The Edible Red Alga <Emphasis Type="Italic">Porphyra yezoensis</Emphasis> Promotes Neuronal Survival and Cytoarchitecture in Primary Hippocampal Neurons |
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Authors: | Md Mohibbullah Mohammad Maqueshudul Haque Bhuiyan Md Abdul Hannan Paulos Getachew Yong-Ki Hong Jae-Suk Choi In Soon Choi Il Soo Moon |
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Institution: | 1.Department of Biotechnology,Pukyong National University,Busan,Republic of Korea;2.Department of Anatomy,Dongguk University College of Medicine,Gyeongju,Republic of Korea;3.Department of Biochemistry and Molecular Biology,Bangladesh Agricultural University,Mymensingh,Bangladesh;4.RIS Center, IACF,Silla University,Busan,Republic of Korea;5.Department of Biological Science,Silla University,Busan,Republic of Korea |
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Abstract: | The edible red alga Porphyra yezoensis is among the most popular marine algae and is of economic and medicinal importance. In the present study, the neurotrophic and neuroprotective activities of the ethanol extract of P. yezoensis (PYE) were investigated in primary cultures of hippocampal neurons. Results revealed that PYE significantly increased neurite outgrowth at an optimal concentration of 15 µg/mL. PYE dose-dependently increased viable cells, significantly accelerated the rate of neuronal differentiation in cultures, promoted axodendritic arborization, and eventually induced synaptogenesis. In addition to morphological development, PYE also promoted functional maturation as indicated by the staining of live cultures with FM 1–43. Moreover, PYE increased neuronal survivability, which was attributed to reduced apoptosis and its ROS scavenging activity. Taurine, a major organic acid in PYE (2.584/100 mg of dry PYE) promoted neurite outgrowth in a dose-dependent manner, and this promotion was suppressed by the taurine antagonist isethionic acid. The study indicates that PYE and its active component, taurine, facilitate neuronal development and maturation and have a neuroprotective effect. |
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