Preparation of bacterial outer membrane vesicle coated nanoparticle loaded with drug and evaluation of its nasal immune effect in mice / 上海交通大学学报(医学版)
Journal of Shanghai Jiaotong University(Medical Science)
;
(12): 155-160, 2018.
Article
in Chinese
| WPRIM
| ID: wpr-843773
ABSTRACT
Objective:
To prepare a bacterial outer membrane vesicle (OMV) coated poly (lactic-co-glycolic acid) copolymer (PLGA) nanoparticle loaded with ovalbumin (OVA) and evaluate its intranasal immune effect in mice.Methods:
OMV was prepared by ultrafiltration concentration method. OVA loaded PLGA nanoparticle (NP) was prepared by emulsion-solvent evaporation method. OMV coated PLGA nanoparticle (OMV-PLGA NP) loaded with OVA was prepared by extrusion method and characterized. BALB/c mice were intranasally immunized and specific sIgA levels in nasal wash, jejunum and fecal pellet were determined by ELISA.Results:
Size of OVA loaded OMV-PLGA NP was (234.4±22.9) nm. The shell-core structure of OVA loaded OMV-PLGA NP was proved by transmission electron microscope. After 14 d of administration, sIgA antibody levels in nasal wash, jejunum and fecal pellet of OVA loaded OMV-PLGA NP treated group were the highest in all treated groups. Compared with the group treated with OMV and OVA, OVA-specific sIgA antibody level in nasal wash, jejunum and fecal pellet of OVA loaded OMV-PLGA NP treated group was increased 1.6, 2.1 and 1.7 times, respectively. Compared with the group treated with OMV and OVA, OMV-specific sIgA antibody level in nasal wash, jejunum and fecal pellet of OVA loaded OMV-PLGA NP treated group was all increased 1.5 times.Conclusion:
This novel nanoparticle drug delivery system can simultaneously delivery OVA and OMV to antigen presenting cells, resulting in stronger mucosal immune response in mice.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Journal of Shanghai Jiaotong University(Medical Science)
Year:
2018
Type:
Article
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