Towards Identifying Protective B-Cell Epitopes: The PspA Story

Pneumococcal surface protein A (PspA) is one of the most abundant cell surface protein of Streptococcus pneumoniae (S. pneumoniae). PspA variants are structurally and serologically diverse and help evade complement-mediated phagocytosis of S. pneumoniae, which is essential for its survival in the ho...

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Main Authors: Naeem Khan, Arif T. Jan
Format: Article
Language:English
Published: Frontiers Media S.A. 2017-05-01
Series:Frontiers in Microbiology
Subjects:
Online Access:http://journal.frontiersin.org/article/10.3389/fmicb.2017.00742/full
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author Naeem Khan
Arif T. Jan
author_facet Naeem Khan
Arif T. Jan
author_sort Naeem Khan
collection DOAJ
description Pneumococcal surface protein A (PspA) is one of the most abundant cell surface protein of Streptococcus pneumoniae (S. pneumoniae). PspA variants are structurally and serologically diverse and help evade complement-mediated phagocytosis of S. pneumoniae, which is essential for its survival in the host. PspA is currently been screened for employment in the generation of more effective (serotype independent) vaccine to overcome the limitations of polysaccharide based vaccines, providing serotype specific immune responses. The cross-protection eliciting regions of PspA localize to the α-helical and proline rich regions. Recent data indicate significant variation in the ability of antibodies induced against the recombinant PspA variants to recognize distinct S. pneumoniae strains. Hence, screening for the identification of the topographical repertoire of B-cell epitopes that elicit cross-protective immune response seems essential in the engineering of a superior PspA-based vaccine. Herein, we revisit epitope identification in PspA and the utility of hybridoma technology in directing the identification of protective epitope regions of PspA that can be used in vaccine research.
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spelling doaj.art-81271803930842a497a35b9f026f217f2022-12-21T23:34:39ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2017-05-01810.3389/fmicb.2017.00742242501Towards Identifying Protective B-Cell Epitopes: The PspA StoryNaeem Khan0Arif T. Jan1Glycobiology Group, Max Planck Institute of Colloids and Interfaces (MPG)Potsdam, GermanyDepartment of Medical Biotechnology, Yeungnam UniversityGyeongsan, South KoreaPneumococcal surface protein A (PspA) is one of the most abundant cell surface protein of Streptococcus pneumoniae (S. pneumoniae). PspA variants are structurally and serologically diverse and help evade complement-mediated phagocytosis of S. pneumoniae, which is essential for its survival in the host. PspA is currently been screened for employment in the generation of more effective (serotype independent) vaccine to overcome the limitations of polysaccharide based vaccines, providing serotype specific immune responses. The cross-protection eliciting regions of PspA localize to the α-helical and proline rich regions. Recent data indicate significant variation in the ability of antibodies induced against the recombinant PspA variants to recognize distinct S. pneumoniae strains. Hence, screening for the identification of the topographical repertoire of B-cell epitopes that elicit cross-protective immune response seems essential in the engineering of a superior PspA-based vaccine. Herein, we revisit epitope identification in PspA and the utility of hybridoma technology in directing the identification of protective epitope regions of PspA that can be used in vaccine research.http://journal.frontiersin.org/article/10.3389/fmicb.2017.00742/fullantibodiesepitopeshybridomapneumococcal surface protein AStreptococcus pneomoniae
spellingShingle Naeem Khan
Arif T. Jan
Towards Identifying Protective B-Cell Epitopes: The PspA Story
Frontiers in Microbiology
antibodies
epitopes
hybridoma
pneumococcal surface protein A
Streptococcus pneomoniae
title Towards Identifying Protective B-Cell Epitopes: The PspA Story
title_full Towards Identifying Protective B-Cell Epitopes: The PspA Story
title_fullStr Towards Identifying Protective B-Cell Epitopes: The PspA Story
title_full_unstemmed Towards Identifying Protective B-Cell Epitopes: The PspA Story
title_short Towards Identifying Protective B-Cell Epitopes: The PspA Story
title_sort towards identifying protective b cell epitopes the pspa story
topic antibodies
epitopes
hybridoma
pneumococcal surface protein A
Streptococcus pneomoniae
url http://journal.frontiersin.org/article/10.3389/fmicb.2017.00742/full
work_keys_str_mv AT naeemkhan towardsidentifyingprotectivebcellepitopesthepspastory
AT ariftjan towardsidentifyingprotectivebcellepitopesthepspastory