Transthyretin: From Structural Stability to Osteoarticular and Cardiovascular Diseases

Transthyretin (TTR) is a tetrameric protein transporting hormones in the plasma and brain, which has many other activities that have not been fully acknowledged. TTR is a positive indicator of nutrition status and is negatively correlated with inflammation. TTR is a neuroprotective and oxidative-str...

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Main Authors: Elżbieta Wieczorek, Andrzej Ożyhar
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/10/7/1768
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author Elżbieta Wieczorek
Andrzej Ożyhar
author_facet Elżbieta Wieczorek
Andrzej Ożyhar
author_sort Elżbieta Wieczorek
collection DOAJ
description Transthyretin (TTR) is a tetrameric protein transporting hormones in the plasma and brain, which has many other activities that have not been fully acknowledged. TTR is a positive indicator of nutrition status and is negatively correlated with inflammation. TTR is a neuroprotective and oxidative-stress-suppressing factor. The TTR structure is destabilized by mutations, oxidative modifications, aging, proteolysis, and metal cations, including Ca<sup>2+</sup>. Destabilized TTR molecules form amyloid deposits, resulting in senile and familial amyloidopathies. This review links structural stability of TTR with the environmental factors, particularly oxidative stress and Ca<sup>2+</sup>, and the processes involved in the pathogenesis of TTR-related diseases. The roles of TTR in biomineralization, calcification, and osteoarticular and cardiovascular diseases are broadly discussed. The association of TTR-related diseases and vascular and ligament tissue calcification with TTR levels and TTR structure is presented. It is indicated that unaggregated TTR and TTR amyloid are bound by vicious cycles, and that TTR may have an as yet undetermined role(s) at the crossroads of calcification, blood coagulation, and immune response.
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spelling doaj.art-b76163adbb054bceac369997147820a92023-11-22T03:29:47ZengMDPI AGCells2073-44092021-07-01107176810.3390/cells10071768Transthyretin: From Structural Stability to Osteoarticular and Cardiovascular DiseasesElżbieta Wieczorek0Andrzej Ożyhar1Department of Biochemistry, Molecular Biology and Biotechnology, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, PolandDepartment of Biochemistry, Molecular Biology and Biotechnology, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, PolandTransthyretin (TTR) is a tetrameric protein transporting hormones in the plasma and brain, which has many other activities that have not been fully acknowledged. TTR is a positive indicator of nutrition status and is negatively correlated with inflammation. TTR is a neuroprotective and oxidative-stress-suppressing factor. The TTR structure is destabilized by mutations, oxidative modifications, aging, proteolysis, and metal cations, including Ca<sup>2+</sup>. Destabilized TTR molecules form amyloid deposits, resulting in senile and familial amyloidopathies. This review links structural stability of TTR with the environmental factors, particularly oxidative stress and Ca<sup>2+</sup>, and the processes involved in the pathogenesis of TTR-related diseases. The roles of TTR in biomineralization, calcification, and osteoarticular and cardiovascular diseases are broadly discussed. The association of TTR-related diseases and vascular and ligament tissue calcification with TTR levels and TTR structure is presented. It is indicated that unaggregated TTR and TTR amyloid are bound by vicious cycles, and that TTR may have an as yet undetermined role(s) at the crossroads of calcification, blood coagulation, and immune response.https://www.mdpi.com/2073-4409/10/7/1768heart diseaseatherosclerosisthrombosisinflammationCOVID-19amyloid
spellingShingle Elżbieta Wieczorek
Andrzej Ożyhar
Transthyretin: From Structural Stability to Osteoarticular and Cardiovascular Diseases
Cells
heart disease
atherosclerosis
thrombosis
inflammation
COVID-19
amyloid
title Transthyretin: From Structural Stability to Osteoarticular and Cardiovascular Diseases
title_full Transthyretin: From Structural Stability to Osteoarticular and Cardiovascular Diseases
title_fullStr Transthyretin: From Structural Stability to Osteoarticular and Cardiovascular Diseases
title_full_unstemmed Transthyretin: From Structural Stability to Osteoarticular and Cardiovascular Diseases
title_short Transthyretin: From Structural Stability to Osteoarticular and Cardiovascular Diseases
title_sort transthyretin from structural stability to osteoarticular and cardiovascular diseases
topic heart disease
atherosclerosis
thrombosis
inflammation
COVID-19
amyloid
url https://www.mdpi.com/2073-4409/10/7/1768
work_keys_str_mv AT elzbietawieczorek transthyretinfromstructuralstabilitytoosteoarticularandcardiovasculardiseases
AT andrzejozyhar transthyretinfromstructuralstabilitytoosteoarticularandcardiovasculardiseases