Identification and characterization of antibodies elicited by human cystatin C fragment
Izabela Behrendt , Martyna Prądzińska , Marta Spodzieja , Paulina Czaplewska , Aleksandra Kołodziejczyk , Aneta Szymańska , Franciszek Kasprzykowski , Susanna L. Lundström , Roman A. Zubarev , Sylwia Rodziewicz-Motowidło
AbstractAmyloid formation is associated with a number of neurodegenerative diseases that affect the independence and quality of life of aging populations. One of rather atypical, occurring at a young age amyloidosis is hereditary cystatin C amyloid angiopathy (HCCAA) related to aggregation of L68Q variant of human cystatin C (hCC). Human cystatin C plays a very important role in many aspects of human health; however, its amyloidogenic propertiesmanifested inHCCAA present a real, lethal threat to some populations and any work on factors that can affect possible influencing hCC aggregation is not to overestimate. It was proved that interaction of hCC withmonoclonal antibodies suppresses significantly hCC dimerization process. Therefore, immunotherapy seems to be the right approach toward possible HCCAA treatment. In this work, the hCC fragment encompassing residue 60‐70 (in 2 variants: linear peptide and multiple antigenic peptide) was used as an immunogen in rabbit immunization. As a result, specific anti‐hCC antibodies were found in both rabbit sera. Surprisingly, rabbit antibodies were obtained after immunization with only a short peptide. The obtained antibodies were characterized, and their influence on the aggregation propensity of the hCC molecules was evaluated. The antibodies turned out not to have any significant influence on the cystatin C dimerization process.Nevertheless,we hope that antibodies elicited in rabbits by other hCC fragments could lead to elaboration of effective treatment against HCCAA.
|Journal series||Journal of Molecular Recognition, ISSN 0952-3499, (A 25 pkt)|
|Publication size in sheets||0.6|
|Keywords in English||epitope identification, human cystatin C, mass spectrometry, multiple antigenic peptide, polyclonal antibodies|
|Score|| = 25.0, 17-03-2019, ArticleFromJournal|
= 25.0, 17-03-2019, ArticleFromJournal
|Publication indicators||= 1; = 1; : 2016 = 0.721; : 2017 = 1.868 (2) - 2017=1.901 (5)|
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