Peptide-based self-assembling delivery system for development of group A streptococcus vaccine

2018 ◽  
Author(s):  
Guangzu Zhao
2019 ◽  
Vol 10 (9) ◽  
pp. 1253-1259 ◽  
Author(s):  
Armira Azuar ◽  
Lili Zhao ◽  
Tsui Ting Hei ◽  
Reshma J. Nevagi ◽  
Stacey Bartlett ◽  
...  

2011 ◽  
Vol 7 (2) ◽  
pp. 168-173 ◽  
Author(s):  
Mehfuz Zaman ◽  
Mariusz Skwarczynski ◽  
Jessica M. Malcolm ◽  
Carl N. Urbani ◽  
Zhongfan Jia ◽  
...  

2016 ◽  
Vol 513 (1-2) ◽  
pp. 410-420 ◽  
Author(s):  
Nirmal Marasini ◽  
Zeinab G. Khalil ◽  
Ashwini Kumar Giddam ◽  
Khairunnisa Abdul Ghaffar ◽  
Waleed M. Hussein ◽  
...  

Vaccines ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 499
Author(s):  
Jieru Yang ◽  
Farrhana Firdaus ◽  
Armira Azuar ◽  
Zeinab G. Khalil ◽  
Nirmal Marasini ◽  
...  

Peptide-based vaccine development represents a highly promising strategy for preventing Group A Streptococcus (GAS) infection. However, these vaccines need to be administered with the help of a delivery system and/or immune adjuvant. Cell-penetrating peptides (CPPs) have been used as a powerful tool for delivering various therapeutic agents, including peptides, as they can overcome the permeability barrier of cell membranes. Here, we used CPPs to deliver our lead lipopeptide-based vaccine (LCP-1). CPPs were anchored through a spacer to LCP-1-bearing multilamellar and unilamellar liposomes and administered to Swiss outbred mice. Tat47–57 conjugated to two palmitic acids via a (Gly)6 spacer (to form a liposome-anchoring moiety) was the most efficient system for triggering immune responses when combined with multilamellar liposomes bearing LCP-1. The immunostimulatory potential of a variety of other CPPs was examined following intranasal administration in mice. Among them, LCP-1/liposomes/Tat47–57 and LCP-1/liposomes/KALA induced the highest antibody titers. The antibodies produced showed high opsonic activity against clinically isolated GAS strains D3840 and GC2 203. The use of the CPP-liposome delivery system is a promising strategy for liposome-based GAS vaccine development.


2017 ◽  
Vol 14 (5) ◽  
Author(s):  
Nirmal Marasini ◽  
Khairunnisa Abdul Ghaffar ◽  
Ashwini Kumar Giddam ◽  
Michael R. Batzloff ◽  
Michael F. Good ◽  
...  

2020 ◽  
pp. 64-70
Author(s):  
Anastasiya Laknitskaya

Currently, one of the priority medical and social problems is the optimization of treatment methods for pyoderma associated with Streptococcus pyogenes — group A streptococcus (GAS). To date, the proportion of pyoderma, the etiological factor of which is Streptococcus pyogenes, is about 6 % of all skin diseases and is in the range from 17.9 to 43.9 % of all dermatoses. Role of the bacterial factor in the development of streptococcal pyoderma is obvious. Traditional treatment complex includes antibacterial drugs selected individually, taking into account the antibiotic sensitivity of pathognomonic bacteria, and it is not always effective. Currently implemented immunocorrection methods often do not take into account specific immunological features of the disease, the individual, and the fact that the skin performs the function of not only a mechanical barrier, but it is also an immunocompetent organ. Such an approach makes it necessary to conduct additional studies clarifying the role of factors of innate and adaptive immunity, intercellular mediators and antioxidant defense system, that allow to optimize the treatment of this pathology.


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