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Full-Text Articles in Neoplasms

Comparative Perceived Breast Cancer Risk Before And After An Intervention, Constance F. Welebir Aug 2002

Comparative Perceived Breast Cancer Risk Before And After An Intervention, Constance F. Welebir

Loma Linda University Electronic Theses, Dissertations & Projects

Breast cancer screening has the potential of early detection, more effective treatment, and possible arrest of certain breast cancers, yet many women do not adhere to screening guidelines. With research showing that people use social comparison while making risk judgments, often holding optimistically biased beliefs about their health, women who maintain an optimism bias about their breast cancer risk may not practice routine breast cancer surveillance. Therefore, effective interventions designed to inform women of their breast cancer risks and to encourage adherence to breast cancer screening guidelines are necessary. This study investigated the role that social comparison plays in risk …


Role Of Disulphide Bond Formation In Folding, Secretion, And Assembly Of Human Chorionic Gonadotropin Subunits., Elliott Bedows, Ryan J. Darling, Jason A. Wilken, Simon Sherman Apr 2002

Role Of Disulphide Bond Formation In Folding, Secretion, And Assembly Of Human Chorionic Gonadotropin Subunits., Elliott Bedows, Ryan J. Darling, Jason A. Wilken, Simon Sherman

Journal Articles: Eppley Institute

Ability of a glycoprotein hormone to fold and assemble correctly is an essential requirement for the attainment of its biological activity . Cells have a quality control system to assure that when proteins of the endoplasmic reticulum mi sfold or fail to assemble correctly they do not exit the cell. But human chorionic gonadotropin (hCG) is an exception to this rule as is illustrated by the following observations. First, both hCG subunits are secreted efficiently as unassembled monomers. Second, some mis(un)folded forms of hCG-β can be efficiently secreted from cells that do not facilitate the secretion of other misfolded proteins. …


Ube1l Is A Retinoid Target That Triggers Pml/Rarα Degradation And Apoptosis In Acute Promyelocytic Leukemia, Sutisak Kitareewan, Ian Pitha-Rowe, David Sekula, Christopher H. Lowrey, Michael J. Nemeth, Todd R. Golub, Sarah J. Freemantle, Ethan Dmitrovsky Mar 2002

Ube1l Is A Retinoid Target That Triggers Pml/Rarα Degradation And Apoptosis In Acute Promyelocytic Leukemia, Sutisak Kitareewan, Ian Pitha-Rowe, David Sekula, Christopher H. Lowrey, Michael J. Nemeth, Todd R. Golub, Sarah J. Freemantle, Ethan Dmitrovsky

Dartmouth Scholarship

All-trans-retinoic acid (RA) treatment induces remissions in acute promyelocytic leukemia (APL) cases expressing the t(15;17) product, promyelocytic leukemia (PML)/RA receptor α (RARα). Microarray analyses previously revealed induction of UBE1L (ubiquitin-activating enzyme E1-like) after RA treatment of NB4 APL cells. We report here that this occurs within 3 h in RA-sensitive but not RA-resistant APL cells, implicating UBE1L as a direct retinoid target. A 1.3-kb fragment of the UBE1L promoter was capable of mediating transcriptional response to RA in a retinoid receptor-selective manner. PML/RARα, a repressor of RA target genes, abolished this UBE1L promoter activity. A hallmark of …


Differential Synthesis Of Beta-Tubulin Isotypes In Gerbil Nasal Epithelia, Karen Woo, Heather Jensen Smith, Richard F. Ludueña, Richard Hallworth Jan 2002

Differential Synthesis Of Beta-Tubulin Isotypes In Gerbil Nasal Epithelia, Karen Woo, Heather Jensen Smith, Richard F. Ludueña, Richard Hallworth

Journal Articles: Eppley Institute

Compartmentalization of beta-tubulin isotypes within cells according to function was examined in gerbil olfactory and respiratory epithelia by using specific antibodies to four beta-tubulin isotypes (beta(I), beta(II), beta(III), and beta(IV)). Isotype synthesis was cell-type-specific, but the localization of the isotypes was not compartmentalized. All four isotypes were found in the cilia, dendrites, somata, and axons of olfactory neurons. Only two isotypes (beta(I) and beta(IV)) were present in the cilia of nasal respiratory epithelial cells. The beta(IV) isotype, thought to be an essential component of cilia, was present in olfactory neurons and respiratory epithelial cells, which are ciliated, but was not …