular and structural biology have helped define activation and signaling mechanisms that will aid in further defining the etiology of infertility …
The Role Of Trm9 In Stress Responses, Ashish Ravindra Patil
The Role Of Trm9 In Stress Responses, Ashish Ravindra Patil
Legacy Theses & Dissertations (2009 - 2024)
Cells need to respond appropriately to environmental changes in order to maintain homeostasis. The cellular response to an environmental stress is regulated at transcriptional, translational and post translational levels. The tRNA, which acts as an adaptor molecule between the mRNA and the protein, plays an important role in the translational regulation of cellular responses to stress and is one of the most heavily modified biomolecules. In Saccharomyces cerevisiae , the wobble uracil of the tRNA(3'-UCU-5') Arg, tRNA(3'-UUC-5') Glu and certain other specific tRNAs are modified to 5-methoxycarbonylmethyluridine (mcm5U) and 5-methoxycarbonylmethyl-2-thiouridine (mcm5s2U) residues by the tRNA methyltransferase 9 (Trm9). Modifications at …