Endocrine Abstracts

IGFBP-2 represents a multifunctional protein with effects on growth, reproductive development, aging, and metabolism. For the expression of these diverse effects in vivo, IGFBP-2 has a number of binding sites for IGFs, integrins, and proteoglycans. In order to assess the relative contributions of these binding sites to the multiple effects of IGFBP-2, we have developed transgenic mouse models overexpressing intact or mutant IGFBP-2. Here we discuss functions of the RG...

The myokine irisin is secreted after cleavage of the transmembrane protein Fibronectin type III domain-containing protein five and was shown to induce a thermogenic program in white adipose tissue. This cleavage can be induced by exercise, thus linking exercise with browning of adipose tissue. We investigated the response of Fndc5/irisin as well as its inducer Peroxisome proliferator-activated receptor gamma co-activator 1α (Ppargc1a) in mice long-term selected for high t...