期刊
TISSUE ENGINEERING PART A
卷 27, 期 15-16, 页码 1008-1022出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/ten.tea.2020.0142
关键词
extracellular matrix; mast cell; allergy; metabolism
资金
- UNC-CH/NCSU Joint Department of Biomedical Engineering and its Abrams Scholar Program
- NCSU Office of Undergraduate Research (OUR)
- NCSU Office of Undergraduate Research (OUR), NCSU Center for Human Health and the Environment (NIH, NIEHS) [P30ES025128]
- Comparative Medicine Institute (CMI) at NCSU
- CMI's Summer Interdisciplinary Research Initiative (SIRI)
- Comparative Medicine and Translational Research Training Program (CMTRTP) [NIH 2T32OD011130-11]
- NIH, NIAID [R01AI143985]
- Young Scholar Award (YSA)
Mast cells are pro-inflammatory tissue-resident immune cells that play a key role in inflammation and show significant variability in response to environmental stimuli due to in situ maturation in tissue. Studying mature tissue-derived MCs in humans poses challenges, but using decellularized ECM scaffolds can provide a more physiologically relevant environment for culture.
Mast cells (MCs) are pro-inflammatory tissue-resident immune cells that play a key role in inflammation. MCs circulate in peripheral blood as progenitors and undergo terminal differentiation in the tissue microenvironment where they can remain for many years. This in situ maturation results in tissue- and species-specific MC phenotypes, culminating in significant variability in response to environmental stimuli. There are many challenges associated with studying mature tissue-derived MCs, particularly in humans. In cases where cultured MCs are able to differentiate in two-dimensional in vitro cultures, there remains an inability for full maturation. Extracellular matrix (ECM) scaffolds provide for a more physiologically relevant environment for cells in vitro and have been shown to modulate the response of other immune cells such as T cells, monocytes, and macrophages. To improve current in vitro testing platforms of MCs and to assess future use of ECM scaffolds for MC regulation, we studied the in vitro response of human MCs cultured on decellularized porcine dermis hydrogels (dermis extracellular matrix hydrogel [dECM-H]). This study investigated the effect of dECM-H on cellular metabolic activity, cell viability, and receptor expression compared to collagen type I hydrogel (Collagen-H). Human MCs showed different metabolic activity when cultured in the dECM-H and also upregulated immunoglobulin E (IgE) receptors associated with MC maturation/activation compared to collagen type I. These results suggest an overall benefit in the long-term culture of human MCs in the dECM-H compared to Collagen-H providing important steps toward a model that is more representative of in vivo conditions.
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