1
|
Hernández-Juárez C, Calahorra M, Peña A, Jiménez-Sánchez A. Fluorescent Probe as Dual-Organelle Localizer Through Differential Proton Gradients Between Lipid Droplets and Mitochondria. Anal Chem 2024; 96:9262-9269. [PMID: 38760019 PMCID: PMC11154735 DOI: 10.1021/acs.analchem.4c01703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/19/2024]
Abstract
Dual-organelle molecular localizers represent powerful new tools allowing the exploration of interorganelle physical contacts and subcellular chemical communication. Here, we describe new dynamic molecular probes to localize mitochondria and lipid droplets taking advantage of the differential proton gradients present in these organelles as well as the activity of mitochondrial esterase. We unveil their potential utility when organelle retention mechanisms and proton gradients are synchronized, an insight that has not been documented previously. Our discoveries indicate that dual-organelle probes serve as a valuable multiplexing assay during starvation-induced autophagy. The pioneering molecular mechanism they employ opens doors to avoid using labile esters such as acetoxymethyl derivatives which are not optimal in imaging microscopy assays.
Collapse
Affiliation(s)
- Cinthia Hernández-Juárez
- Instituto
de Química, Universidad Nacional Autónoma de México,
Ciudad Universitaria, Circuito Exterior s/n. Coyoacán 04510, Ciudad de México, México
| | - Martha Calahorra
- Instituto
de Fisiología Celular, Universidad Nacional Autónoma
de México, Ciudad Universitaria, Circuito Exterior s/n. Coyoacán 04510, Ciudad de México, México
| | - Antonio Peña
- Instituto
de Fisiología Celular, Universidad Nacional Autónoma
de México, Ciudad Universitaria, Circuito Exterior s/n. Coyoacán 04510, Ciudad de México, México
| | - Arturo Jiménez-Sánchez
- Instituto
de Química, Universidad Nacional Autónoma de México,
Ciudad Universitaria, Circuito Exterior s/n. Coyoacán 04510, Ciudad de México, México
| |
Collapse
|
2
|
Imai T, Isozaki M, Ohura K. Esterases Involved in the Rapid Bioconversion of Esmolol after Intravenous Injection in Humans. Biol Pharm Bull 2022; 45:1544-1552. [PMID: 36184514 DOI: 10.1248/bpb.b22-00468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Esmolol is indicated for the acute and temporary control of ventricular rate due to its rapid onset of action and elimination at a rate greater than cardiac output. This rapid elimination is achieved by the hydrolysis of esmolol to esmolol acid. It has previously been reported that esmolol is hydrolyzed in the cytosol of red blood cells (RBCs). In order to elucidate the metabolic tissues and enzymes involved in the rapid elimination of esmolol, a hydrolysis study was performed using different fractions of human blood and liver. Esmolol was slightly hydrolyzed by washed RBCs and plasma proteins while it was extensively hydrolyzed in plasma containing white blood cells and platelets. The negligible hydrolysis of esmolol in RBCs is supported by its poor hydrolysis by esterase D, the sole cytosolic esterase in RBCs. In human liver microsomes, esmolol was rapidly hydrolyzed according to Michaelis-Menten kinetics, and its hepatic clearance, calculated by the well-stirred model, was limited by hepatic blood flow. An inhibition study and a hydrolysis study using individual recombinant esterases showed that human carboxylesterase 1 isozyme (hCE1) is the main metabolic enzyme of esmolol in both white blood cells and human liver. These studies also showed that acyl protein thioesterase 1 (APT1) is involved in the cytosolic hydrolysis of esmolol in the liver. The hydrolysis of esmolol by hCE1 and APT1 also results in its pulmonary metabolism, which might be a reason for its high total clearance (170-285 mL/min/kg bodyweight), 3.5-fold greater than cardiac output (80.0 mL/min/kg bodyweight).
