Faculty Collaboration Database

Presence of fluorescent in situ hybridization abnormalities is associated with plasma cell burden in light chain amyloidosis. Hematol Oncol Stem Cell Ther 2018 Jun;11(2):105-111

Date

08/24/2017

Pubmed ID

28830801

DOI

10.1016/j.hemonc.2017.07.005

Scopus ID

2-s2.0-85027963716 (requires institutional sign-in at Scopus site)   7 Citations

Abstract

OBJECTIVE/BACKGROUND: To assess abnormalities found on CD138-enriched fluorescent in situ hybridization (FISH) studies on pre-treatment bone marrow in systemic amyloid light-chain amyloidosis (AL) and correlate findings between these abnormalities with organ involvement and 1-year survival.

METHODS: We reviewed 107 patients with systemic AL to identify the impact of a diagnostic FISH study done on plasma cell-enriched bone marrow in our institution between January 2010 and January 2015; 77 had pre-treatment testing performed.

RESULTS: A total of 77 (61%) patients had abnormal FISH including: hyperdiploidy (29%), t(11;14), (20%), hypodiploidy (16%), t(4;14), (1%), del17p (5%), and+1q21 (5%). Abnormal FISH studies were more likely in those patients with plasma cell involvement≥10% (p=.002). FISH abnormalities were not shown to correlate with stage, cardiac involvement, or survival at 1year. One-year survival was significantly affected by stage at diagnosis and presence of cardiac and hepatic amyloid involvement.

CONCLUSION: We conclude that in AL, FISH abnormalities are associated with clonal burden. We found no impact of these markers on the type of organ involvement or 1-year survival.

Author List

Hammons L, Brazauskas R, Pasquini M, Hamadani M, Hari P, D'Souza A

Authors

Ruta Brazauskas PhD Associate Professor in the Institute for Health and Equity department at Medical College of Wisconsin
Anita D'Souza MD Associate Professor in the Medicine department at Medical College of Wisconsin
Mehdi H. Hamadani MD Professor in the Medicine department at Medical College of Wisconsin
Parameswaran Hari MD Adjunct Professor in the Medicine department at Medical College of Wisconsin
Marcelo C. Pasquini MD, MS Professor in the Medicine department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Adult
Aged
Aged, 80 and over
Disease-Free Survival
Female
Humans
Immunoglobulin Light-chain Amyloidosis
In Situ Hybridization, Fluorescence
Male
Middle Aged
Plasma Cells
Ploidies
Retrospective Studies
Survival Rate