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Kawakami K, Ohya M, Yashiro M, Sonou T, Yamamoto S, Nakashima Y, Yano T, Tanaka Y, Ishida K, Kobashi S, Shigematsu T, Araki SI. Bisphosphonate FYB-931 Prevents High Phosphate-Induced Vascular Calcification in Rat Aortic Rings by Altering the Dynamics of the Transformation of Calciprotein Particles. Calcif Tissue Int 2023:10.1007/s00223-023-01086-z. [PMID: 37099142 DOI: 10.1007/s00223-023-01086-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 04/15/2023] [Indexed: 04/27/2023]
Abstract
Patients with chronic kidney disease develop vascular calcification, owing to impaired calcium and phosphate metabolism. The prevention of vascular calcification is important to improve the prognosis of such patients. In this study, we investigated whether treatment with FYB-931, a novel bisphosphonate compound, prevents vascular calcification in rat aortic rings cultured in high-phosphate medium for 9 days, assessed by measurement of the calcium content and the degree of calcium deposition, visualized using von Kossa staining. The effect on the transformation of calciprotein particles (CPPs) from primary to secondary CPPs was assessed using a fluorescent probe-based flow cytometric assay. FYB-931 dose-dependently prevented high phosphate-induced aortic calcification, but failed to rapidly cause the regression of high phosphate-induced vascular calcification once it had developed. Furthermore, the treatment dose-dependently inhibited the high phosphate-induced transformation from primary to secondary CPPs. In addition, the treatment with FYB-931 prevented the transformation from primary to secondary CPPs in vitamin D3-treated rats as a model of ectopic calcification, consistent with the results from rat aortic rings. In conclusion, treatment with FYB-931 prevents high phosphate-induced rat aortic vascular calcification by altering the dynamics of CPP transformation. This finding suggests that inhibition of the transformation from primary to secondary CPPs is an important target for the prevention of vascular calcification in patients with chronic kidney disease.
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Affiliation(s)
- Kazuki Kawakami
- Department of Nephrology, Wakayama Medical University, 811-1 Kimiidera, Wakayama, Wakayama, 641-8509, Japan
| | - Masaki Ohya
- Department of Nephrology, Wakayama Medical University, 811-1 Kimiidera, Wakayama, Wakayama, 641-8509, Japan.
| | - Mitsuru Yashiro
- Department of Nephrology, Wakayama Medical University, 811-1 Kimiidera, Wakayama, Wakayama, 641-8509, Japan
| | - Tomohiro Sonou
- Department of Nephrology, Wakayama Medical University, 811-1 Kimiidera, Wakayama, Wakayama, 641-8509, Japan
| | - Shuto Yamamoto
- Department of Nephrology, Wakayama Medical University, 811-1 Kimiidera, Wakayama, Wakayama, 641-8509, Japan
| | - Yuri Nakashima
- Department of Nephrology, Wakayama Medical University, 811-1 Kimiidera, Wakayama, Wakayama, 641-8509, Japan
| | - Takuro Yano
- Department of Nephrology, Wakayama Medical University, 811-1 Kimiidera, Wakayama, Wakayama, 641-8509, Japan
| | - Yusuke Tanaka
- Department of Nephrology, Wakayama Medical University, 811-1 Kimiidera, Wakayama, Wakayama, 641-8509, Japan
| | - Koichi Ishida
- Medical R&D Division, Fuji Yakuhin Co. Ltd, Laboratory 2, Iidashinden, Nishi-ku, Saitama, Saitama, 331-0068, Japan
| | - Seiichi Kobashi
- Medical R&D Division, Fuji Yakuhin Co. Ltd, Laboratory 1, Nishiomiya, Nishi-ku, Saitama, Saitama, 331-0078, Japan
| | - Takashi Shigematsu
- Department of Nephrology, Wakayama Medical University, 811-1 Kimiidera, Wakayama, Wakayama, 641-8509, Japan
- Department of Nephrology, Rinku General Medical Center, Izumisano, Osaka, 598-8577, Japan
| | - Shin-Ichi Araki
- Department of Nephrology, Wakayama Medical University, 811-1 Kimiidera, Wakayama, Wakayama, 641-8509, Japan
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