An analog of a dipeptide-like structure of FK506 increases glial cell line-derived neurotrophic factor expression through cAMP response element-binding Protein activated by heat shock protein 90/Akt signaling pathway

Xiaobo Cen, Atsumi Nitta, Shin Ohya, Yinglan Zhao, Naoya Ozawa, Akihiro Mouri, Daisuke Ibi, Li Wang, Makiko Suzuki, Kuniaki Saito, Yasutomo Ito, Tetsuya Kawagoe, Yukihiro Noda, Yoshihisa Ito, Shoei Furukawa, Toshitaka Nabeshima

Research output: Contribution to journalArticle

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Abstract

Glial cell line-derived neurotrophic factor (GDNF) is an important neurotrophic factor that has therapeutic implications for neurodegenerative disorders. We previously showed that leucine-isoleucine (Leu-Ile), an analog of a dipeptide-like structure of FK506 (tacrolimus), induces GDNF expression both in vivo and in vitro. In this investigation, we sought to clarify the cellular mechanisms underlying the GDNF-inducing effect of this dipeptide. Leu-Ile transport was investigated using fluorescein isothiocyanate-Leu-Ile in cultured neurons, and the results showed the transmembrane mobility of this dipeptide. By liquid chromatography-mass spectrometry and quartz crystal microbalance assay, we identified heat shock cognate protein 70 as a protein binding specifically to Leu-Ile, and molecular modeling showed that the ATPase domain is the predicted binding site. Leu-Ile stimulated Akt phosphorylation, which was attenuated significantly by heat shock protein 90 (Hsp90) inhibitor geldanamycin (GA). Moreover, enhanced interaction between phosphorylated Akt and Hsp90 was detected by immunoprecipitation. Leu-Ile elicited an increase in cAMP response element binding protein (CREB) phosphorylation, which was inhibited by GA, indicating that CREB is a downstream target of Hsp90/Akt signaling. Leu-Ile elevated the levels of GDNF mRNA and protein expression, whereas inhibition of CREB blocked such effects. Leu-Ile promoted the binding activity of phosphorylated CREB with cAMP response element. These findings show that CREB plays a key role in transcriptional regulation of GDNF expression induced by Leu-Ile. In conclusion, Leu-Ile activates Hsp90/Akt/CREB signaling, which contributes to the upregulation of GDNF expression. It may represent a novel lead compound for the treatment of dopaminergic neurons or motoneuron diseases.

Original languageEnglish
Pages (from-to)3335-3344
Number of pages10
JournalJournal of Neuroscience
Volume26
Issue number12
DOIs
Publication statusPublished - 22-03-2006

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Glial Cell Line-Derived Neurotrophic Factor
HSP90 Heat-Shock Proteins
Cyclic AMP Response Element-Binding Protein
Isoleucine
Dipeptides
Tacrolimus
Leucine
HSC70 Heat-Shock Proteins
Phosphorylation
Quartz Crystal Microbalance Techniques
Dopaminergic Neurons
Nerve Growth Factors
Response Elements
Motor Neurons
Fluorescein
Immunoprecipitation
Protein Binding
Liquid Chromatography
Neurodegenerative Diseases
Adenosine Triphosphatases

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)

Cite this

Cen, Xiaobo ; Nitta, Atsumi ; Ohya, Shin ; Zhao, Yinglan ; Ozawa, Naoya ; Mouri, Akihiro ; Ibi, Daisuke ; Wang, Li ; Suzuki, Makiko ; Saito, Kuniaki ; Ito, Yasutomo ; Kawagoe, Tetsuya ; Noda, Yukihiro ; Ito, Yoshihisa ; Furukawa, Shoei ; Nabeshima, Toshitaka. / An analog of a dipeptide-like structure of FK506 increases glial cell line-derived neurotrophic factor expression through cAMP response element-binding Protein activated by heat shock protein 90/Akt signaling pathway. In: Journal of Neuroscience. 2006 ; Vol. 26, No. 12. pp. 3335-3344.
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abstract = "Glial cell line-derived neurotrophic factor (GDNF) is an important neurotrophic factor that has therapeutic implications for neurodegenerative disorders. We previously showed that leucine-isoleucine (Leu-Ile), an analog of a dipeptide-like structure of FK506 (tacrolimus), induces GDNF expression both in vivo and in vitro. In this investigation, we sought to clarify the cellular mechanisms underlying the GDNF-inducing effect of this dipeptide. Leu-Ile transport was investigated using fluorescein isothiocyanate-Leu-Ile in cultured neurons, and the results showed the transmembrane mobility of this dipeptide. By liquid chromatography-mass spectrometry and quartz crystal microbalance assay, we identified heat shock cognate protein 70 as a protein binding specifically to Leu-Ile, and molecular modeling showed that the ATPase domain is the predicted binding site. Leu-Ile stimulated Akt phosphorylation, which was attenuated significantly by heat shock protein 90 (Hsp90) inhibitor geldanamycin (GA). Moreover, enhanced interaction between phosphorylated Akt and Hsp90 was detected by immunoprecipitation. Leu-Ile elicited an increase in cAMP response element binding protein (CREB) phosphorylation, which was inhibited by GA, indicating that CREB is a downstream target of Hsp90/Akt signaling. Leu-Ile elevated the levels of GDNF mRNA and protein expression, whereas inhibition of CREB blocked such effects. Leu-Ile promoted the binding activity of phosphorylated CREB with cAMP response element. These findings show that CREB plays a key role in transcriptional regulation of GDNF expression induced by Leu-Ile. In conclusion, Leu-Ile activates Hsp90/Akt/CREB signaling, which contributes to the upregulation of GDNF expression. It may represent a novel lead compound for the treatment of dopaminergic neurons or motoneuron diseases.",
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An analog of a dipeptide-like structure of FK506 increases glial cell line-derived neurotrophic factor expression through cAMP response element-binding Protein activated by heat shock protein 90/Akt signaling pathway. / Cen, Xiaobo; Nitta, Atsumi; Ohya, Shin; Zhao, Yinglan; Ozawa, Naoya; Mouri, Akihiro; Ibi, Daisuke; Wang, Li; Suzuki, Makiko; Saito, Kuniaki; Ito, Yasutomo; Kawagoe, Tetsuya; Noda, Yukihiro; Ito, Yoshihisa; Furukawa, Shoei; Nabeshima, Toshitaka.

