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Corpstein CD, Hou P, Park K, Li T. Multiphysics Simulation of Local Transport and Absorption Coupled with Pharmacokinetic Modeling of Systemic Exposure of Subcutaneously Injected Drug Solution. Pharm Res 2023; 40:2873-2886. [PMID: 37344601 DOI: 10.1007/s11095-023-03546-5] [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: 03/22/2023] [Accepted: 06/02/2023] [Indexed: 06/23/2023]
Abstract
INTRODUCTION Subcutaneous (SC) injectables have become more acceptable and feasible for administration of biologics and small molecules. However, efficient development of these products is limited to costly and time-consuming techniques, partially because absorption mechanisms and kinetics at the local site of injection remain poorly understood. OBJECTIVE To bridge formulation critical quality attributes (CQA) of injectables with local physiological conditions to predict systemic exposure of these products. METHODOLOGY We have previously developed a multiscale, multiphysics computational model to simulate lymphatic absorption and whole-body pharmacokinetics of monoclonal antibodies. The same simulation framework was applied in this study to compute the capillary absorption of solubilized small molecule drugs that are injected subcutaneously. Sensitivity analyses were conducted to probe the impact by key simulation parameters on the local and systemic exposures. RESULTS This framework was capable of determining which parameters had the biggest impact on small molecule absorption in the SC. Particularly, membrane permeability of a drug was found to have the biggest impact on drug absorption kinetics, followed by capillary density and drug diffusivity. CONCLUSION Our modelling framework proved feasible in predicting local transport and systemic absorption from the injection site of small molecules. Understanding the effect of these properties and how to model them may help to greatly expedite the development process.
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Affiliation(s)
- Clairissa D Corpstein
- Department of Industrial and Physical Pharmacy, Purdue University, 525 Stadium Mall Dr. RHPH Building, West Lafayette, Indiana, IN, 47907, USA
| | - Peng Hou
- Department of Industrial and Physical Pharmacy, Purdue University, 525 Stadium Mall Dr. RHPH Building, West Lafayette, Indiana, IN, 47907, USA
| | - Kinam Park
- Department of Industrial and Physical Pharmacy, Purdue University, 525 Stadium Mall Dr. RHPH Building, West Lafayette, Indiana, IN, 47907, USA
| | - Tonglei Li
- Department of Industrial and Physical Pharmacy, Purdue University, 525 Stadium Mall Dr. RHPH Building, West Lafayette, Indiana, IN, 47907, USA.
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Xing M, Jiang Y, Bi W, Gao L, Zhou YL, Rao SL, Ma LL, Zhang ZW, Yang HT, Chang J. Strontium ions protect hearts against myocardial ischemia/reperfusion injury. SCIENCE ADVANCES 2021; 7:7/3/eabe0726. [PMID: 33523909 PMCID: PMC7810382 DOI: 10.1126/sciadv.abe0726] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/20/2020] [Indexed: 05/06/2023]
Abstract
Timely restoration of blood supply following myocardial infarction is critical to save the infarcted myocardium, while reperfusion would cause additional damage. Strontium ions have been shown to promote angiogenesis, but it is unknown whether they can save the damaged myocardium. We report that myocardial ischemia/reperfusion (I/R)-induced functional deterioration and scar formation were notably attenuated by injection of strontium ion-containing composite hydrogels into murine infarcted myocardium at 20 minutes of reperfusion following 60 minutes of ischemia. These beneficial effects were accompanied by reduced cardiomyocyte apoptosis and increased angiogenesis. The effects of strontium ions were further confirmed by the enhanced viability of cardiomyocytes and stimulated angiogenesis in vitro. These findings are the first to reveal the cardioprotective effects of strontium ions against I/R injury, which may provide a new therapeutic approach to ischemic heart disease at a lower cost, with higher stability, and with potentially greater safety.
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Affiliation(s)
- Min Xing
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences (CAS), Shanghai 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of CAS, Beijing 100049, P. R. China
| | - Yun Jiang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Laboratory of Molecular Cardiology, Shanghai Institute of Nutrition and Health, CAS, Shanghai 200030, P. R. China
- University of CAS, 19 Yuquan Road, Beijing 100049, P. R. China
| | - Wei Bi
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Laboratory of Molecular Cardiology, Shanghai Institute of Nutrition and Health, CAS, Shanghai 200030, P. R. China
- University of CAS, 19 Yuquan Road, Beijing 100049, P. R. China
| | - Long Gao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences (CAS), Shanghai 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of CAS, Beijing 100049, P. R. China
| | - Yan-Ling Zhou
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences (CAS), Shanghai 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of CAS, Beijing 100049, P. R. China
| | - Sen-Le Rao
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Laboratory of Molecular Cardiology, Shanghai Institute of Nutrition and Health, CAS, Shanghai 200030, P. R. China
- University of CAS, 19 Yuquan Road, Beijing 100049, P. R. China
| | - Ling-Ling Ma
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences (CAS), Shanghai 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of CAS, Beijing 100049, P. R. China
| | - Zhao-Wenbin Zhang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences (CAS), Shanghai 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of CAS, Beijing 100049, P. R. China
| | - Huang-Tian Yang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Laboratory of Molecular Cardiology, Shanghai Institute of Nutrition and Health, CAS, Shanghai 200030, P. R. China.
