Dynamics of Intrinsic Glucose Uptake Kinetics in Human Mesenchymal Stem Cells During Chondrogenesis
| العنوان: | Dynamics of Intrinsic Glucose Uptake Kinetics in Human Mesenchymal Stem Cells During Chondrogenesis |
|---|---|
| المؤلفون: | Harihara Baskaran, Kuo Chen Wang, Mostafa Motavalli, Arnold I. Caplan, Yi Zhong, Jean F. Welter |
| المصدر: | Annals of Biomedical Engineering. 46:1896-1910 |
| بيانات النشر: | Springer Science and Business Media LLC, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | 0301 basic medicine, medicine.medical_specialty, Glucose uptake, 0206 medical engineering, Kinetics, Biomedical Engineering, 02 engineering and technology, Models, Biological, Michaelis–Menten kinetics, Article, Extracellular matrix, 03 medical and health sciences, Internal medicine, medicine, Humans, Cells, Cultured, Chemistry, Cartilage, Dynamics (mechanics), Mesenchymal stem cell, Mesenchymal Stem Cells, Chondrogenesis, 020601 biomedical engineering, Glucose, 030104 developmental biology, Endocrinology, medicine.anatomical_structure |
| الوصف: | Chondrogenesis of human mesenchymal stem cells (hMSCs) is an important biological process in many applications including cartilage tissue engineering. We investigated the glucose uptake characteristics of aggregates of hMSCs undergoing chondrogenesis over a three-week period both experimentally and by using a mathematical model. Initial concentrations of glucose in the medium were varied from 1 to 4.5 g/l to mimic limiting conditions and glucose uptake profiles were obtained. A reaction-diffusion mathematical model was implemented and solved to estimate kinetic parameters. Experimental glucose uptake rates increased with culture time for aggregates treated with higher initial glucose concentrations (3 and 4.5 g/l), whereas they decreased or remained constant for those treated with lower initial glucose concentrations (1 and 2 g/l). Lactate production rate increased by as much as 40% for aggregates treated with higher initial glucose concentrations (2, 3 and 4.5 g/l), whereas it remained constant for those treated with 1 g/l initial glucose concentration. The estimated DNA-normalized maximum glucose uptake rate decreased by a factor of 9 from Day 0–2 (12.5 mmoles/sec/g DNA) to Day 6–8 (1.5 mmoles/sec/g DNA), after which it started to increase. On Day 18–20, its value (17.5 mmoles/sec/g DNA) was about 11 times greater than its lowest value. Further, the extracellular matrix levels of aggregates at Day 14 and Day 21 correlated with their overall glucose uptake and lactate production. The results suggest that during chondrogenesis, for optimal results, cells require increasing amounts of glucose. Our results also suggest that diffusion limitations play an important role in glucose uptake even in the smaller size aggregate model of chondrogenesis. Further, the results indicate that glucose uptake or lactate production can be a tool for predicting the end quality of tissue during the process of chondrogenesis. The estimated kinetic parameters can be used to model glucose requirements in cartilage tissue engineering applications. |
| تدمد: | 1573-9686 0090-6964 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30291a59b883fa3e8b07f24bcb568642 https://doi.org/10.1007/s10439-018-2067-x |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....30291a59b883fa3e8b07f24bcb568642 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15739686 00906964 |
|---|