In: Journal of Neuroscience, Vol. 26, No. 12, 22.03.2006, p. 3335-3344.

Research output: Contribution to journalArticle

TY - JOUR

T1 - An analog of a dipeptide-like structure of FK506 increases glial cell line-derived neurotrophic factor expression through cAMP response element-binding Protein activated by heat shock protein 90/Akt signaling pathway

AU - Cen, Xiaobo

AU - Nitta, Atsumi

AU - Ohya, Shin

AU - Zhao, Yinglan

AU - Ozawa, Naoya

AU - Mouri, Akihiro

AU - Ibi, Daisuke

AU - Wang, Li

AU - Suzuki, Makiko

AU - Saito, Kuniaki

AU - Ito, Yasutomo

AU - Kawagoe, Tetsuya

AU - Noda, Yukihiro

AU - Ito, Yoshihisa

AU - Furukawa, Shoei

AU - Nabeshima, Toshitaka

PY - 2006/3/22

Y1 - 2006/3/22

N2 - Glial cell line-derived neurotrophic factor (GDNF) is an important neurotrophic factor that has therapeutic implications for neurodegenerative disorders. We previously showed that leucine-isoleucine (Leu-Ile), an analog of a dipeptide-like structure of FK506 (tacrolimus), induces GDNF expression both in vivo and in vitro. In this investigation, we sought to clarify the cellular mechanisms underlying the GDNF-inducing effect of this dipeptide. Leu-Ile transport was investigated using fluorescein isothiocyanate-Leu-Ile in cultured neurons, and the results showed the transmembrane mobility of this dipeptide. By liquid chromatography-mass spectrometry and quartz crystal microbalance assay, we identified heat shock cognate protein 70 as a protein binding specifically to Leu-Ile, and molecular modeling showed that the ATPase domain is the predicted binding site. Leu-Ile stimulated Akt phosphorylation, which was attenuated significantly by heat shock protein 90 (Hsp90) inhibitor geldanamycin (GA). Moreover, enhanced interaction between phosphorylated Akt and Hsp90 was detected by immunoprecipitation. Leu-Ile elicited an increase in cAMP response element binding protein (CREB) phosphorylation, which was inhibited by GA, indicating that CREB is a downstream target of Hsp90/Akt signaling. Leu-Ile elevated the levels of GDNF mRNA and protein expression, whereas inhibition of CREB blocked such effects. Leu-Ile promoted the binding activity of phosphorylated CREB with cAMP response element. These findings show that CREB plays a key role in transcriptional regulation of GDNF expression induced by Leu-Ile. In conclusion, Leu-Ile activates Hsp90/Akt/CREB signaling, which contributes to the upregulation of GDNF expression. It may represent a novel lead compound for the treatment of dopaminergic neurons or motoneuron diseases.

AB - Glial cell line-derived neurotrophic factor (GDNF) is an important neurotrophic factor that has therapeutic implications for neurodegenerative disorders. We previously showed that leucine-isoleucine (Leu-Ile), an analog of a dipeptide-like structure of FK506 (tacrolimus), induces GDNF expression both in vivo and in vitro. In this investigation, we sought to clarify the cellular mechanisms underlying the GDNF-inducing effect of this dipeptide. Leu-Ile transport was investigated using fluorescein isothiocyanate-Leu-Ile in cultured neurons, and the results showed the transmembrane mobility of this dipeptide. By liquid chromatography-mass spectrometry and quartz crystal microbalance assay, we identified heat shock cognate protein 70 as a protein binding specifically to Leu-Ile, and molecular modeling showed that the ATPase domain is the predicted binding site. Leu-Ile stimulated Akt phosphorylation, which was attenuated significantly by heat shock protein 90 (Hsp90) inhibitor geldanamycin (GA). Moreover, enhanced interaction between phosphorylated Akt and Hsp90 was detected by immunoprecipitation. Leu-Ile elicited an increase in cAMP response element binding protein (CREB) phosphorylation, which was inhibited by GA, indicating that CREB is a downstream target of Hsp90/Akt signaling. Leu-Ile elevated the levels of GDNF mRNA and protein expression, whereas inhibition of CREB blocked such effects. Leu-Ile promoted the binding activity of phosphorylated CREB with cAMP response element. These findings show that CREB plays a key role in transcriptional regulation of GDNF expression induced by Leu-Ile. In conclusion, Leu-Ile activates Hsp90/Akt/CREB signaling, which contributes to the upregulation of GDNF expression. It may represent a novel lead compound for the treatment of dopaminergic neurons or motoneuron diseases.

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