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Inhibition by small-molecule ligands of formation of amyloid fibrils of an immunoglobulin light chain variable domain

Journal Article · · eLife
DOI:https://doi.org/10.7554/eLife.10935· OSTI ID:1238288
 [1];  [1];  [1];  [2];  [1];  [1];  [1];  [1]
  1. UCLA, Los Angeles, CA (United States); UCLA-DOE Inst. for Genomics and Proteomics, Los Angeles, CA (United States)
  2. UCLA-DOE Inst. for Genomics and Proteomics, Los Angeles, CA (United States); UCLA, Los Angeles, CA (United States)

Overproduction of immunoglobulin light chains leads to systemic amyloidosis, a lethal disease characterized by the formation of amyloid fibrils in patients' tissues. Excess light chains are in equilibrium between dimers and less stable monomers which can undergo irreversible aggregation to the amyloid state. The dimers therefore must disassociate into monomers prior to forming amyloid fibrils. Here we identify ligands that inhibit amyloid formation by stabilizing the Mcg light chain variable domain dimer and shifting the equilibrium away from the amyloid-prone monomer.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Inst. of Health; National Inst. of General Medical Sciences
OSTI ID:
1238288
Journal Information:
eLife, Journal Name: eLife Journal Issue: 11, 2015 Vol. 4; ISSN 2050-084X
Publisher:
eLife Sciences Publications, Ltd.Copyright Statement
Country of Publication:
United States
Language:
ENGLISH

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Cited By (9)

Cryo-EM structure of cardiac amyloid fibrils from an immunoglobulin light chain AL amyloidosis patient journal March 2019
Concurrent structural and biophysical traits link with immunoglobulin light chains amyloid propensity journal December 2017
Role of domain interactions in the aggregation of full-length immunoglobulin light chains journal December 2018
Stabilization of amyloidogenic immunoglobulin light chains by small molecules journal April 2019
Aggregation of Full-length Immunoglobulin Light Chains from Systemic Light Chain Amyloidosis (AL) Patients Is Remodeled by Epigallocatechin-3-gallate journal December 2016
Emerging therapeutic targets currently under investigation for the treatment of systemic amyloidosis journal October 2017
Systemic amyloidosis: novel therapies and role of biomarkers journal August 2016
Cryo-EM structure of cardiac amyloid fibrils from an immunoglobulin light chain (AL) amyloidosis patient journal October 2018
AL amyloidosis: from molecular mechanisms to targeted therapies journal December 2017

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