Learn More
The chondroitin sulfate proteoglycans (CSPGs) have been implicated as both positive and negative modulators of axonal growth; however, the functional properties of only a few specific CSPGs have been investigated. Here we demonstrate that NG2, an integral membrane CSPG expressed on the surfaces of glial progenitor cells, inhibits neurite growth from(More)
Brain factor-1 (BF-1) is a winged-helix (WH) transcription factor with a restricted pattern of expression in the neural tube. In the embryo, BF-1 is localized to the progenitor cells of the most rostral neural tube, the telencephalic neuroepithelium. Expression of BF-1 persists in the adult brain in the structures derived from the telencephalon, including(More)
The winged-helix (WH) BF-1 gene, which encodes brain factor 1 (BF-1) (also known as foxg1), is essential for the proliferation of the progenitor cells of the cerebral cortex. Here we show that BF-1-deficient telencephalic progenitor cells are more apt to leave the cell cycle in response to transforming growth factor beta (TGF-beta) and activin. We found(More)
Glycosaminoglycans (GAGs), the carbohydrate moieties of proteoglycans, are thought to be positive and negative regulators of axonal growth. The physiological role of GAGs is controversial as some studies have shown that GAGs inhibit cell adhesion and neurite elongation (Exp Neurol 109:111, 1990) whereas other studies have reported a growth stimulatory(More)
The mechanisms by which transforming growth factor beta (TGF-beta) and related ligands regulate transcription remain poorly understood. The winged-helix (WH) transcription factor fork head activin signal transducer 1 (FAST-1) was identified as a mediator of activin signaling in Xenopus embryos (X. Chen, M. J. Rubock, and M. Whitman, Nature 383:691-696,(More)
The widely used diethylhexyl phthalate (DEHP) is a known endocrine disruptor that causes persistent alterations in the structure and function of female reproductive system, including ovaries, uterus and oviducts. To explore the molecular mechanism of the effect of DEHP on the development of mammary glands, we investigated the cell cycle, growth,(More)
The NG2 chondroitin sulfate proteoglycan inhibits neurite outgrowth from neonatal rat cerebellar granule neurons when presented to the neurons as a component of the substrate. To begin to understand the cellular mechanisms by which this inhibition occurs, we investigated the hypothesis that cerebellar granule neurons express cell surface receptors for NG2(More)
  • 1