NF kappa B is a potent mediator of specific gene expression in human monocytes and has been shown to play a role in transcription of the HIV-1 genome in promonocytic leukemias. There is little information available on the response of NF kappa B to cytokines in normal human monocytes. We have used a 32P-labeled oligonucleotide derived from human immunodeficiency virus (HIV-1) long terminal repeat, which contains a tandem repeat of the NF kappa B binding sequence, as a probe in a gel retardation assay to study this transcription factor. Using this assay, we have detected NF kappa B in extracts of nuclei from normal human monocytes. Treatment of normal monocytes with 12-0-tetradecanoyl phorbol-13-acetate (TPA) for 4-24 h caused the complete disappearance of NF kappa B from nuclear extracts of monocytes. A similar result was obtained with the mature monocytic leukemia cell line THP-1. The constitutive transcription factor SP1 was unaffected by addition of TPA. The disappearance of NF kappa B from the nucleus was concentration dependent between 10 and 50 ng/ml of phorbol ester. In THP-1 cells, TPA also induced a new, faster-migrating NF kappa B species not induced in monocytes. Protein kinase C inhibitor staurosporine, but not cyclic nucleotide-dependent protein kinase inhibitor HA-1004, also dramatically reduced constitutive levels of nuclear NF kappa B. Finally, TPA addition to monocytes infected with HIV-1 inhibited HIV-1 replication, as determined by reverse transcriptase assays, in a concentration-dependent manner. These results are in striking contrast to the increase in nuclear NF kappa B and HIV-1 replication induced by phorbol esters in promonocytic leukemia cells U937 and HL-60, and emphasize the importance of studying cytokine regulation of HIV-1 in normal monocytes.
INTRODUCTION To address the soaring cost of textbooks, higher education institutions have launched a number of strategies to promote the adoption of affordable and open educational resources (AOER). Although a few models for promoting and sustaining alternative and open educational resources (AOER) at higher education institutions can be found in the professional literature, additional examples are needed to assist the wide of range of universities and colleges in meeting this critical need. DESCRIPTION OF PROGRAM In this article, the authors describe Miami University’s ongoing efforts to reduce college textbook costs for students. These initiatives were instigated in some ways by the state legislature, but were also fueled by factual evidence regarding the impact textbook costs have on the student learning experience. The authors (university librarians and associate provost) provide a description of the institutional context and the challenges they faced in implementing AOER initiatives and chronicle the steps that their university has taken to address the challenge of rising costs of course materials. NEXT STEPS Next steps for growing the programs and recommendations for other institutions looking to develop similar initiatives are also explored.
In 2008, the Performing Arts Librarian and the Bierce LibraryCourse Reserves Manager at the Bierce Library at the University of Akron were charged by library administration to explore possible solutions for providing online media reserves in a manner compliant with U.S. copyright law. In collaboration with the University's Information Technology Services, they developed a system that would deliver streaming music files via Desire2Learn, the University's learning management system. This article explores the development of the service, policy creation, copyright compliance, the testing and implementation of the system, instructor training, and future possibilities.
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