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Sato A, Fukase T, Ebina K. 10-Hydroxy-2-decenoic acid-derived aldehydes attenuate anaphylactic hypothermia in vivo. PHARMANUTRITION 2022. [DOI: 10.1016/j.phanu.2022.100301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sato A, Fukase T, Ebina K. Biotinylated peptides substituted with D‐amino acids with high stability as anti‐anaphylactic agents targeting platelet‐activating factor. J Pept Sci 2022; 28:e3412. [DOI: 10.1002/psc.3412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/21/2022] [Accepted: 04/14/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Akira Sato
- Faculty of Pharmacy Iryo Sosei University Fukushima Japan
- Graduate School of Life Science and Technology, Iryo Sosei University Fukushima Japan
| | | | - Keiichi Ebina
- Faculty of Pharmacy Iryo Sosei University Fukushima Japan
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Sato A, Yamazaki M, Watanabe H, Sakurai E, Ebina K. Human estrogen sulfotransferase and its related fluorescently labeled decapeptides specifically interact with oxidized low-density lipoprotein. J Pept Sci 2020; 26:e3274. [PMID: 32633098 DOI: 10.1002/psc.3274] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/16/2020] [Accepted: 06/12/2020] [Indexed: 12/24/2022]
Abstract
Estrogen sulfotransferase (SULT1E) mainly catalyzes the sulfation of estrogens, which are known to prevent the pathogenesis of atherosclerosis. Recently, we found that peptides with a YKDG sequence specifically bind to oxidized low-density lipoprotein (Ox-LDL), which plays a major role in the pathogenesis of atherosclerosis. Here, we investigated the interaction between human SULT1E1 (hSULT1E1), which has a YKEG sequence (residues 61-64) unlike other human SULTs, and Ox-LDL. Results from polyacrylamide gel electrophoresis and western blotting demonstrated that hSULT1E1 specifically binds to Ox-LDL and its major lipid component (lysophosphatidylcholine; LPC), and platelet-activating factor (PAF), which bears a marked resemblance to LPC in terms of structure and activity. Moreover, an N-terminally fluorescein isothiocyanate (FITC)-labeled decapeptide (MIYKEGDVEK; FITC-hSULT1E1-P10) corresponding to residues 59-68 of hSULT1E1 specifically binds to Ox-LDL, LPC, and PAF. Unveiling the specific interaction between hSULT1E1 and Ox-LDL, LPC, and PAF provides important information regarding the mechanisms underlying various diseases caused by Ox-LDL, LPC, and PAF, such as atherosclerosis. In addition, FITC-hSULT1E1-P10 could be used as an efficient fluorescent probe for the detection of Ox-LDL, LPC, and PAF, which could facilitate the mechanistic study, identification, diagnosis, prevention, and treatment of atherosclerosis.
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Affiliation(s)
- Akira Sato
- Department of Pharmaceutical Health Science, Faculty of Pharmacy, Iryo Sosei University, Iwaki, Fukushima, Japan.,Graduate School of Life Science and Technology, Iryo Sosei University, Iwaki, Fukushima, Japan
| | - Miyuki Yamazaki
- Department of Pharmaceutical Health Science, Faculty of Pharmacy, Iryo Sosei University, Iwaki, Fukushima, Japan
| | - Hinako Watanabe
- Department of Pharmaceutical Health Science, Faculty of Pharmacy, Iryo Sosei University, Iwaki, Fukushima, Japan
| | - Eiko Sakurai
- Department of Pharmaceutical Health Science, Faculty of Pharmacy, Iryo Sosei University, Iwaki, Fukushima, Japan.,Graduate School of Life Science and Technology, Iryo Sosei University, Iwaki, Fukushima, Japan
| | - Keiichi Ebina
- Department of Pharmaceutical Health Science, Faculty of Pharmacy, Iryo Sosei University, Iwaki, Fukushima, Japan.,Graduate School of Life Science and Technology, Iryo Sosei University, Iwaki, Fukushima, Japan
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Sato A, Ebina K. A biotinylated peptide, BP21, alleviates hypotension in anaphylactic mice. J Pept Sci 2019; 25:e3197. [PMID: 31264321 DOI: 10.1002/psc.3197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/24/2019] [Accepted: 05/27/2019] [Indexed: 11/05/2022]
Abstract
Platelet-activating factor (PAF) is known as an important mediator of anaphylaxis and, therefore, may possibly serve as a direct target for anti-anaphylactic drugs. We recently reported that a synthetic N-terminally biotinylated peptide, BP21, alleviates hypothermia and vascular hyperpermeability during anaphylactic reactions in a mouse model of anaphylaxis via the direct binding of a Tyr-Lys-Asp-Gly sequence in the peptide to PAF. In this study, we investigated the effect of BP21 on in vivo anaphylactic hypotension. Results showed that BP21 significantly inhibited anaphylactic hypotension in a dose-dependent manner, with peak severity being reached within 20 minutes. Adrenaline, which is the recommended first line treatment for anaphylactic patients, did not inhibit anaphylactic hypothermia. The combined administration of BP21 with adrenaline inhibited both hypotension and hypothermia, even at both low doses, more effectively compared with solo administration of BP21 or adrenaline. These results suggested that BP21 could potentially be a novel anti-anaphylactic agent for targeting PAF in vivo.
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Affiliation(s)
- Akira Sato
- Faculty of Pharmacy, Iryo Sosei (former Iwaki Meisei) University, Fukushima, Japan
| | - Keiichi Ebina
- Faculty of Pharmacy, Iryo Sosei (former Iwaki Meisei) University, Fukushima, Japan
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