A highly bioactive lignophenol derivative from bamboo lignin exhibits a potent activity to suppress apoptosis induced by oxidative stress in human neuroblastoma SH-SY5Y cells

Yukihiro Akao, Norio Seki, Yoshihito Nakagawa, Hong Yi, Kenji Matsumoto, Yukie Ito, Kuniyasu Ito, Masamitu Funaoka, Wakako Maruyama, Makoto Naoi, Yoshinori Nozawa

Research output: Contribution to journalArticle

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Abstract

A lignocresol derivative from bamboo (lig-8) exhibited a potent neuroprotective activity against hydrogen peroxide (H 2O 2)-induced apoptosis in human neuroblastoma cell line SH-SY5Y by preventing the caspase-3 activation via either caspase-8 or caspase-9. Approaches to protection against neurodegenerative diseases, in which oxidative stress and inflammation are implicated, should be based on the current concept on the etiology of these diseases. Recently, a new therapeutic strategy has been proposed to protect neurons from cell death by attenuating the apoptotic signal transduction. Lignin, a durable aromatic network polymer second to cellulose in abundance, was able to be converted into highly active lignophenol derivatives with antioxidant activity by using our newly developed phase-separation technique. These lignophenol derivatives were found to show the potent neuroprotective activity against oxidative stress. Among the compounds examined, a lignocresol derivative from bamboo (lig-8) exhibited the most potent neuroprotective activity against hydrogen peroxide (H 2O 2)-induced apoptosis in human neuroblastoma cell line SH-SY5Y by preventing the caspase-3 activation via either caspase-8 or caspase-9. Furthermore, it was found that lig-8 exerted the antiapoptotic effect by inhibiting dissipation of the mitochondrial membrane permeability transition induced by H 2O 2 or by the peripheral benzodiazepin receptor ligand PK11195. Lig-8 was also shown to be potent in the antioxidant activity in the cells exposed to H 2O 2, as assessed by flow cytometry using 5-(and-6)-chloromethyl-2′,7′- dichlorodihydrofluorescein diacetate and in vitro reactive oxygen species-scavenging potency. These data suggest that lig-8 is a promising neuroprotector, which affects the signaling pathway of neuronal cell death and that it would be of benefit to delay the progress of neurodegenerative diseases.

Original languageEnglish
Pages (from-to)4791-4801
Number of pages11
JournalBioorganic and Medicinal Chemistry
Volume12
Issue number18
DOIs
Publication statusPublished - 15-09-2004

Fingerprint

Oxidative stress
Bamboo
Caspase 9
Caspase 8
Lignin
Neuroblastoma
Caspase 3
Neurodegenerative Diseases
Hydrogen Peroxide
Oxidative Stress
Cell Death
Antioxidants
Neurodegenerative diseases
Apoptosis
Derivatives
Cell Line
Mitochondrial Membranes
Cell death
Cellulose
Permeability

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Medicine
  • Molecular Biology
  • Pharmaceutical Science
  • Drug Discovery
  • Clinical Biochemistry
  • Organic Chemistry

Cite this

Akao, Yukihiro ; Seki, Norio ; Nakagawa, Yoshihito ; Yi, Hong ; Matsumoto, Kenji ; Ito, Yukie ; Ito, Kuniyasu ; Funaoka, Masamitu ; Maruyama, Wakako ; Naoi, Makoto ; Nozawa, Yoshinori. / A highly bioactive lignophenol derivative from bamboo lignin exhibits a potent activity to suppress apoptosis induced by oxidative stress in human neuroblastoma SH-SY5Y cells. In: Bioorganic and Medicinal Chemistry. 2004 ; Vol. 12, No. 18. pp. 4791-4801.
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A highly bioactive lignophenol derivative from bamboo lignin exhibits a potent activity to suppress apoptosis induced by oxidative stress in human neuroblastoma SH-SY5Y cells. / Akao, Yukihiro; Seki, Norio; Nakagawa, Yoshihito; Yi, Hong; Matsumoto, Kenji; Ito, Yukie; Ito, Kuniyasu; Funaoka, Masamitu; Maruyama, Wakako; Naoi, Makoto; Nozawa, Yoshinori.

In: Bioorganic and Medicinal Chemistry, Vol. 12, No. 18, 15.09.2004, p. 4791-4801.

Research output: Contribution to journalArticle

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T1 - A highly bioactive lignophenol derivative from bamboo lignin exhibits a potent activity to suppress apoptosis induced by oxidative stress in human neuroblastoma SH-SY5Y cells

AU - Akao, Yukihiro

AU - Seki, Norio

AU - Nakagawa, Yoshihito

AU - Yi, Hong

AU - Matsumoto, Kenji

AU - Ito, Yukie

AU - Ito, Kuniyasu

AU - Funaoka, Masamitu

AU - Maruyama, Wakako

AU - Naoi, Makoto

AU - Nozawa, Yoshinori

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N2 - A lignocresol derivative from bamboo (lig-8) exhibited a potent neuroprotective activity against hydrogen peroxide (H 2O 2)-induced apoptosis in human neuroblastoma cell line SH-SY5Y by preventing the caspase-3 activation via either caspase-8 or caspase-9. Approaches to protection against neurodegenerative diseases, in which oxidative stress and inflammation are implicated, should be based on the current concept on the etiology of these diseases. Recently, a new therapeutic strategy has been proposed to protect neurons from cell death by attenuating the apoptotic signal transduction. Lignin, a durable aromatic network polymer second to cellulose in abundance, was able to be converted into highly active lignophenol derivatives with antioxidant activity by using our newly developed phase-separation technique. These lignophenol derivatives were found to show the potent neuroprotective activity against oxidative stress. Among the compounds examined, a lignocresol derivative from bamboo (lig-8) exhibited the most potent neuroprotective activity against hydrogen peroxide (H 2O 2)-induced apoptosis in human neuroblastoma cell line SH-SY5Y by preventing the caspase-3 activation via either caspase-8 or caspase-9. Furthermore, it was found that lig-8 exerted the antiapoptotic effect by inhibiting dissipation of the mitochondrial membrane permeability transition induced by H 2O 2 or by the peripheral benzodiazepin receptor ligand PK11195. Lig-8 was also shown to be potent in the antioxidant activity in the cells exposed to H 2O 2, as assessed by flow cytometry using 5-(and-6)-chloromethyl-2′,7′- dichlorodihydrofluorescein diacetate and in vitro reactive oxygen species-scavenging potency. These data suggest that lig-8 is a promising neuroprotector, which affects the signaling pathway of neuronal cell death and that it would be of benefit to delay the progress of neurodegenerative diseases.

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