2,341 research outputs found

    The Public Value Scorecard: A Rejoinder and an Alternative to "Strategic Performance Measurement and Management in Non-Profit Organizations"

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    Robert Kaplan's Balanced Scorecard has played an important and welcome role in the nonprofit world as nonprofit organizations have struggled to measure their performance. Many nonprofit organizations have taken both general inspiration and specific operational guidance from the ideas advanced in this important work. Their pioneering efforts to apply these concepts to their own particular settings have added a layer of richness to the important concepts. Given the great contribution of this work to helping nonprofits meet the challenge of measuring their performance, it seems both ungracious and unhelpful to criticize it. Yet, as I review the concepts of the Balanced Scorecard, and look closely at the cases of organizations that have tried to use these concepts to measure their performance, I believe that some systematic confusions arise. Further, I think the source of these confusions lies in the fact the basic concepts of the Balanced Scorecard have not been sufficiently adapted from the private, for-profit world where they were born to the world of the nonprofit manager where they are now being applied. Finally, I think a different way of thinking about nonprofit strategy and linking that to performance measurement exists that is simpler that and more reliable for nonprofit organizations to rely upon. The purpose of this paper is to set out these contrarian ideas. This publication is Hauser Center Working Paper No. 18. The Hauser Center Working Paper Series was launched during the summer of 2000. The Series enables the Hauser Center to share with a broad audience important works-in-progress written by Hauser Center scholars and researchers

    The transcription factor network in Th9 cells

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    The development of T helper cell subsets requires activated T cells that respond to a polarizing cytokine environment resulting in the activation and expression of transcription factors. The subset-specific transcription factors bind and induce the production of specific effector cytokines. Th9 cells express IL-9 and develop in the presence of TGFβ, IL-4, and IL-2. Each of these cytokines activates signaling pathways that are required for Th9 differentiation and IL-9 production. In this review, I summarize what is currently understood about the signaling pathways and transcription factors that promote the Th9 genetic program, providing some perspective for the integration of the signals in regulating the Il9 gene and dictating the expression of other Th9-associated genes. I highlight how experiments in mouse cells have established a transcriptional network that is conserved in human T cells and set the stage toward defining the next important questions for a more detailed understanding of Th9 cell development and function

    IL-9 by INFERence

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    Despite discovery of the cytokine over 20 years ago, the relevant biological sources of IL-9 have remained a mystery. In this issue of Immunity, Licona-Limón et al. (2013) use a newly generated reporter mouse to demonstrate a role for IL-9-secreting T cells in helminthic parasite immunity

    STAT6 and PARP Family Members in the Development of T Cell-dependent Allergic Inflammation

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    Allergic inflammation requires the orchestration of altered gene expression in the target tissue and in the infiltrating immune cells. The transcription factor STAT6 is critical in activating cytokine gene expression and cytokine signaling both in the immune cells and in target tissue cells including airway epithelia, keratinocytes and esophageal epithelial cells. STAT6 is activated by the cytokines IL-4 and IL-13 to mediate the pathogenesis of allergic disorders such as asthma, atopic dermatitis, food allergy and eosinophilic esophagitis (EoE). In this review, we summarize the role of STAT6 in allergic diseases, its interaction with the co-factor PARP14 and the molecular mechanisms by which STAT6 and PARP14 regulate gene transcription

    Th9 immunodeficiency in Hyper IgE syndrome patients

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    Diverse inflammatory cytokines induce selectin ligand expression on murine CD4 T cells via p38α MAPK

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    Selectins are glycan-binding adhesion molecules that mediate the initial steps of leukocyte recognition of endothelium. Cytokines control numerous aspects of CD4 Th cell differentiation, but how cytokines control the induction of ligands for E- and P-selectin on Th cell subsets remains poorly understood. Among 20 cytokines that affect Th cell differentiation, we identified six that induce expression of selectin ligands on murine CD4 T cells above the low levels associated with TCR engagement: IL-12, IL-18, IL-27, IL-9, IL-25, and TGF-β1. Collectively, these six cytokines could potentially account for selectin ligand expression on all of the currently defined nonsessile Th cell lineages, including Th1, Th2, Th9, and Th17 cells, as well as regulatory T cells. Induction of selectin ligand expression by each of these six cytokines was almost completely inhibited by pharmacologic inhibition of p38 MAPK, but not other MAPKs, or by conditional genetic deletion of p38α MAPK. Analysis of the expression of key glycosyltransferase genes revealed that p38α signaling was selectively required for induction of Fut7 and Gcnt1 but not for the induction of St3gal4 or St3gal6. Constitutively active MKK6, an immediate upstream activator of p38 MAPK, induced selectin ligand expression equivalent to that of cytokines, and this induction was completely dependent on the expression of p38α. Our results identify the repertoire of cytokines responsible for selectin ligand induction on CD4 T cells and provide a mechanistic link between Th cell development and T cell migration

