Abstract |
A C(36) linear acetylene alcohol, lembehyne A (LB-A), induces neuronal differentiation against neuroblastoma cells morphologically and also functionally. The differentiation and cytostatic effect induced by LB-A was specific to neuroblastoma, Neuro 2A cells. To identify the target protein for LB-A, a radioactive photoaffinity probe, [(125)I]18-(2'-azido-5'-iodo-benzoyloxy)-LB-18 ([(125)I]azido-LB-18), was synthesized. As a result of in situ labeling experiments against Neuro 2A cells, a protein of M(r) 30 kDa was photolabeled specifically. This labeling was inhibited in the presence of LB-A or the active analogs of LB-A, whereas the inactive analogs showed no inhibitory effect on this labeling. These results suggest that this protein of M(r) 30 kDa is the target protein for LB-A and may play an important role for the neuronal differentiation in neuroblastoma, Neuro 2A cells.
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Authors | Shunji Aoki, Kouhei Matsui, Tetsuo Takata, Motomasa Kobayashi |
Journal | FEBS letters
(FEBS Lett)
Vol. 544
Issue 1-3
Pg. 223-7
(Jun 05 2003)
ISSN: 0014-5793 [Print] England |
PMID | 12782321
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Alkynes
- Fatty Alcohols
- lembehyne A
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Topics |
- Alkynes
(chemistry, pharmacology)
- Animals
- Blotting, Western
- Cell Cycle
- Cell Differentiation
- Electrophoresis, Polyacrylamide Gel
- Fatty Alcohols
(chemistry, pharmacology)
- Fibroblasts
(metabolism)
- Humans
- K562 Cells
- Light
- Mice
- Models, Chemical
- Neurons
(cytology)
- Porifera
- Rats
- Tumor Cells, Cultured
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