422 research outputs found
Competition and R&D cooperation with universities and competitors
This paper analyzes the relationship between competition and R&D cooperation with universities and competitors. Our simple model predicts that more competitors reduce the incentives for horizontal cooperation as it diminishes the gains from collusion. Assuming that the value of synergies and spillovers created by cooperation depends on competition intensity reveals two distinct and opposing incentives for cooperation. While synergies foster R&D cooperation, spillovers may hinder cooperation. We mainly hypothesize that university cooperation corresponds to product innovation and hence quality competition, while horizontal cooperation lead to process innovations and therefore relates to price competition. We test these hypotheses based on Swiss firm-level panel data controlling for simultaneity of cooperation decisions and endogeneity of competition. Our empirical analysis supports the relevance of distinguishing between competition dimensions and cooperation partners, respectively. We find that price competition matters for both university and horizontal cooperation and it takes the form of an inverted U-shape. On the contrary, quality competition only matters for university cooperation and the relationship shows a U-form. Moreover we see that the number of principal competitors is significantly related only to cooperation between competitors and the relationship shows an inverted U-form. Hence, markets with a medium number of competitors are more receptive for horizontal cooperation. In sum these findings advance our understanding of the relationship between innovation and competition policy
Vertical educational diversity and innovation performance
This paper uses panel data of Swiss firms to analyze the impact of education level diversity in the workforce on innovation performance, addressing endogeneity by exploiting within firm variation as well as variation in labor supply across regions. We find that vertical educational diversity increases the extensive margin of R&D and product innovation, particularly new product innovation. However, the relationship with process innovation, R&D intensity, and product innovation intensity is insignificant or even negative. These results are in line with the idea that vertical educational diversity enhances the creative moment of the invention phase, while it might affect the commercialization phase negatively due to the dominance of coordination and communication costs relative to the gains in creativity
Competition and R&D cooperation with universities and competitors
This paper analyses the relationship between competitive environment and R&D cooperation with universities and competitors. Our simple model suggests that cooperation creates benefits in terms of synergies but also induces costs due to spillovers. Since the value of these synergies and spillovers depends on the competitive pressure, cooperation propensity depends on the competitive environment. Differentiating between the dimensions of competition, we hypothesize that university cooperation corresponds to quality competition, while horizontal cooperation relates to price competition. Furthermore, we predict that a higher number of competitors reduces the incentives for horizontal cooperation as it diminishes the gains from "collusion”. We test these hypotheses using Swiss firm-level panel data that allows us to control for simultaneity of cooperation decisions and endogeneity of competition. Our empirical analysis supports the relevance of distinguishing between competition dimensions and cooperation partners, respectively. We find that price competition has an influence on university cooperation in the form of an inverted U. Quality competition only has an influence on university cooperation and the relationship shows a U-form. Moreover, we see that the number of principal competitors reduces cooperation between competitor
Active Antigen-specific Immunotherapy of Melanoma: from Basic Science to Clinical Investigation
Advanced-stage melanoma here dismal prognosis, and novel therapeutic approaches are urgently required. The possibility of taking advantage of the immune response of patients for its treatment has been an appealing concept for almost a century. Only during the last decade, however, has the molecular identification of tumor-associated antigens (TAAs) offered the possibility of vaccinating patients (e.g., active induction of TAA-specific immune responses). Active antigen-specific immunotherapy (AASIT) is currently being investigated in a number of clinical centers as a treatment option for advanced-stage melanoma. A large number of melanoma TAAs have been molecularly characterized and are being used in vaccination trials in various molecular forms and according to various immunization protocols. Here we provide a short overview on melanoma TAAs, the technologies currently in use to induce specific cytotoxic T-lymphocyte (CTL) responses in vivo, and their monitoring. We also propose a tentative AASIT agenda for the next few years, aiming at improving the capacity to induce and monitor TAA-specific immune responses and to verify their clinical effectivenes
The tumour microenvironment harbours ontogenically distinct dendritic cell populations with opposing effects on tumour immunity
Various steady state and inflamed tissues have been shown to contain a heterogeneous DC population consisting of developmentally distinct subsets, including cDC1s, cDC2s and monocyte-derived DCs, displaying differential functional specializations. The identification of functionally distinct tumour-associated DC (TADC) subpopulations could prove essential for the understanding of basic TADC biology and for envisaging targeted immunotherapies. We demonstrate that multiple mouse tumours as well as human tumours harbour ontogenically discrete TADC subsets. Monocyte-derived TADCs are prominent in tumour antigen uptake, but lack strong T-cell stimulatory capacity due to NO-mediated immunosuppression. Pre-cDC-derived TADCs have lymph node migratory potential, whereby cDC1s efficiently activate CD8(+) Tcells and cDC2s induce Th17 cells. Mice vaccinated with cDC2s displayed a reduced tumour growth accompanied by a reprogramming of pro-tumoural TAMs and a reduction of MDSCs, while cDC1 vaccination strongly induces anti-tumour CTLs. Our data might prove important for therapeutic interventions targeted at specific TADC subsets or their precursors
Identification of TPM2 and CNN1 as Novel Prognostic Markers in Functionally Characterized Human Colon Cancer-Associated Stromal Cells
Stromal infiltration is associated with poor prognosis in human colon cancers. However, the high heterogeneity of human tumor-associated stromal cells (TASCs) hampers a clear identification of specific markers of prognostic relevance. To address these issues, we established short-term cultures of TASCs and matched healthy mucosa-associated stromal cells (MASCs) from human primary colon cancers and, upon characterization of their phenotypic and functional profiles in vitro and in vivo, we identified differentially expressed markers by proteomic analysis and evaluated their prognostic significance. TASCs were characterized by higher proliferation and differentiation potential, and enhanced expression of mesenchymal stem cell markers, as compared to MASCs. TASC triggered epithelial-mesenchymal transition (EMT) in tumor cells in vitro and promoted their metastatic spread in vivo, as assessed in an orthotopic mouse model. Proteomic analysis of matched TASCs and MASCs identified a panel of markers preferentially expressed in TASCs. The expression of genes encoding two of them, calponin 1 (CNN1) and tropomyosin beta chain isoform 2 (TPM2), was significantly associated with poor outcome in independent databases and outperformed the prognostic significance of currently proposed TASC markers. The newly identified markers may improve prognostication of primary colon cancers and identification of patients at risk
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