{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T01:59:07Z","timestamp":1787018347264,"version":"build-2736575974"},"reference-count":58,"publisher":"American Society for Clinical Investigation","issue":"7","license":[{"start":{"date-parts":[[2022,4,8]],"date-time":"2022-04-08T00:00:00Z","timestamp":1649376000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"by the Northwestern University George M. O\u2019Brien Kidney Research Core Center","award":["P30 DK114857"],"award-info":[{"award-number":["P30 DK114857"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,4,8]]},"abstract":"<jats:p>Amyloidosis involves stepwise growth of fibrils assembled from soluble precursors. Transthyretin (TTR) naturally folds into a stable tetramer, whereas conditions and mutations that foster aberrant monomer formations facilitate TTR oligomeric aggregation and subsequent fibril extension. We investigated the early assembly of oligomers by WT TTR compared with its V30M and V122I variants. We monitored time-dependent redistribution among monomer, dimer, tetramer, and oligomer contents in the presence and absence of multimeric TTR seeds. The seeds were artificially constructed recombinant multimers that contained 20\u201340 TTR subunits via engineered biotin-streptavidin (SA) interactions. As expected, these multimer seeds rapidly nucleated TTR monomers into larger complexes, while having less effect on dimers and tetramers. In vivo, SA-induced multimers formed TTR-like deposits in the heart and the kidney following i.v. injection in mice. While all 3 variants prominently deposited glomerulus in the kidney, only V30M resulted in extensive deposition in the heart. The cardiac TTR deposits varied in size and shape and were localized in the intermyofibrillar space along the capillaries. These results are consistent with the notion of monomeric TTR engaging in high-avidity interactions with tissue amyloids. Our multimeric induction approach provides a model for studying the initiation of TTR deposition in the heart.<\/jats:p>","DOI":"10.1172\/jci.insight.150131","type":"journal-article","created":{"date-parts":[[2022,4,8]],"date-time":"2022-04-08T08:36:17Z","timestamp":1649406977000},"source":"Crossref","is-referenced-by-count":6,"title":["High-avidity binding drives nucleation of amyloidogenic transthyretin monomer"],"prefix":"10.1172","volume":"7","author":[{"given":"Li","family":"Gao","sequence":"first","affiliation":[{"name":"Feinberg Cardiovascular and Renal Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois, USA."},{"name":"Department of Cardiology, and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0872-2986","authenticated-orcid":true,"given":"Xinfang","family":"Xie","sequence":"additional","affiliation":[{"name":"Feinberg Cardiovascular and Renal Research Institute, Northwestern University, 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