Collapse
Affiliation(s)
- Teruko Imai
- Graduate School of Pharmaceutical Sciences, Kumamoto University.,Daiichi University of Pharmacy
| | - Mizuki Isozaki
- Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Kayoko Ohura
- Graduate School of Pharmaceutical Sciences, Kumamoto University.,Headquarters for Admissions and Education, Kumamoto University
| |
Collapse
|
3
|
Y Alshogran O, Ghraiybah NFA, I Al-Azzam S. Evaluation of the effect of isobutyl paraben and 2-ethyl hexyl paraben on p-glycoprotein functional expression in rats: a pharmacokinetic study. Curr Mol Pharmacol 2022; 15:987-995. [PMID: 35086468 DOI: 10.2174/1874467215666220127121817] [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: 07/26/2021] [Revised: 10/05/2021] [Accepted: 10/20/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Pharmaceutical excipients have been shown to influence drug disposition through modulating transport protein. OBJECTIVES This study assessed the effect of single dose administration of parabens on the pharmacokinetics (PK) of digoxin, a probe substrate of p-glycoprotein (p-gp), in vivo. Also, the effect of multiple dosing of parabens on p-gp expression was examined. METHODS Rats were randomized into four groups that received either the vehicle, 25mg/kg verapamil, 100mg/kg isobutyl paraben, or 100mg/kg 2-ethyl hexyl paraben, which was followed by giving 0.2mg/kg digoxin via oral gavage. Blood samples were collected at different time points, digoxin concentration was measured using LC/MS-MS, and digoxin PK parameters were estimated. Another set of rats received multiple doses of parabens for 14 days which was followed by measuring intestinal and hepatic mRNA expression of p-gp using qRT-PCR. RESULTS Single dose administration of verapamil significantly increased Cmax (by 60.4%) and AUC0-t (by 61.7%) of digoxin compared to the control group, while the PK parameters of digoxin in rats exposed to parabens were not significantly different from the control. Consistently, the mRNA expression of p-gp in intestine and liver was not affected by parabens treatment. CONCLUSIONS The lack of isobutylparaben and 2-ethylhexyl paraben effect on p-gp may suggest the insignificant interaction of parabens with p-gp drug substrates, which could be of safety considerations when designing pharmaceutical formulations.
Collapse
Affiliation(s)
- Osama Y Alshogran
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Nour F Al Ghraiybah
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Sayer I Al-Azzam
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| |
Collapse
|
4
|
Stereoselective protein binding studies of 2-(2-hydroxypropanamido) benzoic acid enantiomers in rat, beagle dog and human plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1061-1062:169-175. [DOI: 10.1016/j.jchromb.2017.06.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 06/19/2017] [Accepted: 06/21/2017] [Indexed: 11/18/2022]
|
5
|
Thakare SB, Tekade PV, Pande S. Study of interactions of 2-benzamido-4-methylpentanoic acid-2-cyclohexyl carboxamide with BSA: Gel exclusion chromatography and molecular modeling techniques. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2016. [DOI: 10.1134/s1990793116030271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
6
|
Liu H, Wu PP, Yang MJ, Men L, Lin HL, Zhao YL, Tang X, Yu ZG. Application of a UPLC-MS/MS method to the protein binding study of TM-2 in rat, human and beagle dog plasma. J Pharm Anal 2015; 6:32-38. [PMID: 29403960 PMCID: PMC5762439 DOI: 10.1016/j.jpha.2015.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 07/27/2015] [Accepted: 08/07/2015] [Indexed: 11/04/2022] Open
Abstract
TM-2 known as a potential antitumor drug is a novel semi-synthetic taxane derivative. As drug–protein interactions contribute to insights into pharmacokinetic and pharmacodynamic properties, we elucidated the binding of TM-2 to plasma protein. In this study, a simple, rapid and reliable method was developed and validated employing equilibrium dialysis for the separation of bound and unbound drugs and ultra-performance liquid chromatography–tandem mass spectrometry (UPLC–MS/MS) for the quantitation. Protein binding reached equilibrium within 24 h of incubation at 37 °C. After liquid–liquid extraction with methyl tert-butyl ether, the samples were separated on Thermo Syncronis UPLC® C18 (2.1 mm×50 mm, 1.7 µm), and acquisition of mass spectrometric data was performed in multiple reaction monitoring (MRM) mode via positive electrospray ionization. The assay was linear over the concentration rang of 5–2000 ng/mL. The intra- and inter-day precisions were 0.1%–14.8%, and the accuracy was from −6.4% to 7.0%. This assay has been successfully applied to a protein binding study of TM-2 in rat, human and beagle dog plasma. TM-2 showed high protein binding of 81.4%±6.5% (rat), 87.9%±3.6% (human) and 79.4%±4.0% (beagle dog). The results revealed that there was an insignificant difference among the three species.
