ABSTRACT
RNA-binding proteins FBF-1 and FBF-2 (FBFs) are required for germline stem cell maintenance and the sperm/oocyte switch in Caenorhabditis elegans, although the mechanisms controlling FBF protein levels remain unknown. We identified an interaction between both FBFs and CSN-5), a component of the constitutive photomorphogenesis 9 (COP9) signalosome best known for its role in regulating protein degradation. Here, we find that the Mpr1/Pad1 N-terminal metalloprotease domain of CSN-5 interacts with the Pumilio and FBF RNA-binding domain of FBFs and the interaction is conserved for human homologs CSN5 and PUM1. The interaction between FBF-2 and CSN-5 can be detected in vivo by proximity ligation. csn-5 mutation results in the destabilization of FBF proteins, which may explain previously observed decrease in the numbers of germline stem and progenitor cells, and disruption of oogenesis. The loss of csn-5 does not decrease the levels of a related PUF protein PUF-3, and csn-5(lf) phenotype is not enhanced by fbf-1/2 knockdown, suggesting that the effect is specific to FBFs. The effect of csn-5 on oogenesis is largely independent of the COP9 signalosome and is cell autonomous. Surprisingly, the regulation of FBF protein levels involves a combination of COP9-dependent and COP9-independent mechanisms differentially affecting FBF-1 and FBF-2. This work supports a previously unappreciated role for CSN-5 in the stabilization of germline stem cell regulatory proteins FBF-1 and FBF-2.
Subject(s)
COP9 Signalosome Complex , Caenorhabditis elegans Proteins , Caenorhabditis elegans , Animals , Caenorhabditis elegans/cytology , Caenorhabditis elegans/genetics , Caenorhabditis elegans/metabolism , Caenorhabditis elegans Proteins/metabolism , Caenorhabditis elegans Proteins/genetics , COP9 Signalosome Complex/metabolism , COP9 Signalosome Complex/genetics , Germ Cells/metabolism , Oogenesis/genetics , Protein Stability , RNA-Binding Proteins/metabolism , RNA-Binding Proteins/genetics , Stem Cells/metabolism , Stem Cells/cytologyABSTRACT
BACKGROUND: Health care professionals may have limited exposure to home-based care. There is no published literature that has described the experiences and satisfaction of participation in patient home visits (PHV). OBJECTIVE: The objective of this article is to describe the characteristics of PHV, our approach, and evaluation by participants over a nine-year period. METHODS: We conducted a review of surveys completed by participants in PHV from 2005-2013. All participants anonymously completed the evaluation questionnaires at the end of PHVs. Different PHV assessment forms were used for the 2005-2010 and 2011-2013 time periods. RESULTS: A total of 34 PHVs were conducted with 106 patients and approximately 750 participants with a mean of 3 patients and 22 participants per PHV between 2005 and 2013. For 18 PHVs there are 317 surveys completed with 353 participants, making it a 90% response rate. Responding participants were physicians 125/543 (23%) and other professionals 418/543 (77%). In both time periods of 2005-2010 and 2011-2013 a survey with a 1 (completely agree) to 5 (completely disagree) scale was used. Agreeing that PHV was an effective teaching tool during 2005-2010 were 335/341 (98%); during 2011-2013, 191/202 (95%) agreed that PHV provided increased understanding and sharing of best practices in palliative care. CONCLUSIONS: PHV was perceived by participants as an effective way of providing interactive community education. A broad range of themes were addressed, and the participants reported high levels of learning in all domains of palliative care. There were no cases of patient or relative expression of distress as a result of PHV.
Subject(s)
Education, Nursing/organization & administration , Health Personnel/psychology , Home Care Services/organization & administration , House Calls , Inservice Training/organization & administration , Palliative Care/psychology , Patient Satisfaction , Adult , Aged , Aged, 80 and over , Attitude of Health Personnel , Female , Humans , Male , Middle Aged , Outcome Assessment, Health Care , Surveys and Questionnaires , TexasABSTRACT
One of the key obstacles to the complete integration of complementary and integrative medicine (CIM) into standard care in the United States is the lack of between-state and between-institution standards for credentialing. Also, a formal framework for the scope of CIM practitioner's practice is not available for assessing CIM integration into conventional patient care. Although many cancer centers do have some CIM programming under way, the scope of practice for CIM practitioners who may or may not fall within any formal licensing body and for non-CIM practitioners continues to vary among centers. This variation can result in inconsistent outcomes, difficulties in educating cancer patients about the role CIM can play in their cancer care, and a lack of true integration of CIM therapies into conventional treatment planning for the patient and those who care about and for them.