Immunotherapeutic effect of BCG-polysaccharide nucleic acid powder on Mycobacterium tuberculosis-infected mice using microneedle patches

Bibliographic Details
Title: Immunotherapeutic effect of BCG-polysaccharide nucleic acid powder on Mycobacterium tuberculosis-infected mice using microneedle patches
Authors: Qinying Yan, Houming Liu, Zhigang Cheng, Yun Xue, Zhide Cheng, Xuyong Dai, Wanshui Shan, Fan Chen
Source: Drug Delivery, Vol 24, Iss 1, Pp 1648-1653 (2017)
Publisher Information: Taylor & Francis Group, 2017.
Publication Year: 2017
Collection: LCC:Therapeutics. Pharmacology
Subject Terms: immunotherapy, bcg-psn, tuberculosis, powder, microneedle patch, Therapeutics. Pharmacology, RM1-950
More Details: Polysaccharide nucleic acid fractions of bacillus Calmette–Guérin, termed BCG-PSN, have traditionally been used as immunomodulators in the treatment of dermatitis and allergic diseases. While the sales of injectable BCG-PSN have shown steady growth in recent years, no reports of using BCG-PSN powder or its immunotherapeutic effects exist. Here, BCG-PSN powder was applied directly to the skin to evaluate the immunotherapeutic effects on mice infected with Mycobacterium tuberculosis (MTB). In total, 34 μg of BCG-PSN powder could be loaded into a microneedle patch (MNP). Mice receiving BCG-PSN powder delivered via MNP exhibited significantly increased IFN-γ and TNF-α production in peripheral blood CD4 + T cells and improved pathological changes in their lungs and spleens compared to control group mice. The immunotherapeutic effect of BCG-PSN powder delivered via MNP was better than that delivered via intramuscular injection to some extent. Furthermore, MNPs eliminate the side effects of syringes, and this study demonstrated that BCG-PSN can be clinically administrated in powder form.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1071-7544
1521-0464
10717544
Relation: https://doaj.org/toc/1071-7544; https://doaj.org/toc/1521-0464
DOI: 10.1080/10717544.2017.1391892
Access URL: https://doaj.org/article/7764091b86bc41368a7dd236ecd39e0b
Accession Number: edsdoj.7764091b86bc41368a7dd236ecd39e0b
Database: Directory of Open Access Journals
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More Details
ISSN:10717544
15210464
DOI:10.1080/10717544.2017.1391892
Published in:Drug Delivery
Language:English