Δημοσιεύσεις

Project Acronym: ALECT2Amyloidosis
Title: Structural and Computational Studies of Amyloid Aggregation in ALECT2 Amyloidosis
Affiliation: national and kapodistrian university of athens
Pi: Vasiliki Iconomidou
Research Field: biochemistry, bioinformatics and life sciences

Delving into the amyloidogenic core of human leukocyte chemotactic factor 2
by Paraskevi L. Tsiolaki, Georgia I. Nasi, Fotis A. Baltoumas, Shannon Fishman, Ho-Chou Tu and Vassiliki A. Iconomidou
Abstract:
ALECT2 (leukocyte chemotactic factor 2) amyloidosis is one of the most recently identified amyloid-related diseases, with LECT2 amyloids commonly found in different types of tissues. Under physiological conditions, LECT2 is a 16 kDa multifunctional protein produced by the hepatocytes and secreted into circulation. The pathological mechanisms causing LECT2 transition into the amyloid state are still largely unknown. In the case of ALECT2 patients, there is no disease-causing mutation, yet almost all patients carry a common polymorphism that appears to be necessary but not sufficient to directly trigger amyloidogenesis. In this work, we followed a reductionist methodology in order to detect critical amyloidogenic “hot-spots” during the fibrillation of LECT2. By associating experimental and computational assays, this approach reveals the explicit amyloidogenic core of human LECT2 and pinpoints regions with distinct amyloidogenic properties. The fibrillar architecture of LECT2 polymers, based on our results, provides a wealth of detailed information about the amyloidogenic “hot-spot” interactions and represents a starting point for future peptide-driven intervention in ALECT2 amyloidosis.
Reference:
Delving into the amyloidogenic core of human leukocyte chemotactic factor 2 (Paraskevi L. Tsiolaki, Georgia I. Nasi, Fotis A. Baltoumas, Shannon Fishman, Ho-Chou Tu and Vassiliki A. Iconomidou), In Journal of Structural Biology, 2019.
Bibtex Entry:
@article{TSIOLAKI2019,
 title = {Delving into the amyloidogenic core of human leukocyte chemotactic factor 2},
 journal = {Journal of Structural Biology},
 year = {2019},
 bibyear = {2019},
 issn = {1047-8477},
 doi = {10.1016/j.jsb.2019.06.001},
 url = {http://www.sciencedirect.com/science/article/pii/S1047847719301303},
 author = {Paraskevi L. Tsiolaki and Georgia I. Nasi and Fotis A. Baltoumas and Shannon Fishman and Ho-Chou Tu and Vassiliki A. Iconomidou},
 abstract = {ALECT2 (leukocyte chemotactic factor 2) amyloidosis is one of the most recently identified amyloid-related diseases, with LECT2 amyloids commonly found in different types of tissues. Under physiological conditions, LECT2 is a 16 kDa multifunctional protein produced by the hepatocytes and secreted into circulation. The pathological mechanisms causing LECT2 transition into the amyloid state are still largely unknown. In the case of ALECT2 patients, there is no disease-causing mutation, yet almost all patients carry a common polymorphism that appears to be necessary but not sufficient to directly trigger amyloidogenesis. In this work, we followed a reductionist methodology in order to detect critical amyloidogenic “hot-spots” during the fibrillation of LECT2. By associating experimental and computational assays, this approach reveals the explicit amyloidogenic core of human LECT2 and pinpoints regions with distinct amyloidogenic properties. The fibrillar architecture of LECT2 polymers, based on our results, provides a wealth of detailed information about the amyloidogenic “hot-spot” interactions and represents a starting point for future peptide-driven intervention in ALECT2 amyloidosis.},
}