PMID- 18510313 OWN - NLM STAT- MEDLINE DCOM- 20080729 LR - 20080625 IS - 1554-8937 (Electronic) IS - 1554-8929 (Linking) VI - 3 IP - 6 DP - 2008 Jun 20 TI - Cell-based fluorescent indicator to visualize brain-derived neurotrophic factor secreted from living neurons. PG - 352-8 LID - 10.1021/cb800052v [doi] AB - Brain-derived neurotrophic factor (BDNF) is a polypeptide that is secreted from neurons. Although there is mounting evidence that BDNF regulates neuronal development and synaptic plasticity, BDNF secretion has remained unclear due to lack of appropriate methods for the analysis of its dynamics. To visualize BDNF secretion from neurons, here we have developed a cell-based fluorescent indicator for BDNF. We showed that the present cell-based fluorescent indicator, named "Bescell", has high selectivity to BDNF and detects picomolar concentrations of BDNF (detection limit of 60 pM). Bescell has visualized endogenous BDNF secreted from hippocampal neurons. It thus provides a powerful tool for the analysis of BDNF secretion from living neurons. FAU - Nakajima, Takahiro AU - Nakajima T FAU - Sato, Moritoshi AU - Sato M FAU - Akaza, Naoko AU - Akaza N FAU - Umezawa, Yoshio AU - Umezawa Y LA - eng PT - Letter PT - Research Support, Non-U.S. Gov't PL - United States TA - ACS Chem Biol JT - ACS chemical biology JID - 101282906 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (DNA, Complementary) RN - 0 (Luminescent Agents) SB - IM MH - Animals MH - Binding Sites MH - Biosensing Techniques/*methods MH - *Brain-Derived Neurotrophic Factor/analysis/metabolism MH - Cells, Cultured MH - Cloning, Molecular MH - Cricetinae MH - Cricetulus MH - DNA, Complementary/genetics MH - Female MH - Fluorescence Resonance Energy Transfer/*methods MH - *Hippocampus/metabolism/pathology MH - Humans MH - Luminescent Agents/*chemistry MH - *Neurons/cytology/metabolism MH - Reproducibility of Results MH - Sensitivity and Specificity MH - Time Factors EDAT- 2008/05/31 09:00 MHDA- 2008/07/30 09:00 CRDT- 2008/05/31 09:00 PHST- 2008/05/31 09:00 [pubmed] PHST- 2008/07/30 09:00 [medline] PHST- 2008/05/31 09:00 [entrez] AID - 10.1021/cb800052v [doi] PST - ppublish SO - ACS Chem Biol. 2008 Jun 20;3(6):352-8. doi: 10.1021/cb800052v.