Role of cargo receptors in Synphilin-1 mediated selective autophagy of protein aggregates.

The ANK-1 domain of synphilin-1 has been recently identified to able to impart autophagic clearance signals to certain disease-linked protein inclusions that were previously resistant to clearance by autophagy. To examine whether ANK1 cooperates with known cargo adaptors, p62 and NBR1, in mediating...

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Main Author: Lee, Karen Feng Yi.
Other Authors: School of Biological Sciences
Format: Final Year Project (FYP)
Language:English
Published: 2012
Subjects:
Online Access:http://hdl.handle.net/10356/49281
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author Lee, Karen Feng Yi.
author2 School of Biological Sciences
author_facet School of Biological Sciences
Lee, Karen Feng Yi.
author_sort Lee, Karen Feng Yi.
collection NTU
description The ANK-1 domain of synphilin-1 has been recently identified to able to impart autophagic clearance signals to certain disease-linked protein inclusions that were previously resistant to clearance by autophagy. To examine whether ANK1 cooperates with known cargo adaptors, p62 and NBR1, in mediating aggrephagy of ANK1-p38 (A38) inclusions, independent and combinatorial ablation of these cargo adaptors was performed in a wild type and p62 knockout (KO) mouse embryonic fibroblast (MEF) system. By monitoring the turnover and levels of various autophagic markers, we found that variable cargo adaptor levels did not seem to have an impact on the general autophagic function in the cells. Aggrephagic clearance examined by the expression of A38 in p62 KO MEFs to induce inclusion formation demonstrated a significant clearance of protein inclusions that differ only slightly from the clearance presented in wild type cells. Thus, our results revealed that the downregulation of the cargo adaptor protein p62 did not exert a significant impact on synphilin-1 mediated clearance of protein aggregates.
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spelling ntu-10356/492812023-02-28T18:01:58Z Role of cargo receptors in Synphilin-1 mediated selective autophagy of protein aggregates. Lee, Karen Feng Yi. School of Biological Sciences Wong Siew Peng Esther DRNTU::Science The ANK-1 domain of synphilin-1 has been recently identified to able to impart autophagic clearance signals to certain disease-linked protein inclusions that were previously resistant to clearance by autophagy. To examine whether ANK1 cooperates with known cargo adaptors, p62 and NBR1, in mediating aggrephagy of ANK1-p38 (A38) inclusions, independent and combinatorial ablation of these cargo adaptors was performed in a wild type and p62 knockout (KO) mouse embryonic fibroblast (MEF) system. By monitoring the turnover and levels of various autophagic markers, we found that variable cargo adaptor levels did not seem to have an impact on the general autophagic function in the cells. Aggrephagic clearance examined by the expression of A38 in p62 KO MEFs to induce inclusion formation demonstrated a significant clearance of protein inclusions that differ only slightly from the clearance presented in wild type cells. Thus, our results revealed that the downregulation of the cargo adaptor protein p62 did not exert a significant impact on synphilin-1 mediated clearance of protein aggregates. Bachelor of Science in Biological Sciences 2012-05-16T08:57:40Z 2012-05-16T08:57:40Z 2012 2012 Final Year Project (FYP) http://hdl.handle.net/10356/49281 en Nanyang Technological University 31 p. application/pdf
spellingShingle DRNTU::Science
Lee, Karen Feng Yi.
Role of cargo receptors in Synphilin-1 mediated selective autophagy of protein aggregates.
title Role of cargo receptors in Synphilin-1 mediated selective autophagy of protein aggregates.
title_full Role of cargo receptors in Synphilin-1 mediated selective autophagy of protein aggregates.
title_fullStr Role of cargo receptors in Synphilin-1 mediated selective autophagy of protein aggregates.
title_full_unstemmed Role of cargo receptors in Synphilin-1 mediated selective autophagy of protein aggregates.
title_short Role of cargo receptors in Synphilin-1 mediated selective autophagy of protein aggregates.
title_sort role of cargo receptors in synphilin 1 mediated selective autophagy of protein aggregates
topic DRNTU::Science
url http://hdl.handle.net/10356/49281
work_keys_str_mv AT leekarenfengyi roleofcargoreceptorsinsynphilin1mediatedselectiveautophagyofproteinaggregates