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Commey KL, Enaka A, Nakamura R, Yamamoto A, Tsukigawa K, Nishi K, Otagiri M, Yamasaki K. 7-Phenylheptanoic Acid-Hydroxypropyl β-Cyclodextrin Complex Slows the Progression of Renal Failure in Adenine-Induced Chronic Kidney Disease Mice. Toxins (Basel) 2024; 16:316. [PMID: 39057956 PMCID: PMC11281668 DOI: 10.3390/toxins16070316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/27/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024] Open
Abstract
The characteristic accumulation of circulating uremic toxins, such as indoxyl sulfate (IS), in chronic kidney disease (CKD) further exacerbates the disease progression. The gut microbiota, particularly gut bacterial-specific enzymes, represents a selective and attractive target for suppressing uremic toxin production and slowing the progression of renal failure. This study investigates the role of 4-phenylbutyrate (PB) and structurally related compounds, which are speculated to possess renoprotective properties in suppressing IS production and slowing or reversing renal failure in CKD. In vitro enzyme kinetic studies showed that 7-phenylheptanoic acid (PH), a PB homologue, suppresses the tryptophan indole lyase (TIL)-catalyzed decomposition of tryptophan to indole, the precursor of IS. A hydroxypropyl β-cyclodextrin (HPβCD) inclusion complex formulation of PH was prepared to enhance its biopharmaceutical properties and to facilitate in vivo evaluation. Prophylactic oral administration of the PH-HPβCD complex formulation reduced circulating IS and attenuated the deterioration of renal function and tubulointerstitial fibrosis in adenine-induced CKD mice. Additionally, treatment of moderately advanced adenine-induced CKD mice with the formulation ameliorated renal failure, although tissue fibrosis was not improved. These findings suggest that PH-HPβCD can slow the progression of renal failure and may have implications for preventing or managing CKD, particularly in early-stage disease.
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Affiliation(s)
- Kindness Lomotey Commey
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (M.O.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Airi Enaka
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (M.O.)
| | - Ryota Nakamura
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (M.O.)
| | - Asami Yamamoto
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (M.O.)
| | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (M.O.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (M.O.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (M.O.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (M.O.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
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Commey KL, Enaka A, Nakamura R, Yamamoto A, Tsukigawa K, Nishi K, Iohara D, Hirayama F, Otagiri M, Yamasaki K. Development of α-Cyclodextrin-Based Orally Disintegrating Tablets for 4-Phenylbutyrate. Pharmaceutics 2024; 16:82. [PMID: 38258093 PMCID: PMC10818935 DOI: 10.3390/pharmaceutics16010082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
Despite major improvements brought about by the introduction of taste-masked formulations of 4-phenylbutyrate (PB), poor compliance remains a significant drawback to treatment for some pediatric and dysphagic patients with urea cycle disorders (UCDs). This study reports on the development of a cyclodextrin (CD)-based orally disintegrating tablet (ODT) formulation for PB as an alternative to existing formulations. This is based on previous reports of the PB taste-masking potential of CDs and the suitability of ODTs for improving compliance in pediatric and dysphagic populations. In preliminary studies, the interactions of PB with α and βCD in the solid state were characterized using X-ray diffraction, scanning electron microscopy, dissolution, and accelerated stability studies. Based on these studies, lyophilized PB-CD solid systems were formulated into ODTs after wet granulation. Evaluation of the ODTs showed that they had adequate physical characteristics, including hardness and friability and good storage stability. Notably, the developed αCD-based ODT for PB had a disintegration time of 28 s and achieved a slightly acidic and agreeable pH (≈5.5) in solution, which is suitable for effective PB-CD complexation and taste masking. The developed formulation could be helpful as an alternative to existing PB formulations, especially for pediatric and dysphagic UCD patients.
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Affiliation(s)
- Kindness L. Commey
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Airi Enaka
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
| | - Ryota Nakamura
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
| | - Asami Yamamoto
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
| | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Daisuke Iohara
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Fumitoshi Hirayama
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
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