Growing Human Parathyroids in a Microphysiological System: A Novel Approach to Understanding and Developing New Treatments for Hyperparathyroidism.
Cells Tissues Organs
; 206(1-2): 54-61, 2018.
Article
em En
| MEDLINE
| ID: mdl-30466097
ABSTRACT
We developed a novel model for studying hyperparathyroidism by growing ex vivo 3-dimensional human parathyroids as part of a microphysiological system (MPS) that mimics human physiology. The purpose of this study was to validate the parathyroid portion of the MPS. We prospectively collected parathyroid tissue from 46 patients with hyperparathyroidism for growth into pseudoglands. We evaluated pseudogland architecture and calcium responsiveness. Following 2 weeks in culture, dispersed cells successfully coalesced into pseudoglands â¼500-700 µm in diameter that mimicked the appearance of normal parathyroid glands. Functionally, they also appeared similar to intact parathyroids in terms of organization and calcium-sensing receptor expression. Immunohistochemical staining for calcium-sensing receptor revealed 240-450/cell units of mean fluorescence intensity within the pseudoglands. Finally, the pseudoglands showed varying levels of calcium responsiveness, indicated by changes in parathyroid hormone (PTH) levels. In summary, we successfully piloted the development of a novel MPS for studying the effects of hyperparathyroidism on human organ systems. We are currently evaluating the effect of PTH on adverse remodeling of tissue engineered cardiac, skeletal, and bone tissue within the MPS.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Técnicas de Cultura de Órgãos
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Glândulas Paratireoides
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Organoides
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Hiperparatireoidismo
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article