Identity and entrepreneurship: do school peers shape entrepreneurial intentions?

We incorporate the concept of social identity into entrepreneurship and analyze the determinants of having entrepreneurial intentions. We argue that an entrepreneurial identity results from an individual's socialization. This could be parental influence but, as argued in this paper, also peer influence. Based on Programme for International Student Assessment (PISA) 2006 data in which students report their entrepreneurial intentions at the age of 15, we find that having an entrepreneurial peer group has a positive effect on an individual's entrepreneurial intentions. We find that the strength of the peer effect in a country is moderated by prevailing values, namely individualism

A Novel Platform for the Potentiation of Therapeutic Antibodies Based on Antigen-Dependent Formation of IgG Hexamers at the Cell Surface

IgG antibodies can organize into ordered hexamers on cell surfaces after binding their antigen. These hexamers bind the first component of complement C1 inducing complement-dependent target cell killing. Here, we translated this natural concept into a novel technology platform (HexaBody technology) for therapeutic antibody potentiation. We identified mutations that enhanced hexamer formation and complement activation by IgG1 antibodies against a range of targets on cells from hematological and solid tumor indications. IgG1 backbones with preferred mutations E345K or E430G conveyed a strong ability to induce conditional complement-dependent cytotoxicity (CDC) of cell lines and chronic lymphocytic leukemia (CLL) patient tumor cells, while retaining regular pharmacokinetics and biopharmaceutical developability. Both mutations potently enhanced CDC- and antibody-dependent cellular cytotoxicity (ADCC) of a type II CD20 antibody that was ineffective in complement activation, while retaining its ability to induce apoptosis. The identified IgG1 Fc backbones provide a novel platform for the generation of therapeutics with enhanced effector functions that only become activated upon binding to target cell-expressed antigen