Collapse
Affiliation(s)
- Hui Liu
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenhe District, Shenyang 110016, China.,Yunnan Institute of Materia Medica, Lengshui Poul 24, Xishan District, Kunming, 650111, China
| | - Pan-Pan Wu
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenhe District, Shenyang 110016, China
| | - Ming-Jing Yang
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenhe District, Shenyang 110016, China
| | - Lei Men
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenhe District, Shenyang 110016, China
| | - Hong-Li Lin
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenhe District, Shenyang 110016, China
| | - Yun-Li Zhao
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenhe District, Shenyang 110016, China
| | - Xing Tang
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenhe District, Shenyang 110016, China
| | - Zhi-Guo Yu
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenhe District, Shenyang 110016, China
| |
Collapse
|
7
|
Sun JA, Kong DZ, Zhen YQ, Li Q, Zhang W, Zhang JH, Yin ZW, Ren LM. Stereoselective binding of doxazosin enantiomers to plasma proteins from rats, dogs and humans in vitro. Acta Pharmacol Sin 2013; 34:1568-74. [PMID: 24241343 DOI: 10.1038/aps.2013.120] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 08/01/2013] [Indexed: 11/09/2022] Open
Abstract
AIM (±)Doxazosin is a long-lasting inhibitor of α1-adrenoceptors that is widely used to treat benign prostatic hyperplasia and lower urinary tract symptoms. In this study we investigated the stereoselective binding of doxazosin enantiomers to the plasma proteins of rats, dogs and humans in vitro. METHODS Human, dog and rat plasma were prepared. Equilibrium dialysis was used to determine the plasma protein binding of each enantiomer in vitro. Chiral HPLC with fluorescence detection was used to measure the drug concentrations on each side of the dialysis membrane bag. RESULTS Both the enantiomers were highly bound to the plasma proteins of rats, dogs and humans [(-)doxazosin: 89.4%-94.3%; (+)doxazosin: 90.9%-95.4%]. (+)Doxazosin exhibited significantly higher protein binding capacities than (-)doxazosin in all the three species, and the difference in the bound concentration (Cb) between the two enantiomers was enhanced as their concentrations were increased. Although the percentage of the plasma protein binding in the dog plasma was significantly lower than that in the human plasma at 400 and 800 ng/mL, the corrected percentage of plasma protein binding was dog>human>rat. CONCLUSION (-)Doxazosin and (+)doxazosin show stereoselective plasma protein binding with a significant species difference among rats, dogs and humans.
Collapse
|
8
|
Chhonker YS, Kumar D, Shrivastava P, Kumar D, Singh R, Chandasana H, Bhatta RS. LC-MS/MS assay for the determination of natamycin in rabbit and human plasma: Application to a pharmacokinetics and protein binding study. J Pharm Anal 2012; 3:144-148. [PMID: 29403809 PMCID: PMC5760952 DOI: 10.1016/j.jpha.2012.11.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Accepted: 11/22/2012] [Indexed: 11/22/2022] Open
Abstract
To enable reliable quantification of natamycin in rabbit and human plasma, a validated, sensitive and selective liquid chromatography–tandem mass spectrometry assay was developed. The chromatographic separation was achieved isocratically on a Cyano column using methanol: aqueous 3.5 mM ammonium acetate (pH 4) (90:10 v/v). The assay was validated over a concentration range of 6.25–400 ng/mL with lower limit of detection of 3.12 ng/mL. Quantification was performed using the transitions 664.5→137.2m/z for natamycin and 923.5→183.4m/z for the IS. The method was validated with respect to linearity, accuracy, precision, recovery and stability. This assay has been successfully applied to a pharmacokinetic study of natamycin in NZ rabbit and plasma protein binding in human plasma.
Collapse
Affiliation(s)
- Yashpal Singh Chhonker
- CSIR-Central Drug Research Institute, Pharmacokinetics and Metabolism Division, Lucknow, UP 226001, India
| | - Devendra Kumar
- CSIR-Central Drug Research Institute, Pharmacokinetics and Metabolism Division, Lucknow, UP 226001, India
| | - Pankaj Shrivastava
- CSIR-Central Drug Research Institute, Pharmacokinetics and Metabolism Division, Lucknow, UP 226001, India
| | - Deepak Kumar
- CSIR-Central Drug Research Institute, Pharmacokinetics and Metabolism Division, Lucknow, UP 226001, India
| | - Rajbir Singh
- CSIR-Central Drug Research Institute, Pharmacokinetics and Metabolism Division, Lucknow, UP 226001, India
| | - Hardik Chandasana
- CSIR-Central Drug Research Institute, Pharmacokinetics and Metabolism Division, Lucknow, UP 226001, India
| | - Rabi Sankar Bhatta
- CSIR-Central Drug Research Institute, Pharmacokinetics and Metabolism Division, Lucknow, UP 226001, India
| |
Collapse
|