84 research outputs found
Negotiating: Experiences of community nurses when contracting with clients
A community nurse is required to have excellent interpersonal, teaching, collaborative and clinical skills in order to develop effective individualised client care contracts. Using a descriptive qualitative design data was collected from two focus groups of fourteen community nurses to explore the issues surrounding negotiating and contracting client care contracts from the perspective of community nurses. Thematic analysis revealed three themes: ‘assessment of needs’, ‘education towards enablement’, and ‘negotiation’. ‘Assessment of needs’ identified that community nurses assess both the client’s requirements for health care as well as the ability of the nurse to provide that care. ‘Education towards enablement’ described that education of the client is a common strategy used by community nurses to establish realistic goals of health care as part of developing an ongoing care plan. The final theme, ‘negotiation’, involved an informed agreement between the client and the community nurse which forms the origin of the care contract that will direct the partnership between the client and the nurse. Of importance for community nurses is that development of successful person-centred care contracts requires skillful negotiation of care that strikes the balance between the needs of the client and the ability of the nurse to meet those needs
Knowledge coproduction & urban governance:Collaborative research in institutionally embedded practices
Op basis van casestudy onderzoek binnen het Nicis Kennis voor Krachtige Steden programma (2007-2014) behandelt dit proefschrift de vraag hoe onderzoekers en ambtenaren in nieuwe samenwerkingsonderzoeken relevante kennis kunnen verwerven voor de governance van stedelijke problemen. Om het samenwerken van de onderzoekers en beleidsmakers te volgen (en waarderen) terwijl ze problemen structureren, en deze relateren aan de (academische en bestuurlijke) praktijken waarin ze zijn ingebed, wordt het concept translatie gebruikt. Analyse van de cases laat onder meer zien dat onderzoekers en ambtenaren in collaboratieve onderzoekspraktijken relevante kennis kunnen produceren voor de governance van stedelijke problemen door:a. … te erkennen dat kennispraktijken die zijn opgezet om stedelijke problemen beter aan te pakken, kennisontwikkeling vereist evenals de gelijktijdige herstructurering van de bestuurspraktijken waarin ze zijn ingebed.b. … de kennispraktijk zo te ontwerpen dat het betrokkenen in staat stelt te putten uit hun thuispraktijken om zo een perspectief te vinden op het echte probleem dat (i.) voldoet aan vastgestelde criteria voor relevantie (transactioneel) of (ii.) een alternatief pad biedt om onderliggende belangen te realiseren die anders niet bereikt zouden kunnen worden (transformatief).c. …. afspraken maken over een methode die in staat stelt om de rol van macht te her- en erkennen en die de partners in staat stelt om de invloed ervan te orkestreren - in samenhang met methoden voor kennisontwikkeling.Het proefschrift bestaat uit zes hoofdstukken en sluit af met een aantal praktische aanbevelingen voor zowel ontwerpers, deelnemers als financiers van stedelijke kennisproducties
Eradicating cancer cells: struggle with a chameleon
Eradication of cancer stem cells to abrogate tumor growth is a new treatment modality. However, like normal cells cancer cells show plasticity. Differentiated tumor stem cells can acquire stem cell properties when they gain access to the stem cell niche. This indicates that eradicating of stem cells (emptying of the niche) alone will not lead to eradication of the tumor. Treatment should be directed to cancer stem cells à nd more mature cancer cells
Wijken in uitvoering, onderzoek naar wijkgerichte praktijken in Den Haag.
Politieke Instituties: Ontwerp, functioneren, effecte
Proteomics of Human Dendritic Cell Subsets Reveals Subset-Specific Surface Markers and Differential Inflammasome Function.