    The transcription factor Etv5 controls TH17 cell development and allergic airway inflammation

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    Background The differentiation of TH17 cells, which promote pulmonary inflammation, requires the cooperation of a network of transcription factors. Objectives We sought to define the role of Etv5, an Ets-family transcription factor, in TH17 cell development and function. Methods TH17 development was examined in primary mouse T cells wherein Etv5 expression was altered by retroviral transduction, small interfering RNA targeting a specific gene, and mice with a conditional deletion of Etv5 in T cells. The direct function of Etv5 on the Il17 locus was tested with chromatin immunoprecipitation and reporter assays. The house dust mite–induced allergic inflammation model was used to test the requirement for Etv5-dependent TH17 functions in vivo. Results We identify Etv5 as a signal transducer and activator of transcription 3–induced positive regulator of TH17 development. Etv5 controls TH17 differentiation by directly promoting 0a and Il17f expression. Etv5 recruits histone-modifying enzymes to the Il17a–Il17f locus, resulting in increased active histone marks and decreased repressive histone marks. In a model of allergic airway inflammation, mice with Etv5-deficient T cells have reduced airway inflammation and IL-17A/F production in the lung and bronchoalveolar lavage fluid compared with wild-type mice, without changes in TH2 cytokine production. Conclusions These data define signal transducer and activator of transcription 3–dependent feed-forward control of TH17 cytokine production and a novel role for Etv5 in promoting T cell–dependent airway inflammation

    Platelet-Activating Factor-Induced Reduction in Contact Hypersensitivity Responses Is Mediated by Mast Cells via Cyclooxygenase-2-Dependent Mechanisms

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    Platelet-activating factor (PAF) stimulates numerous cell types via activation of the G protein-coupled PAF receptor (PAFR). PAFR activation not only induces acute proinflammatory responses, but it also induces delayed systemic immunosuppressive effects by modulating host immunity. Although enzymatic synthesis and degradation of PAF are tightly regulated, oxidative stressors, such as UVB, chemotherapy, and cigarette smoke, can generate PAF and PAF-like molecules in an unregulated fashion via the oxidation of membrane phospholipids. Recent studies have demonstrated the relevance of the mast cell (MC) PAFR in PAFR-induced systemic immunosuppression. The current study was designed to determine the exact mechanisms and mediators involved in MC PAFR-mediated systemic immunosuppression. By using a contact hypersensitivity model, the MC PAFR was not only found to be necessary, but also sufficient to mediate the immunosuppressive effects of systemic PAF. Furthermore, activation of the MC PAFR induces MC-derived histamine and PGE2 release. Importantly, PAFR-mediated systemic immunosuppression was defective in mice that lacked MCs, or in MC-deficient mice transplanted with histidine decarboxylase- or cyclooxygenase-2-deficient MCs. Lastly, it was found that PGs could modulate MC migration to draining lymph nodes. These results support the hypothesis that MC PAFR activation promotes the immunosuppressive effects of PAF in part through histamine- and PGE2-dependent mechanisms

    Paracrine IL-2 Is Required for Optimal Type 2 Effector Cytokine Production

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    IL-2 is a pleiotropic cytokine that promotes the differentiation of Th cell subsets, including Th1, Th2, and Th9 cells, but it impairs the development of Th17 and T follicular helper cells. Although IL-2 is produced by all polarized Th subsets to some level, how it impacts cytokine production when effector T cells are restimulated is unknown. We show in this article that Golgi transport inhibitors (GTIs) blocked IL-9 production. Mechanistically, GTIs blocked secretion of IL-2 that normally feeds back in a paracrine manner to promote STAT5 activation and IL-9 production. IL-2 feedback had no effect on Th1- or Th17-signature cytokine production, but it promoted Th2- and Th9-associated cytokine expression. These data suggest that the use of GTIs results in an underestimation of the presence of type 2 cytokine-secreting cells and highlight IL-2 as a critical component in optimal cytokine production by Th2 and Th9 cells in vitro and in vivo
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