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. 2014 Jun 15;5(11):3607-10.
doi: 10.18632/oncotarget.1964.

BRAF V600E mutations in urine and plasma cell-free DNA from patients with Erdheim-Chester disease

Filip Janku  1 , Cecile Rose T Vibat, Karena Kosco, Veronica R Holley, Goran Cabrilo, Funda Meric-Bernstam, Vanda M Stepanek, Patrick P Lin, Lorieta Leppin, Latifa Hassaine, Jason C Poole, Razelle Kurzrock, Mark G Erlander
Affiliations

BRAF V600E mutations in urine and plasma cell-free DNA from patients with Erdheim-Chester disease

Filip Janku et al. Oncotarget. .

Abstract

Erdheim-Chester disease (ECD) is a rare histiocytosis with a high prevalence of BRAF V600E mutation (>50% of patients). Patients with BRAF-mutant ECD can respond to BRAF inhibitors. Unfortunately, the lack of adequate archival tissue often precludes BRAF testing. We hypothesized that cell-free DNA (cfDNA) from plasma or urine can offer an alternative source of biologic material for testing. We tested for BRAF V600E mutation in cfDNA from the plasma and urine of 6 ECD patients. In patients with available archival tissue, the result of BRAF mutation analysis was concordant with plasma and urine cfDNA results in all 3 patients (100% agreement, kappa 1.00). In all 6 patients, BRAF mutation analysis of plasma and urine cfDNA was concordant in 5 of 6 patients (83% agreement, kappa 0.67). Testing for BRAF V600E mutation in plasma and urine cfDNA should be further investigated as an alternative to archival tissue mutation analysis.

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References

    1. Janku F, Amin HM, Yang D, Garrido-Laguna I, Trent JC, Kurzrock R. Response of histiocytoses to imatinib mesylate: fire to ashes. J Clin Oncol. 2010;28(31):e633–636. - PubMed
    1. Arnaud L, Hervier B, Neel A, Hamidou MA, Kahn JE, Wechsler B, Perez-Pastor G, Blomberg B, Fuzibet JG, Dubourguet F, Marinho A, Magnette C, Noel V, Pavic M, Casper J, Beucher AB, et al. CNS involvement and treatment with interferon-alpha are independent prognostic factors in Erdheim-Chester disease: a multicenter survival analysis of 53 patients. Blood. 2011;117(10):2778–2782. - PubMed
    1. Janku F, Munoz J, Subbiah V, Kurzrock R. A tale of two histiocytic disorders. Oncologist. 2013;18(1):2–4. - PMC - PubMed
    1. Haroche J, Charlotte F, Arnaud L, von Deimling A, Helias-Rodzewicz Z, Hervier B, Cohen-Aubart F, Launay D, Lesot A, Mokhtari K, Canioni D, Galmiche L, Rose C, Schmalzing M, Croockewit S, Kambouchner M, et al. High prevalence of BRAF V600E mutations in Erdheim-Chester disease but not in other non-Langerhans cell histiocytoses. Blood. 2012;120(13):2700–2703. - PubMed
    1. Haroche J, Cohen-Aubart F, Emile JF, Arnaud L, Maksud P, Charlotte F, Cluzel P, Drier A, Hervier B, Benameur N, Besnard S, Donadieu J, Amoura Z. Dramatic efficacy of vemurafenib in both multisystemic and refractory Erdheim-Chester disease and Langerhans cell histiocytosis harboring the BRAF V600E mutation. Blood. 2013;121(9):1495–1500. - PubMed