Dendritic cells (DCs) play a key role in orchestrating adaptive immune responses. In human blood, three distinct subsets exist: plasmacytoid DCs (pDCs) and BDCA3+ and CD1c+ myeloid DCs. In addition, a DC-like CD16+ monocyte has been reported. Although RNA-expression profiles have been previously compared, protein expression data may provide a different picture. Here, we exploited label-free quantitative mass spectrometry to compare and identify differences in primary human DC subset proteins. Moreover, we integrated these proteomic data with existing mRNA data to derive robust cell-specific expression signatures with more than 400 differentially expressed proteins between subsets, forming a solid basis for investigation of subset-specific functions. We illustrated this by extracting subset identification markers and by demonstrating that pDCs lack caspase-1 and only express low levels of other inflammasome-related proteins. In accordance, pDCs were incapable of interleukin (IL)-1β secretion in response to ATP
Human CD1c+ DCs are critical cellular mediators of immune responses induced by immunogenic cell death
Chemotherapeutics, including the platinum compounds oxaliplatin (OXP) and cisplatin (CDDP), are standard care of treatment for cancer. Although chemotherapy has long been considered immunosuppressive, evidence now suggests that certain cytotoxic agents can efficiently stimulate antitumor responses, through the induction of a form of apoptosis, called immunogenic cell death (ICD). ICD is characterized by exposure of calreticulin and heat shock proteins (HSPs), secretion of ATP and release of high-mobility group box 1 (HMGB1). Proper activation of the immune system relies on the integration of these signals by dendritic cells (DCs). Studies on the crucial role of DCs, in the context of ICD, have been performed using mouse models or human in vitro-generated monocyte-derived DCs (moDCs), which do not fully recapitulate the in vivo situation. Here, we explore the effect of platinum-induced ICD on phenotype and function of human blood circulating DCs. Tumor cells were treated with OXP or CDDP and induction of ICD was investigated. We show that both platinum drugs triggered translocation of calreticulin and HSP70, as well as the release of ATP and HMGB1. Platinum treatment increased phagocytosis of tumor fragments by human blood DCs and enhanced phenotypic maturation of blood myeloid and plasmacytoid DCs. Moreover, upon interaction with platinum-treated tumor cells, CD1c+ DCs efficiently stimulated allogeneic proliferation of T lymphocytes. Together, our observations indicate that platinum-treated tumor cells may exert an active stimulatory effect on human blood DCs. In particular, these data suggest that CD1c+ DCs are critical mediators of immune responses induced by ICD
Survival of Ovarian Cancer Patients Is Independent of the Presence of DC and T Cell Subsets in Ascites
Ascites is a prominent feature of ovarian cancer and could serve as liquid biopsy to assess the immune status of patients. Tumor-infiltrating T lymphocytes are correlated with improved survival in ovarian cancer. To investigate whether immune cells in ascites are associated with patient outcome, we analyzed the amount of dendritic cell (DC) and T cell subsets in ascites from ovarian cancer patients diagnosed with high-grade serous cancer (HGSC). Ascites was collected from 62 HGSC patients prior to chemotherapy. Clinicopathological, histological and follow-up data from patients were collected. Ascites-derived immune cells were isolated using density-gradient centrifugation. The presence of myeloid DCs (BDCA-1+, BDCA-3+, CD16+), pDCs (CD123+BDCA-2+), and T cells (CD4+, CD8+) was analyzed using flow cytometry. Complete cytoreduction, response to primary treatment and chemosensitivity were associated with improved patient outcome. In contrast, immune cells in ascites did not significantly correlate with patient survival. However, we observed a trend toward improved outcome for patients having low percentages of CD4+ T cells. Furthermore, we assessed the expression of co-stimulatory and co-inhibitory molecules on T cells and non-immune cells in 10 ascites samples. PD-1 was expressed by 30% of ascites-derived T cells and PD-L1 by 50% of non-immune cells. However, the percentage of DC and T cell subsets in ascites was not directly correlated to the survival of HGSC patients
Adjuvant dendritic cell vaccination induces tumor-specific immune responses in the majority of stage III melanoma patients.
Purpose To determine the effectiveness of adjuvant dendritic cell (DC) vaccination to induce tumor-specific immunological responses in stage III melanoma patients.Experimental design Retrospective analysis of stage III melanoma patients, vaccinated with autologous monocyte-derived DC loaded with tumor-associated antigens (TAA) gp100 and tyrosinase after radical lymph node dissection. Skin-test infiltrating lymphocytes (SKILs) obtained from delayed-type hypersensitivity skin-test biopsies were analyzed for the presence of TAA-specific CD8(+) T cells by tetrameric MHC-peptide complexes and by functional TAA-specific T cell assays, defined by peptide-recognition (T2 cells) and/or tumor-recognition (BLM and/or MEL624) with specific production of Th1 cytokines and no Th2 cytokines.Results Ninety-seven patients were analyzed: 21 with stage IIIA, 34 with stage IIIB, and 42 had stage IIIC disease. Tetramer-positive CD8(+) T cells were present in 68 patients (70%), and 24 of them showed a response against all 3 epitopes tested (gp100:154-162, gp100:280-288, and tyrosinase:369-377) at any point during vaccinations. A functional T cell response was found in 62 patients (64%). Rates of peptide-recognition of gp100:154-162, gp100:280-288, and tyrosinase:369-377 were 40%, 29%, and 45%, respectively. Median recurrence-free survival and distant metastasis-free survival of the whole study population were 23.0Â mo and 36.8Â mo, respectively.Conclusions DC vaccination induces a functional TAA-specific T cell response in the majority of stage III melanoma patients, indicating it is more effective in stage III than in stage IV melanoma patients. Furthermore, performing multiple cycles of vaccinations enhances the chance of a broader immune response
Demilitariseer de polder. Oorlogsmetaforiek, geschiedschrijving en de toekomst van de Nederlandse delta
De polder als eeuwig slagveld: Landschap, waterbeheer en militaire metaforiek
Voor veel Nederlanders is de gewonnen 'strijd tegen het water' een van de grootste wapenfeiten van ons land. Dit nationale verhaal doordrenkt met militaire metaforiek heeft niet alleen ons denken over het landschap gevormd, maar ook het landschap zelf. Echter, nu de zeespiegel stijgt moeten er radicale acties warden ondernomen waarmee niet alleen het Nederlandse landschap ingrijpend kan veranderen, maar ook het nationale verhaal dat er mee verbonden is. Beleidsmakers, journalisten en historici zouden hierbij kunnen helpen door de nadruk in de geschiedenis van waterbeheer te verschuiven van veroveringsdrang naar aanpassingsvermogen
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