- University of CAS, 19 Yuquan Road, Beijing 100049, P. R. China
- Institute for Stem Cell and Regeneration, CAS, Beijing 100101, China
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences (CAS), Shanghai 200050, P. R. China.
- Center of Materials Science and Optoelectronics Engineering, University of CAS, Beijing 100049, P. R. China
- Institute for Stem Cell and Regeneration, CAS, Beijing 100101, China
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Helton ES, Palladino S, Ubogu EE. A novel method for measuring hydraulic conductivity at the human blood-nerve barrier in vitro. Microvasc Res 2016; 109:1-6. [PMID: 27592219 DOI: 10.1016/j.mvr.2016.08.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 08/30/2016] [Accepted: 08/31/2016] [Indexed: 01/12/2023]
Abstract
Microvascular barrier permeability to water is an essential biophysical property required for the homeostatic maintenance of unique tissue microenvironments. This is of particular importance in peripheral nerves where strict control of ionic concentrations is needed for axonal signal transduction. Previous studies have associated inflammation, trauma, toxin exposure and metabolic disease with increases in water influx and hydrostatic pressure in peripheral nerves with resultant endoneurial edema that may impair axonal function. The regulation of water permeability across endoneurial microvessels that form the blood-nerve barrier (BNB) is poorly understood. Variations exist in apparatus and methods used to measure hydraulic conductivity. The objective of the study was to develop a simplified hydraulic conductivity system using commercially available components to evaluate the BNB. We determined the mean hydraulic conductivity of cultured confluent primary and immortalized human endoneurial endothelial cell layers as 2.00×10-7 and 2.17×10-7cm/s/cm H₂O respectively, consistent with restrictive microvascular endothelial cells in vitro. We also determined the mean hydraulic conductivity of immortalized human brain microvascular endothelial cell layers, a commonly used blood-brain barrier (BBB) cell line, as 0.20×10-7cm/s/cm H₂O, implying a mean 10-fold higher resistance to transendothelial water flux in the brain compared to peripheral nerves. To our knowledge, this is the first reported measurement of human BNB and BBB hydraulic conductivities. This model represents an important tool to further characterize the human BNB and deduce the molecular determinants and signaling mechanisms responsible for BNB hydraulic conductivity in normal and disease states in vitro.
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Affiliation(s)
- E Scott Helton
- Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Steven Palladino
- Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Eroboghene E Ubogu
- Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, United States.
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Mathura RA, Russell-Puleri S, Cancel LM, Tarbell JM. Hydraulic Conductivity of Smooth Muscle Cell-Initiated Arterial Cocultures. Ann Biomed Eng 2015; 44:1721-33. [PMID: 26265460 DOI: 10.1007/s10439-015-1421-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 08/07/2015] [Indexed: 01/18/2023]
Abstract
The purpose of the study was to examine the effects of arterial coculture conditions on the transport properties of several in vitro endothelial cell (EC)-smooth muscle cell (SMC)-porous filter constructs in which SMC were grown to confluence first and then EC were inoculated. This order of culturing simulates the environment of a blood vessel wall after endothelial layer damage due to stenting, vascular grafting or other vascular wall insult. For all coculture configurations examined, we observed that hydraulic conductivity (L(p)) values were significantly higher than predicted by a resistances-in-series (RIS) model accounting for the L(p) of EC and SMC measured separately. The greatest increases were observed when EC were plated directly on top of a confluent SMC layer without an intervening filter, presumably mediated by direct EC-SMC contacts that were observed under confocal microscopy. The results are the opposite of a previous study that showed L(p) was significantly reduced compared to an RIS model when EC were grown to confluency first. The physiological, pathophysiological and tissue engineering implications of these results are discussed.
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Affiliation(s)
- Rishi A Mathura
- Department of Biomedical Engineering, The City College of New York, New York, NY, 10031, USA
| | - Sparkle Russell-Puleri
- Department of Biomedical Engineering, The City College of New York, New York, NY, 10031, USA
| | - Limary M Cancel
- Department of Biomedical Engineering, The City College of New York, New York, NY, 10031, USA
| | - John M Tarbell
- Department of Biomedical Engineering, The City College of New York, New York, NY, 10031, USA.
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