Human Placental Mast Cells as an In Vitro Model System in Aspects of Neuro-Immunotoxicity Testing
| Autor: | C.K. Atterwill, W.M. Purcell |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
0301 basic medicine
medicine.medical_specialty Placenta Health Toxicology and Mutagenesis Neurotoxins Toxicology Histamine Release Models Biological Xenobiotics 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Neurotrophic factors Internal medicine medicine Humans Secretion Mast Cells Nerve Growth Factors Receptor Cells Cultured 030102 biochemistry & molecular biology biology Temperature General Medicine Hydrogen-Ion Concentration Mast cell In vitro Cell biology Endocrinology Nerve growth factor medicine.anatomical_structure chemistry 030220 oncology & carcinogenesis biology.protein Calcium Female Histamine Neurotrophin |
| Zdroj: | Human & Experimental Toxicology. 13:429-433 |
| ISSN: | 1477-0903 0960-3271 |
| DOI: | 10.1177/096032719401300611 |
| Popis: | 1 In both the developing and adult nervous systems, nerve growth factor (NGF) influences neuronal survival, differentiation and recovery following insult, 2 The effect of NGF upon human placental mast cells (HPMC) was investigated, since it is known that rodent mast cells express a functional receptor for NGF and secrete histamine upon challenge with this neurotrophic factor. Furthermore, human placental tissue contains a significant amount of NGF and expresses a NGF receptor. 3 HPMC were shown to secrete histamine in a concentration dependent manner in response to NGF (0.001-10.0 μg ml-1) in the presence of the lipid cofactor phosphatidylserine (10.0 μg ml-1). 4 NGF induced histamine release from isolated HPMC with an EC50 of 0.1 μg ml -1 NGF and maximal secretion of total cellular histamine of 22.3 ± 3.4% at 3.0 μg ml-1. 5 The response was shown to be a secretory process, dependent upon the presence of exogenous calcium ions and to be pH- and temperature-sensitive. 6 HPMC are suggested to be a suitable primary cell model for use in aspects of in vitro toxicity testing, in terms of assessing the neuro-immunotoxic potential of neurotrophic therapeutics. In addition, mechanistic studies concerning those xenobiotics which may exert their neurotoxic effect via interaction with neurotrophic factors and, or their receptors, may be studied in this human cell model. |
| Databáze: | OpenAIRE |
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